Proceedings of the International Ocean Discovery Program

Volume 390/393

South Atlantic Transect

Expedition 390C of the R/V JOIDES Resolution
from Kristiansand, Norway, to Cape Town, South Africa
Sites U1556–U1559
5 October–5 December 2020

Expedition 395E of the R/V JOIDES Resolution
from Cape Town, South Africa, to Reykjavik, Iceland
Sites U1556, U1557, U1560, and U1561
6 April–5 June 2021

Expedition 390 of the R/V JOIDES Resolution
from and to Cape Town, South Africa
Sites U1556, U1557, and U1559
7 April–7 June 2022

Expedition 393 of the R/V JOIDES Resolution
from and to Cape Town, South Africa
Sites U1558–U1560 and U1583
7 June–7 August 2022

Volume authorship

Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists

Published by
International Ocean Discovery Program

---

Publisher's notes

This publication was prepared by the JOIDES Resolution Science Operator (JRSO) at Texas A&M University (TAMU) as an account of work performed under the International Ocean Discovery Program (IODP). This material is based upon work supported by the JRSO, which is a major facility funded by the National Science Foundation Cooperative Agreement Number OCE1326927. Funding for IODP is provided by the following international partners:

• National Science Foundation (NSF), United States
• Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan
• European Consortium for Ocean Research Drilling (ECORD)
• Ministry of Science and Technology (MOST), People's Republic of China
• Australia-New Zealand IODP Consortium (ANZIC)
• Ministry of Earth Sciences (MoES), India

The JRSO is supported by the NSF. Any opinions, findings, and conclusions or recommendations expressed in this material do not necessarily reflect the views of the NSF, the participating agencies, TAMU, or Texas A&M Research Foundation.

The bulk of the shipboard-collected core data from this expedition is accessible at https://zenodo.org/communities/iodp (see list of available data sets). If you cannot access this site or need additional data, please contact Data Librarian, International Ocean Discovery Program JOIDES Resolution Science Operator, Texas A&M University (database@iodp.tamu.edu).

A complete set of the logging data collected during the expedition is available at http://mlp.ldeo.columbia.edu/logdb/scientific_ocean_drilling. If you have problems downloading the data, wish to receive additional logging data, or have questions regarding the data, please contact Database Administrator, Borehole Research Group, Lamont-Doherty Earth Observatory of Columbia University (logdb@ldeo.columbia.edu).

Supplemental data were provided by the authors and may not conform to IODP publication formats.

JRSO expedition photos are the property of IODP and are public access. Some core photographs have been tonally enhanced to better illustrate particular features of interest. High-resolution images are available upon request.

Cover photograph of ~61, 49, and 30 Ma uppermost basement along the South Atlantic Transect (SAT) highlights some interactions between igneous crust, sedimentation, and fluid flow—potential sites of biogeochemical exchange in aging crust. The multidisciplinary SAT experiment was designed to recover both sediment and basement cores along an age transect across the SAT. From left: sedimentary breccia of pillow lava fragments in hydrothermally altered (indurated) calcareous sediments (390C-U1556A-32X-1), pillow lavas with interflow indurated calcareous sediments (393-U1558D-6R-2), and breccia of broken basalt and altered glass clasts in indurated calcareous sediment matrix (393-U1583F-16R-2) (left: 360° images of core exteriors from Deutsche Montan Technologie [DMT] scanner generously loaned to IODP by International Continental Scientific Drilling Program [ICDP] for SAT expeditions; right: split-core surface linescan images). Photo credit: IODP JRSO. Site map shows SAT study region. Top: bathymetry of South Atlantic Ocean (https://doi.org/10.1029/2008GC002332). Inset: regional setting. Bottom: magnetic anomalies (https://doi.org/10.7289/V5H70CVX). Solid lines = Crustal Reflectivity Experiment Southern Transect (CREST) seismic reflection profiles (https://doi.org/10.1594/IEDA/500255). WOCE = World Ocean Circulation Experiment, MAR = Mid-Atlantic Ridge, RGR = Rio Grande Rise, ERGR = eastern Rio Grande Rise, TdC = Tristan de Cunha.

Copyright

Except where otherwise noted, this work is licensed under the Creative Commons Attribution 4.0 International (CC BY 4.0) license (https://creativecommons.org/licenses/by/4.0/). Unrestricted use, distribution, and reproduction are permitted, provided the original author and source are credited.

Examples of how to cite this volume or part of this volume are available at http://publications.iodp.org/proceedings/390_393/390393title.html#bib.

ISSN

World Wide Web: 2377-3189

ISBN

978-1-954252-83-7

Volume DOI

https://doi.org/10.14379/iodp.proc.390393.2024

Publication date

23 January 2024

---

Contents

Expedition reports

Chapters

Expedition 390/393 summary

R.M. Coggon et al.

PDF Figures Tables Cited by

Expedition 390/393 methods

R.M. Coggon et al.

PDF Figures Tables Cited by

Site U1556

R.M. Coggon et al.

PDF Figures Tables Cited by

Site U1561

R.M. Coggon et al.

PDF Figures Tables Cited by

Site U1557

R.M. Coggon et al.

PDF Figures Tables Cited by

Site U1558

D.A.H. Teagle et al.

PDF Figures Tables Cited by

Site U1583

D.A.H. Teagle et al.

PDF Figures Tables Cited by

Site U1560

D.A.H. Teagle et al.

PDF Figures Tables Cited by

Site U1559

R.M. Coggon et al.

PDF Figures Tables Cited by

Core descriptions

Visual core descriptions (VCDs) are presented in PDF files for each site.

VCD legend PDF

Thin sections and/or smear slides for each site or hole are presented in CSV or PDF format in the CORES directory and in Excel format in DESC_WKB in Supplementary material. The entire set of core images in PDF is available in the IMAGES directory.

Site U1556: Visual core descriptions · Smear slides · Thin sections

Site U1561: Visual core descriptions · Smear slides · Thin sections

Site U1557: Visual core descriptions · Smear slides · Thin sections

Site U1558: Visual core descriptions · Smear slides · Thin sections

Site U1583: Visual core descriptions · Smear slides · Thin sections

Site U1560: Visual core descriptions · Smear slides · Thin sections

Site U1559: Visual core descriptions · Smear slides · Thin sections

Supplementary material

Supplementary material for the Volume 390/393 expedition reports includes mass accumulation rate data, piece logs, X-ray diffraction data, and DESClogik workbooks in Microsoft Excel format; Dick Kroon memorial service files and photographs in PDF, JPG format, and Microsoft Word format; and a portable X-ray fluorescence calibration workbook in Microsoft Excel format. A full list of directories can be found in SUPP_MAT in the volume zip folder or on the Supplementary material for Volume 390/393 expedition reports web page.

Expedition research results

Data reports

Data report: X-ray fluorescence scanning of sediment cores, IODP Expedition 390/393 Site U1557, South Atlantic Transect

C.M. Lowery et al.

PDF Figures Supplementary material Cited by

Data report: X-ray fluorescence scanning of sediment cores, IODP Expedition 390/393 Site U1583, South Atlantic Transect

A.R. Lam et al.

PDF Figures Supplementary material Cited by

Data report: X-ray fluorescence scanning of sediment cores, IODP Expedition 390/393 Site U1558, South Atlantic Transect

A. Villa et al.

PDF Figures Table Supplementary material Cited by

Data report: X-ray fluorescence scanning of sediment cores, IODP Expedition 390/393 Site U1559, South Atlantic Transect

C. Robustelli Test et al.

PDF Figures Supplementary material Cited by

Data report: X-ray fluorescence scanning of sediment cores, IODP Expedition 390/393 Site U1560, South Atlantic Transect

C. Amadori et al.

PDF Figures Supplementary material Cited by

Data report: X-ray fluorescence scanning of sediment cores, IODP Expedition 390/393 Site U1556, South Atlantic Transect

Y. Wang et al.

PDF Figures Supplementary material Cited by

Data report: X-ray fluorescence scanning of sediment cores, IODP Expedition 390/393 Site U1561, South Atlantic Transect

C.M. Routledge et al.

PDF Figures Supplementary material Cited by

Data report: early Eocene–early Oligocene carbon and oxygen stable isotope data of bulk carbonates, IODP Expedition 390/393 Sites U1557 and U1558, South Atlantic Transect)

C. Borrelli et al.

PDF Figures Table Cited by

Data report: high-resolution digital imaging of whole-round hard rocks collected during IODP Expeditions 390C, 395E, 390, and 393, South Atlantic Transect, using a DMT CoreScan3

L.J.C. Grant et al.

PDF Figures Cited by

Data report: high downhole resolution portable X-ray fluorescence geochemistry of South Atlantic Transect basement cores, IODP Expeditions 390C, 395E, 390 and 393

M.K. Jonnalagadda et al.

PDF Figures Tables Supplementary material Cited by

Drilling location maps

A site map showing the drilling locations for this expedition and maps showing the drilling locations of all International Ocean Discovery Program (IODP) expeditions, produced using QGIS (http://www.qgis.org), and all Integrated Ocean Drilling Program, Ocean Drilling Program (ODP), and Deep Sea Drilling Project (DSDP) expeditions, produced using Generic Mapping Tools (GMT) of Paul Wessel and Walter H.F. Smith (https://www.generic-mapping-tools.org), are available in PDF.

• IODP Expedition 390/393 site map
• IODP map
• Integrated Ocean Drilling Program map (Expeditions 301–348)
• ODP map (Legs 100–210)
• DSDP map (Legs 1–96)

---

Dedication

Professor Dirk "Dick" Kroon

24 December 1957–24 May 2022
Regius Professor of Geology
University of Edinburgh, United Kingdom

This volume is dedicated to Dick Kroon, who passed on 24 May 2022 during IODP Expedition 390. A memorial tribute to Dick Kroon was held aboard JOIDES Resolution on 6 July while establishing Site U1583 at 20°26.03′W, 30°42.62′S.

Dick Kroon was a charismatic leader of the scientific ocean drilling community. He was a world class, highly cited scientist who made fundamental observations about our planet's climate, life, and oceans and their response to changes in the Earth system. Most of his research stemmed from sedimentary and paleoceanographic records preserved in cores from the oceans. Dick had a long and most productive engagement with scientific ocean drilling and JOIDES Resolution in particular, ever since he first sailed during Ocean Drilling Program (ODP) Leg 117 in 1987 in the early days of ODP. JOIDES Resolution was his temporary home for six voyages. Dick was Co-Chief Scientist twice aboard JOIDES Resolution for two of the most important and impactful paleoceanographic expeditions in the history of scientific ocean drilling that returned critical and influential records of major changes in the Earth system, including the Cretaceous/Tertiary (K/T) boundary and the Paleocene/Eocene Thermal Maximum (PETM), during ODP Legs 171B (Blake Nose) and 208 (Cenozoic Climate Extremes), respectively.

Dick was more than an excellent scientist. He was deeply involved in orchestrating and lubricating the many national and organizational parts of scientific ocean drilling in the Netherlands and the UK in Europe and internationally. He served as Chair of IODP-Netherlands (2002–2006), as Co-Chair of the IODP Science Evaluation Panel for 5 years (2012–2016), and finally as Chair of the IODP Forum (2019–2021), where he played an essential role ensuring that the whole is much greater than the sum of its parts. Through his guidance of the 2050 Science Framework, we have clear future goals and most importantly a willing and able next generation of international scientists to lead and take scientific ocean drilling forward.

Dick was a positive man, a natural optimist and enthusiast. He could see constructive ways forward in most things in life and science. This attitude is important and infectious. He promoted the idea that science and especially ocean drilling is fun. Science teams aboard JOIDES Resolution get to do things and go places in space and time that others do not. This is a privilege and luxury that we should embrace and not forget.

The multidisciplinary research of the South Atlantic Transect will be the first of many ways we uphold Dick's legacy.

Photo credit: Catherine Nigrini.

---

Acknowledgments

This volume presents the initial findings of the first phase of the South Atlantic Transect (SAT) campaign (IODP Expeditions 390, 393, 390C, and 395E) to drill a series of holes through sediment and basalts at increasing crustal ages across the western flank of the southern Mid-Atlantic Ridge. These activities are the culmination of ideas first discussed at the Multidisciplinary Transect Drilling During Transits workshop in College Station, Texas (USA), in 2013, supported by the U.S. Science Support Program and the Consortium for Ocean Leadership. Our operations and science in this region stand on the scientific shoulders of the ocean drilling giants of Deep Sea Drilling Project (DSDP) Leg 3—Arthur E. Maxwell, Richard von Herzen, and Kenneth J. Hsu—and the generations of colleagues who have built and nurtured this unique international collaboration to explore the oceans and the wider Earth system.

Since its inception, the multidisciplinary SAT campaign was strongly supported by the IODP Science Evaluation Panel, the JOIDES Resolution Facility Board, and the JOIDES Resolution Science Operator (JRSO). This support was further reflected in the enabling response to the Coronavirus Disease 2019 (COVID-19) pandemic that greatly enhanced our scientific achievements with engineering operations during Expeditions 390C and 395E that installed reentry cones and deep casing strings at the great majority of our primary target sites and recovered preliminary sediment sections to volcanic basement. These operations freed up time for great science during Expeditions 390 and 393, which returned to the South Atlantic with shipboard science teams.

We thank Captains Harm Nienhuis (Expedition 390C), Jake Robinson (Expeditions 395E and 390), and Tom Hartt (Expedition 393) and all of the mates, engineers, and crews of all four expeditions for keeping us safe, guiding us from site to site, keeping us in position, and bringing us safely back to port. Operations during the SAT expeditions were guided by TAMU Operations Superintendents Steve Midgley (Expeditions 390C and 390), Bill Rhinehart (Expedition 395E), and Kevin Grigar (Expedition 393). We greatly appreciate the efforts of the rig floor and aerial teams led by Offshore Installation Managers Wayne Lambert (Expeditions 390C and 393) and Mark Robinson (Expeditions 395E and 390) and tool pushers Craig Prosser and Glenn Barrett (Expeditions 390C and 393) and Joe "Bubba" Attryde and Phil Christie (Expeditions 395E and 390)—thank you for the great cores and for all your efforts keeping the holes open, keeping cones in the seafloor, and getting tools and bits back to the surface. We also thank the Schlumberger Logging Engineers Clayton Furman (Expeditions 390C, 395E, and 390), and Kirby Garrett (Expedition 393) for their expertise and unending energy during logging operations.

A huge shout out and thank you to the smiley and always welcoming Entier catering and stewarding teams who kept the ship spotless, our beds made, and all of us well fed and tidily folded in that eternal battle between our expanding waistlines and tightening clothes.

Great thanks to the IODP technical team, including Laboratory Officers Chieh Peng (Expeditions 390C and 390) and Eric Moortgat (Expedition 393) and Assistant Laboratory Officers Heather Barnes (Expeditions 390C and 393), Eric Moortgat (Expedition 390C), Aaron de Loach (Expedition 395E), Beth Novak (Expeditions 395E and 390), Daniel Marone (Expedition 390), and Doris Piñero Lajas (Expedition 393), who kept everything in the laboratories running and organized, backed up, and archived aboard the R/V JOIDES Resolution. Last but not least, we thank the JRSO publications team (Lorri Peters, Amy McWilliams, Jenni Hesse, Patrick Edwards, Julie Myers, Jean Wulfson, Doug Cummings [Expedition 393], Keith Dupuis, Rhonda Kappler, and Alyssa Stephens [Expedition 390]) for their support and professional organization of this huge report.

Site survey data for the SAT and IODP Proposal 853 was collected during the NSF-sponsored Crustal Reflectivity Experiment Southern Transect (CREST) aboard the R/V Marcus G. Langseth (MGL1601; January–February 2016; OCE‐1537169 UT and OCE‐1537108 TAMU to G.L. Christeson and R. Reece, respectively).

The DMT 360° core scanner was generously loaned by the International Continental Scientific Drilling Program (ICDP) with support for the transfer to JOIDES Resolution and safe return to GFZ-Potsdam (Germany) via a Natural Environment Research Council (NERC) UK-IODP award to the University of Southampton (United Kingdom). Patricia Gibbs (Peters and May, United Kingdom) and Tim Bronk (JRSO) are thanked for the successful logistic arrangements.

The completion of the four IODP Expeditions 390, 393, 390C, and 395E and the publication of our initial results in these proceedings are not the end to this SAT campaign. We look forward to the wealth of multidisciplinary and collaborative postexpedition science that this campaign will generate and hope to return to the SAT sooner or later to address still outstanding science questions during future endeavors.

---

Foreword

The International Ocean Discovery Program (IODP) represents the latest incarnation of almost five decades of scientific ocean drilling excellence and is generally accepted as the most successful international collaboration in the history of the Earth sciences. IODP builds seamlessly on the accomplishments of previous phases: the Deep Sea Drilling Project, Ocean Drilling Program, and Integrated Ocean Drilling Program. The 2013–2023 IODP Science Plan (Illuminating Earth's Past, Present, and Future) defines four themes and thirteen challenges for this decade of scientific ocean drilling that are both of fundamental importance in understanding how the Earth works and of significant relevance to society as the Earth changes, at least in part in response to anthropogenic forcing. This phase of IODP represents an intense level of international collaboration in bringing diverse drilling platforms and strategies to increasing our understanding of climate and ocean change, the deep biosphere and evolution of ecosystems, connections between Earth's deep processes and surface manifestations, and geologically induced hazards on human timeframes.

The Proceedings of the International Ocean Discovery Program presents the scientific and engineering results of IODP drilling projects, expedition by expedition. As in the preceding Integrated Ocean Drilling Program, expeditions in the current IODP phase are conducted by three implementing organizations, each providing a different drilling capability. These are the US Implementing Organization (USIO; through September 2014) and the JOIDES Resolution Science Operator (JRSO; as of October 2014), providing the leased commercial vessel JOIDES Resolution for riserless drilling operations; JAMSTEC's Institute for Marine-Earth Exploration and Engineering (MarE3), providing the drillship Chikyu for riser and occasional riserless operations; and the European Consortium for Ocean Research Drilling (ECORD) Science Operator (ESO), providing "mission-specific" platforms (MSPs) for expeditions that extend the IODP operational range where neither drillship is suitable, for example, in polar environments and in shallow waters. Scheduling decisions for each capability are made by three independent Facility Boards, each of which includes scientists, operators, and platform funding partners: the JOIDES Resolution Facility Board (JRFB), Chikyu IODP Board (CIB), and ECORD Facility Board (EFB). At the beginning of the current IODP, the three Facility Boards agreed to utilize Publication Services at the USIO and now the JRSO for production of all expedition Proceedings volumes and reports.

The current IODP differs from prior scientific ocean drilling programs in that it has neither a central management organization nor commingled funding for program-wide activities. Yet this phase of IODP retains a fundamental integrative structural element: a "bottom-up" evaluation of all proposals for drilling expeditions by a single advisory structure composed of scientists representing all international program partners. International scientists may submit drilling proposals to the Science Support Office; all submitted proposals are then evaluated by a Science Evaluation Panel in the context of the Science Plan.

The current IODP also has an international integrative level for high-level discussion and global consensus-building: the IODP Forum. The Forum is not only charged with assessing program-wide progress toward achieving the current Science Plan, but also with overseeing approaches toward a new bright future of scientific ocean drilling post 2023. At present, IODP involves 22 international funding agencies, including those from the United States, Japan, an Australia/New Zealand consortium (ANZIC), China, India, South Korea, and the 15 members of ECORD (Austria, Canada, Denmark, Finland, France, Germany, Ireland, Italy, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom). The IODP membership represents an unparalleled level of international scientific collaboration; one of the greatest and ongoing strengths of scientific ocean drilling.

Henk Brinkhuis
Chair, IODP Forum

---

Reviewers for this volume

Jeff Alt
Kirsty Edgar
Jeroen Groeneveld
Francisco Jimenez Espejo
Matthew Jones
Molly Patterson
Larry Peterson
Mark Reagan

---

International Ocean Discovery Program

JOIDES Resolution Science Operator

Website: http://iodp.tamu.edu

IODP JRSO

International Ocean Discovery Program

Texas A&M University

1000 Discovery Drive

College Station TX 77845-9547

USA

Tel: (979) 845-2673; Fax: (979) 845-4857

Email: information@iodp.tamu.edu

IODP JRSO Curation and Laboratories

IODP Gulf Coast Repository (GCR)

Texas A&M University

1000 Discovery Drive

College Station TX 77845-9547

USA

Tel: (979) 845-8490; Fax: (979) 845-1303

Email: curator@iodp.tamu.edu

European Consortium for Ocean Research Drilling, Science Operator (ESO)

Website: http://www.ecord.org

IODP ESO Coordinator: Science, Logistics, and Operations

British Geological Survey

The Lyell Centre

Research Avenue South

Edinburgh EH14 4AP

United Kingdom

Tel: (44) 131-667-1000; Fax: (44) 131-668-4140

Email: eso@bgs.ac.uk

IODP ESO Petrophysics

European Petrophysics Consortium

Department of Geology

University of Leicester

Leicester LE1 7RH

United Kingdom

Tel: (44) 116-252-3611; Fax: (44) 116-252-3918

Email: sjd27@leicester.ac.uk

IODP ESO Curation and Laboratories

IODP Bremen Core Repository (BCR)

Center for Marine Environmental Sciences (MARUM)

University of Bremen

Leobener Strasse

28359 Bremen

Germany

Tel: (49) 421-218-65560; Fax: (49) 421-218-98-65560

Email: bcr@marum.de

Japan Agency for Marine-Earth Science and Technology (JAMSTEC)

Website: http://www.jamstec.go.jp/chikyu/e

IODP Japan Science Operator

Institute for Marine-Earth Exploration and Engineering (MarE3)

Japan Agency for Marine-Earth Science and Technology

Yokohama Institute for Earth Sciences

3175-25 Showa-machi

Kanazawa-ku, Yokohama

Kanagawa 236-0001

Japan

Tel: (81) 45-778-5643; Fax: (81) 45-778-5704

Email: mare3-exp@jamstec.go.jp

IODP Japan Curation and Laboratories

IODP Kochi Institute for Core Sample Research (KCC)

Japan Agency for Marine-Earth Science and Technology

200 Monobe Otsu

3175-25 Showa-machi

Nankoku City, Kochi 783-8502

Japan

Tel: (81) 88-864-6705; Fax: (81) 88-878-2192

Email: kcc.contact@jamstec.go.jp

---

Expedition 390/393 participants*

Expedition 390 scientists

Rosalind M. Coggon

Co-Chief Scientist

School of Ocean and Earth Science

University of Southampton

United Kingdom

R.M.Coggon@soton.ac.uk

Jason B. Sylvan

Co-Chief Scientist

Department of Oceanography

Texas A&M University

USA

jasonsylvan@tamu.edu

Gail L. Christeson^†

Site Survey Data Lead

Marine Geology and Geophysics

National Science Foundation

USA

gchriste@nsf.gov

Also at

University of Texas Institute for Geophysics

USA

glchristeson@utexas.edu

Emily R. Estes

Expedition Project Manager/Staff Scientist

International Ocean Discovery Program

Texas A&M University

USA

estes@iodp.tamu.edu

Masataka Aizawa

Inorganic Geochemist

Graduate School of Engineering and Science

University of the Ryukyus

Japan

masataka-aizawa@apr.email.ne.jp

Chiara Borrelli^†

Micropaleontologist (benthic foraminifera)

Department of Earth and Environmental Sciences

University of Rochester

USA

cborrelli@ur.rochester.edu

Joshua D. Bridges

Paleomagnetist

Department of Earth and Environmental Sciences

University of Rochester

USA

jbridge2@ur.rochester.edu

Elliot J. Carter

Petrologist

School of Earth and Environmental Sciences

University of Manchester

United Kingdom

Present affiliation (23 April 2024):

School of Geography, Geology and the Environment

Keele University

United Kingdom

e.carter2@keele.ac.uk

Jaume Dinarès-Turell

Paleomagnetist

Section of Geomagnetism, Aeronomy and Environmental Geophysics

National Institute of Geophysics and Volcanology (INGV)

Italy

jaume.dinares@ingv.it

Justin D. Estep

Physical Properties Specialist/Core-Log-Seismic Correlator

School of Earth and Sustainability

Northern Arizona University

USA

justin.estep@nau.edu

William P. Gilhooly III

Organic Geochemist

Department of Earth Sciences

Indiana University/Purdue University, Indianapolis

USA

wgilhool@iupui.edu

Lewis J.C. Grant

Physical Properties Specialist/Stratigraphic Correlator

School of Ocean and Earth Science

University of Southampton

United Kingdom

l.grant@soton.ac.uk

Michael R. Kaplan

Sedimentologist

Lamont-Doherty Earth Observatory

Columbia University

USA

mkaplan@ldeo.columbia.edu

Pamela D. Kempton

Petrologist

Department of Geology

Kansas State University

USA

pkempton@ksu.edu

Walter Kurz^‡

Petrologist

Institute of Earth Sciences

University of Graz

Austria

walter.kurz@uni-graz.at

Christopher M. Lowery

Micropaleontologist (planktic foraminifera)

Institute for Geophysics

University of Texas at Austin

USA

cmlowery@utexas.edu

Andrew McIntyre

Physical Properties Specialist/Stratigraphic Correlator

School of Environment, Earth and Ecosystem Sciences

The Open University

United Kingdom

Andrew.mcintyre@open.ac.uk

Muthusamy Prakasam^‡

Micropaleontologist (planktic foraminifera)

Department of Science and Technology

Wadia Institute of Himalayan Geology

India

prakasam@wihg.res.in

Claire M. Routledge

Micropaleontologist (nannofossils)

Institute of Geosciences

Christian-Albrechts-University of Kiel

Germany

claire.routledge@ifg.uni-kiel.de

Angela L. Slagle

Physical Properties/Downhole Measurements

Lamont-Doherty Earth Observatory

Columbia University

USA

aslagle@ldeo.columbia.edu

Mako Takada

Microbiologist/Organic Geochemist

Graduate School of Frontier Sciences

University of Tokyo

Japan

mako-takada@g.ecc.u-tokyo.ac.jp

Leonardo Tamborrino

Sedimentologist

MARUM—Center for Marine Environmental Sciences

University of Bremen

Germany

ltamborrino@marum.de

Liyan Tian^‡

Petrologist

Institute of Deep-sea Science and Engineering

Chinese Academy of Sciences

China

lytian@idsse.ac.cn

Yi Wang

Inorganic Geochemist

Department of Geology and Geophysics

Woods Hole Oceanographic Institution

USA

ywang@whoi.edu

Kiho Yang

Sedimentologist

Department of Oceanography

Pusan National University

Republic of Korea

kyang@pusan.ac.kr

Tiantian Yu^‡

Microbiologist/Organic Geochemist

School of Oceanography

Shanghai Jiao Tong University

China

yutiantian@sjtu.edu.cn

Expedition 390 outreach

Marlo Garnsworthy

Outreach Officer

Icebird Studio

USA

icebirdstudio@outlook.com

Laura Guertin

Outreach Officer

Earth Science

Penn State Brandywine

USA

guertin@psu.edu

Expedition 393 scientists

Damon A.H. Teagle

Co-Chief Scientist

School of Ocean and Earth Science

University of Southampton

United Kingdom

Damon.Teagle@southampton.ac.uk

Julia Reece

Co-Chief Scientist

Department of Geology and Geophysics

Texas A&M University

USA

jreece@geos.tamu.edu

Trevor J. Williams

Expedition Project Manager/Staff Scientist

International Ocean Discovery Program

Texas A&M University

USA

williams@iodp.tamu.edu

Elmar Albers

Petrologist

Department of Geosciences

University of Bremen

Germany

e.albers@uni-bremen.de

Chiara Amadori

Physical Properties Specialist/Stratigraphic Correlator

Department of Earth and Environmental Sciences

University of Pavia

Italy

chiara.amadori@unipv.it

Thomas M. Belgrano

Petrologist

School of Ocean and Earth Science

University of Southampton

United Kingdom

T.Belgrano@soton.ac.uk

Timothy D'Angelo

Microbiologist/Organic Geochemist

Bigelow Laboratory for Ocean Sciences

USA

tdangelo@bigelow.org

Nobuhiro Doi

Micropaleontologist (nannofossils)

Division of Earth and Environmental Sciences

Chiba University

Japan

afna1872@chiba-u.jp

Aled Evans

Petrologist

School of Ocean and Earth Science

University of Southampton

United Kingdom

a.evans@southampton.ac.uk

Gilles M. Guérin

Physical Properties/Downhole Measurements Specialist

Lamont-Doherty Earth Observatory

Columbia University

USA

guerin@ldeo.columbia.edu

Michelle Harris

Petrologist

School of Geography, Earth and Environmental Sciences

University of Plymouth

United Kingdom

michelle.harris@plymouth.ac.uk

Victoria M. Hojnacki^†

Sedimentologist

Earth and Environmental Sciences

Montclair State University

USA

hojnackiv1@montclair.edu

Gilbert Hong

Paleomagnetist

School of Earth and Environmental Sciences

Seoul National University

Republic of Korea

hongfellow@snu.ac.kr

Xiaobo Jin^†

Micropaleontologist (nannofossils)

School of Ocean and Earth Science

Tongji University

China

386jinxiaobo@tongji.edu.cn

Mallika Jonnalagadda

Petrologist

Interdisciplinary School of Science

Savitribai Phule Pune University

India

jmallika@gmail.com

Daisuke Kuwano

Paleontologist (nannofossils)

Division of Earth and Environmental Sciences

Chiba University

Japan

dkuwano@chiba-u.jp

Jessica M. Labonte

Microbiologist

Department of Marine Biology

Texas A&M University at Galveston

USA

labontej@tamug.edu

Adriane R. Lam^†

Micropaleontologist (planktic foraminifera)

Department of Geological Sciences and Environmental Studies

Binghamton University

USA

alam@binghamton.edu

Marcin Latas

Paleontologist (planktic foraminifera)

Earth Sciences

University College London

United Kingdom

marcin.latas@ucl.ac.uk

Wanyi Lu

Physical Properties Specialist/Stratigraphic Correlator

Department of Geology and Geophysics

Woods Hole Oceanographic Institution

USA

wlu@whoi.edu

Paul Moal-Darrigade

Sedimentologist

UMR EPOC Oceanic and Continental Environments and Paleoenvironments

University of Bordeaux

France

paul.moal@u-bordeaux.fr

Stephen F. Pekar

Sedimentologist

School of Earth and Environmental Sciences

Queens College (CUNY)

USA

stephen.pekar@qc.cuny.edu

Claudio Robustelli Test

Paleomagnetist

Department of Earth Sciences

University of Torino

Italy

claudio.robustellite@edu.unito.it

Jeffrey G. Ryan

Inorganic Geochemist

School of Geosciences

University of South Florida, Tampa

USA

ryan@mail.usf.edu

Danielle Santiago Ramos

Inorganic Geochemist

Department of Marine and Coastal Sciences

Rutgers University, New Brunswick

USA

santiagoramos@marine.rutgers.edu

Alina Shchepetkina

Sedimentologist

Instituto Dom Luiz

University of Lisbon

Portugal

ashchepetkina@fc.ul.pt

Alexandra Villa

Inorganic/Organic Geochemist

Department of Geoscience

University of Wisconsin-Madison

USA

avilla2@wisc.edu

Shu Ying Wee

Microbiologist/Organic Geochemist

Department of Oceanography

Texas A&M University

USA

s66z977@tamu.edu

Sarah J. Widlansky

Physical Properties Specialist

Department of Earth Sciences

University of New Hampshire

USA

sarah.widlansky@unh.edu

GuoLiang Zhang^‡

Petrologist

Institute of Oceanology

Chinese Academy of Sciences

China

zhangguoliang@qdio.ac.cn

Expedition 393 outreach

Tessa Lund Peixoto

Outreach Officer

JVS Boston

USA

tessa.peixoto@gmail.com

*Affiliations at time of expedition, except where updated by participants.
†Shore-based participant.
‡Shore-based science party member.

---

Operational and technical staff

Siem Offshore AS officials

Expedition 390C

Harm Cornelis Theodoor Nienhuis

Master of the Drilling Vessel

Curtis Wayne Lambert Jr.

Drilling Supervisor

Expedition 395E

Jake Robinson

Master of the Drilling Vessel

Mark Robinson

Drilling Supervisor

Expedition 390

Jake Robinson

Master of the Drilling Vessel

Mark Robinson

Drilling Supervisor

Expedition 393

Thomas Hartt

Master of the Drilling Vessel

Wayne Lambert

Drilling Supervisor

JRSO shipboard personnel and technical representatives

Expedition 390C

Alexis Armstrong

Marine Laboratory Specialist

Heather Barnes

Assistant Laboratory Officer

James Brattin

Applications Developer

Michael Cannon

Marine Computer Specialist

Etienne Claassen

Marine Instrumentation Specialist

Clayton Furman

Logging Engineer (Schlumberger)

Luan Heywood

Marine Laboratory Specialist

Sarah Kachovich

Marine Laboratory Specialist

Jurie Kotze

Marine Instrumentation Specialist

Brittany Martinez

Curatorial Specialist

Stephen Midgley

Operations Superintendent

Eric Moortgat

Assistant Laboratory Officer

Kerry Mullins

Marine Computer Specialist

Jenna Patten

Marine Laboratory Specialist

Chieh Peng

Laboratory Officer

Vincent Percuoco

Marine Laboratory Specialist

Doris Piñero Lajas

Marine Laboratory Specialist

Alexander Roth

Marine Laboratory Specialist

Johanna Suhonen

Marine Laboratory Specialist

Expedition 395E

Alejandro Avila Santis

Marine Laboratory Specialist

Susan Boehm

Marine Laboratory Specialist

James Brattin

Applications Developer

Aaron de Loach

Assistant Laboratory Officer

Clayton Furman

Logging Engineer (Schlumberger)

Randy Gjesvold

Marine Instrumentation Specialist

Sandra Herrmann

Marine Laboratory Specialist

Mark Higley

Marine Laboratory Specialist

Michael Hodge

Marine Computer Specialist

Carel Lewis

Curatorial Specialist

Daniel Marone

Marine Laboratory Specialist

Aaron Mechler

Marine Laboratory Specialist

Beth Novak

Assistant Laboratory Officer

Bill Rhinehart

Operations Superintendent

Alyssa Stephens

Marine Laboratory Specialist

Brittany Stockmaster

Marine Laboratory Specialist

Steven Thomas

Marine Computer Specialist

Expedition 390

Matthew Allen

Development Engineer

Alejandro Avila Santis

Marine Laboratory Specialist

Timothy Blaisdell

Applications Developer

William Cary

Applications Developer

David Fackler

Marine Computer Specialist

Fabricio Ferreira

Marine Laboratory Specialist

Clayton Furman

Logging Engineer

Randy Gjesvold

Marine Instrumentation Specialist

Sandra Herrmann

Marine Laboratory Specialist

Mark Higley

Marine Laboratory Specialist

Myriam Kars

Marine Laboratory Specialist

Aidan Leetz

Marine Laboratory Specialist

Daniel Marone

Marine Laboratory Specialist

Brittany Martinez

Curatorial Specialist

Aaron Mechler

Marine Laboratory Specialist

Stephen Midgley

Operations Superintendent

Beth Novak

Assistant Laboratory Officer

Chieh Peng

Laboratory Officer

Jessica Riekenberg

Marine Laboratory Specialist

Alyssa Stephens

Publications Specialist

Steven Thomas

Marine Computer Specialist

Garrick Van Rensburg

Marine Instrumentation Specialist

Expedition 393

Heather Barnes

Assistant Laboratory Officer

Erick Bravo

Marine Laboratory Specialist

Michael Cannon

Marine Computer Specialist

Oscar Cavazos

Marine Laboratory Specialist

Bridgette Cervera

Marine Laboratory Specialist

Etienne Claassen

Marine Instrumentation Specialist

Lisa Crowder

Laboratory Officer

Douglas Cummings

Publications Specialist

Kirby Garrett

Logging Engineer (Schlumberger)

Kevin Grigar

Operations Superintendent

Luan Heywood

Marine Laboratory Specialist

Jan Kotze

Marine Instrumentation Specialist

Nick Logan

Marine Computer Specialist

Zenon Mateo

Marine Laboratory Specialist

Mallory Mintz

Marine Laboratory Specialist

Eric Moortgat

Laboratory Officer

Michelle Penkrot

Curatorial Specialist

Doris Lajas

Assistant Laboratory Officer

Alexander Roth

Marine Laboratory Specialist

Johanna Suhonen

Marine Laboratory Specialist

Kara Vadman

Marine Laboratory Specialist

Hai Zhao

Applications Developer

IODP Publication Services staff*

Molly Blaisdell

Production Editor II

Douglas Cummings

Graphics Specialist III

Raleigh Darnell

Production Editor II

Sharon L. Dunn

Editor II

Keith Dupuis

Graphics Specialist II

Anthony Eason

Graphics Specialist II

Patrick H. Edwards

Supervisor of Production

Willow S. Grosz

Editor III

Jennifer Hertzberg

DAM Administrator

Jenni Hesse

Editor IV

Rhonda Kappler

Graphics Specialist IV

Ginny Lowe

Reports Coordinator

Amy McWilliams

Supervisor of Editing

Julie Myers

Production Editor IV

Lorri Peters

Manager of Publication Services

Kenneth Sherar

Production Editor IV

Alyssa Stephens

Graphics Specialist IV

Jean Wulfson

Supervisor of Graphics

*At time of publication.

---

Expedition-related bibliography*

IODP publications

Scientific Prospectus

Coggon, R.M., Christeson, G.L., Sylvan, J.B., Teagle, D.A.H., Estes, E., Williams, T., and Alvarez Zarikian, C.A., 2020. Expedition 390/393 Scientific Prospectus: the South Atlantic Transect. International Ocean Discovery Program. https://doi.org/10.14379/iodp.sp.390393.2020

Coggon, R.M., Sylvan, J.B., Teagle, D.A.H., Reece, J.S., Christeson, G.L., Estes, E.R., and Williams, T., 2022. Expedition 390/393 Scientific Prospectus Addendum: South Atlantic Transect. International Ocean Discovery Program. https://doi.org/10.14379/iodp.sp.390393add.2022

Preliminary Report

Coggon, R.M., Sylvan, J.B., Teagle, D.A.H., Reece, J., Christeson, G.L., Estes, E.R., Williams, T.J., and the Expedition 390 Scientists, 2022. Expedition 390 Preliminary Report: South Atlantic Transect 1. International Ocean Discovery Program. https://doi.org/10.14379/iodp.pr.390.2022

Estes, E.R., Williams, T., Midgley, S., Coggon, R.M., Sylvan, J.B.,Christeson, G.L., Teagle, D.A.H., and the Expedition 390C Scientists, 2021. Expedition 390C Preliminary Report: South Atlantic Transect Reentry Systems. International Ocean Discovery Program. https://doi.org/10.14379/iodp.pr.390C.2021

Teagle, D.A.H., Reece, J., Coggon, R.M., Sylvan, J.B., Christeson, G.L., Williams, T.J., Estes, E.R., and the Expedition 393 Scientists, 2023. Expedition 393 Preliminary Report: South Atlantic Transect 2. International Ocean Discovery Program. https://doi.org/10.14379/iodp.pr.393.2023

Williams, T., Estes, E.R., Rhinehart, B., Coggon, R.M., Sylvan, J.B., Christeson, G.L., and Teagle, D.A.H., 2021. Expedition 395E Preliminary Report: Complete South Atlantic Transect Reentry Systems. International Ocean Discovery Program. https://doi.org/10.14379/iodp.pr.395E.2021

Proceedings volume

Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, 2024. South Atlantic Transect. Proceedings of the International Ocean Discovery Program, 390/393: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.390393.2024

Expedition reports

Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., Aizawa, M., Albers, E., Amadori, C., Belgrano, T.M., Borrelli, C., Bridges, J.D., Carter, E.J., D'Angelo, T., Dinarès-Turell, J., Doi, N., Estep, J.D., Evans, A., Gilhooly, W.P., III, Grant, L.J.C., Guérin, G.M., Harris, M., Hojnacki, V.M., Hong, G., Jin, X., Jonnalagadda, M., Kaplan, M.R., Kempton, P.D., Kuwano, D., Labonte, J.M., Lam, A.R., Latas, M., Lowery, C.M., Lu, W., McIntyre, A., Moal-Darrigade, P., Pekar, S.F., Robustelli Test, C., Routledge, C.M., Ryan, J.G., Santiago Ramos, D., Shchepetkina, A., Slagle, A.L., Takada, M., Tamborrino, L., Villa, A., Wang, Y., Wee, S.Y., Widlansky, S.J., Yang, K., Kurz, W., Prakasam, M., Tian, L., Yu, T., and Zhang, G., 2024. Expedition 390/393 summary. In Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, South Atlantic Transect. Proceedings of the International Ocean Discovery Program, 390/393: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.390393.101.2024

Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., Aizawa, M., Albers, E., Amadori, C., Belgrano, T.M., Borrelli, C., Bridges, J.D., Carter, E.J., D'Angelo, T., Dinarès-Turell, J., Doi, N., Estep, J.D., Evans, A., Gilhooly, W.P., III, Grant, L.J.C., Guérin, G.M., Harris, M., Hojnacki, V.M., Hong, G., Jin, X., Jonnalagadda, M., Kaplan, M.R., Kempton, P.D., Kuwano, D., Labonte, J.M., Lam, A.R., Latas, M., Lowery, C.M., Lu, W., McIntyre, A., Moal-Darrigade, P., Pekar, S.F., Robustelli Test, C., Routledge, C.M., Ryan, J.G., Santiago Ramos, D., Shchepetkina, A., Slagle, A.L., Takada, M., Tamborrino, L., Villa, A., Wang, Y., Wee, S.Y., Widlansky, S.J., Yang, K., Kurz, W., Prakasam, M., Tian, L., Yu, T., and Zhang, G., 2024. Expedition 390/393 methods. In Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, South Atlantic Transect. Proceedings of the International Ocean Discovery Program, 390/393: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.390393.102.2024

Coggon, R.M., Sylvan, J.B., Estes, E.R., Teagle, D.A.H., Reece, J., Williams, T.J., Christeson, G.L., Aizawa, M., Borrelli, C., Bridges, J.D., Carter, E.J., Dinarès-Turell, J., Estep, J.D., Gilhooly, W.P., III, Grant, L.J.C., Kaplan, M.R., Kempton, P.D., Lowery, C.M., McIntyre, A., Routledge, C.M., Slagle, A.L., Takada, M., Tamborrino, L., Wang, Y., Yang, K., Albers, E., Amadori, C., Belgrano, T.M., D'Angelo, T., Doi, N., Evans, A., Guérin, G.M., Harris, M., Hojnacki, V.M., Hong, G., Jin, X., Jonnalagadda, M., Kuwano, D., Labonte, J.M., Lam, A.R., Latas, M., Lu, W., Moal-Darrigade, P., Pekar, S.F., Robustelli Test, C., Ryan, J.G., Santiago Ramos, D., Shchepetkina, A., Villa, A., Wee, S.Y., Widlansky, S.J., Kurz, W., Prakasam, M., Tian, L., Yu, T., and Zhang, G., 2024. Site U1556. In Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, South Atlantic Transect. Proceedings of the International Ocean Discovery Program, 390/393: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.390393.103.2024

Coggon, R.M., Sylvan, J.B., Estes, E.R., Teagle, D.A.H., Reece, J., Williams, T.J., Christeson, G.L., Aizawa, M., Borrelli, C., Bridges, J.D., Carter, E.J., Dinarès-Turell, J., Estep, J.D., Gilhooly, W.P., III, Grant, L.J.C., Kaplan, M.R., Kempton, P.D., Lowery, C.M., McIntyre, A., Routledge, C.M., Slagle, A.L., Takada, M., Tamborrino, L., Wang, Y., Yang, K., Albers, E., Amadori, C., Belgrano, T.M., D'Angelo, T., Doi, N., Evans, A., Guérin, G.M., Harris, M., Hojnacki, V.M., Hong, G., Jin, X., Jonnalagadda, M., Kuwano, D., Labonte, J.M., Lam, A.R., Latas, M., Lu, W., Moal-Darrigade, P., Pekar, S.F., Robustelli Test, C., Ryan, J.G., Santiago Ramos, D., Shchepetkina, A., Villa, A., Wee, S.Y., Widlansky, S.J., Kurz, W., Prakasam, M., Tian, L., Yu, T., and Zhang, G., 2024. Site U1561. In Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, South Atlantic Transect. Proceedings of the International Ocean Discovery Program, 390/393: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.390393.104.2024

Coggon, R.M., Sylvan, J.B., Estes, E.R., Teagle, D.A.H., Reece, J., Williams, T.J., Christeson, G.L., Aizawa, M., Borrelli, C., Bridges, J.D., Carter, E.J., Dinarès-Turell, J., Estep, J.D., Gilhooly, W.P., III, Grant, L.J.C., Kaplan, M.R., Kempton, P.D., Lowery, C.M., McIntyre, A., Routledge, C.M., Slagle, A.L., Takada, M., Tamborrino, L., Wang, Y., Yang, K., Albers, E., Amadori, C., Belgrano, T.M., D'Angelo, T., Doi, N., Evans, A., Guérin, G.M., Harris, M., Hojnacki, V.M., Hong, G., Jin, X., Jonnalagadda, M., Kuwano, D., Labonte, J.M., Lam, A.R., Latas, M., Lu, W., Moal-Darrigade, P., Pekar, S.F., Robustelli Test, C., Ryan, J.G., Santiago Ramos, D., Shchepetkina, A., Villa, A., Wee, S.Y., Widlansky, S.J., Kurz, W., Prakasam, M., Tian, L., Yu, T., and Zhang, G., 2024. Site U1557. In Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, South Atlantic Transect. Proceedings of the International Ocean Discovery Program, 390/393: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.390393.105.2024

Teagle, D.A.H., Reece, J., Williams, T.J., Coggon, R.M., Sylvan, J.B., Estes, E.R., Christeson, G.L., Albers, E., Amadori, C., Belgrano, T.M., D'Angelo, T., Doi, N., Evans, A., Guérin, G.M., Harris, M., Hojnacki, V.M., Hong, G., Jin, X., Jonnalagadda, M., Kuwano, D., Labonte, J.M., Lam, A.R., Latas, M., Lu, W., Moal-Darrigade, P., Pekar, S.F., Robustelli Test, C., Ryan, J.G., Santiago Ramos, D., Shchepetkina, A., Villa, A., Wee, S.Y., Widlansky, S.J., Aizawa, M., Borrelli, C., Bridges, J.D., Carter, E.J., Dinarès-Turell, J., Estep, J.D., Gilhooly, W.P., III, Grant, L.J.C., Kaplan, M.R., Kempton, P.D., Lowery, C.M., McIntyre, A., Routledge, C.M., Slagle, A.L., Takada, M., Tamborrino, L., Wang, Y., Yang, K., Kurz, W., Prakasam, M., Tian, L., Yu, T., and Zhang, G., 2024. Site U1558. In Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, South Atlantic Transect. Proceedings of the International Ocean Discovery Program, 390/393: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.390393.106.2024

Teagle, D.A.H., Reece, J., Williams, T.J., Coggon, R.M., Sylvan, J.B., Estes, E.R., Christeson, G.L., Albers, E., Amadori, C., Belgrano, T.M., D'Angelo, T., Doi, N., Evans, A., Guérin, G.M., Harris, M., Hojnacki, V.M., Hong, G., Jin, X., Jonnalagadda, M., Kuwano, D., Labonte, J.M., Lam, A.R., Latas, M., Lu, W., Moal-Darrigade, P., Pekar, S.F., Robustelli Test, C., Ryan, J.G., Santiago Ramos, D., Shchepetkina, A., Villa, A., Wee, S.Y., Widlansky, S.J., Aizawa, M., Borrelli, C., Bridges, J.D., Carter, E.J., Dinarès-Turell, J., Estep, J.D., Gilhooly, W.P., III, Grant, L.J.C., Kaplan, M.R., Kempton, P.D., Lowery, C.M., McIntyre, A., Routledge, C.M., Slagle, A.L., Takada, M., Tamborrino, L., Wang, Y., Yang, K., Kurz, W., Prakasam, M., Tian, L., Yu, T., and Zhang, G., 2024. Site U1583. In Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, South Atlantic Transect. Proceedings of the International Ocean Discovery Program, 390/393: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.390393.107.2024

Teagle, D.A.H., Reece, J., Williams, T.J., Coggon, R.M., Sylvan, J.B., Estes, E.R., Christeson, G.L., Albers, E., Amadori, C., Belgrano, T.M., D'Angelo, T., Doi, N., Evans, A., Guérin, G.M., Harris, M., Hojnacki, V.M., Hong, G., Jin, X., Jonnalagadda, M., Kuwano, D., Labonte, J.M., Lam, A.R., Latas, M., Lu, W., Moal-Darrigade, P., Pekar, S.F., Robustelli Test, C., Ryan, J.G., Santiago Ramos, D., Shchepetkina, A., Villa, A., Wee, S.Y., Widlansky, S.J., Aizawa, M., Borrelli, C., Bridges, J.D., Carter, E.J., Dinarès-Turell, J., Estep, J.D., Gilhooly, W.P., III, Grant, L.J.C., Kaplan, M.R., Kempton, P.D., Lowery, C.M., McIntyre, A., Routledge, C.M., Slagle, A.L., Takada, M., Tamborrino, L., Wang, Y., Yang, K., Kurz, W., Prakasam, M., Tian, L., Yu, T., and Zhang, G., 2024. Site U1560. In Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, South Atlantic Transect. Proceedings of the International Ocean Discovery Program, 390/393: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.390393.108.2024

Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., Aizawa, M., Albers, E., Amadori, C., Belgrano, T.M., Borrelli, C., Bridges, J.D., Carter, E.J., D'Angelo, T., Dinarès-Turell, J., Doi, N., Estep, J.D., Evans, A., Gilhooly, W.P., III, Grant, L.J.C., Guérin, G.M., Harris, M., Hojnacki, V.M., Hong, G., Jin, X., Jonnalagadda, M., Kaplan, M.R., Kempton, P.D., Kuwano, D., Labonte, J.M., Lam, A.R., Latas, M., Lowery, C.M., Lu, W., McIntyre, A., Moal-Darrigade, P., Pekar, S.F., Robustelli Test, C., Routledge, C.M., Ryan, J.G., Santiago Ramos, D., Shchepetkina, A., Slagle, A.L., Takada, M., Tamborrino, L., Villa, A., Wang, Y., Wee, S.Y., Widlansky, S.J., Yang, K., Kurz, W., Prakasam, M., Tian, L., Yu, T., and Zhang, G., 2024. Site U1559. In Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, South Atlantic Transect. Proceedings of the International Ocean Discovery Program, 390/393: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.390393.109.2024

Supplementary material

Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, 2024. Supplementary material, https://doi.org/10.14379/iodp.proc.390393supp.2024. In Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, South Atlantic Transect. Proceedings of the International Ocean Discovery Program, 390/393: College Station, TX (International Ocean Discovery Program).

Expedition research results

Amadori, C., Borrelli, C., Christeson, G., Estes, E., Guertin, L., Hertzberg, J., Kaplan, M.R., Koorapati, R.K., Lam, A.R., Lowery, C.M., McIntyre, A., Reece, J., Robustelli Test, C., Routledge, C.M., Standring, P., Sylvan, J.B., Thompson, M., Villa, A., Wang, Y., Wee, S.Y., Williams, T., Yeon, J., Teagle, D.A.H., Coggon, R.M., and the Expedition 390/393 Scientists, 2024. Data report: X-ray fluorescence scanning of sediment cores, IODP Expedition 390/393 Site U1560, South Atlantic Transect. In Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, South Atlantic Transect. Proceedings of the International Ocean Discovery Program, 390/393: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.390393.205.2024

Borrelli, C., Lowery, C.M., McIntyre, A., Routledge, C.M., Williams, T.J., and the Expedition 390/393 Scientists, 2024. Data report: early Eocene–early Oligocene carbon and oxygen stable isotope data of bulk carbonates, IODP Expedition 390/393 Sites U1557 and U1558, South Atlantic Transect. In Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, South Atlantic Transect. Proceedings of the International Ocean Discovery Program, 390/393: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.390393.208.2024

Grant, L.J.C., Evans, A.D., Coggon, R.M., Estep, J.D., McIntyre, A., Slagle, A., Widlansky, S.J., Albers, E., Harris, M., Teagle, D.A.H., Sylvan, J.B., Reece, J.S., and the Expedition 390/393 Scientists, 2024. Data report: high-resolution digital imaging of whole-round hard rocks collected during IODP Expeditions 390C, 395E, 390, and 393, South Atlantic Transect, using a DMT CoreScan3. In Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, South Atlantic Transect. Proceedings of the International Ocean Discovery Program, 390/393: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.390393.209.2024

Jonnalagadda, M.K., Belgrano, T.M., Ryan, J.G., Kempton, P.D., Evans, A.D., Grant, L.J.C., Teagle, D.A.H., Coggon, R.M., Reece, J.S., Sylvan, J.B., Williams, T.J., Estes, E.R., and the Expedition 390/393 Scientists, 2024. Data report: high downhole resolution portable X-ray fluorescence geochemistry of South Atlantic Transect basement cores, IODP Expeditions 390C, 395E, 390, and 393. In Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, South Atlantic Transect. Proceedings of the International Ocean Discovery Program, 390/393: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.390393.210.2024

Lam, A.R., Amadori, C., Borrelli, C., Christeson, G., Estes, E., Guertin, L., Hertzberg, J., Kaplan, M.R., Koorapati, R.K., Lowery, C.M., McIntyre, A., Reece, J.S., Robustelli Test, C., Routledge, C.M., Standring, P., Sylvan, J.B., Thompson, M., Villa, A., Wang, Y., Wee, S.Y., Williams, T., Yeon, J., Teagle, D.A.H., Coggon, R.M., and the Expedition 390/393 Scientists, 2024. Data report: X-ray fluorescence scanning of sediment cores, IODP Expedition 390/393 Site U1583, South Atlantic Transect. In Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, South Atlantic Transect. Proceedings of the International Ocean Discovery Program, 390/393: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.390393.202.2024

Lowery, C.M., Amadori, C., Borrelli, C., Christeson, G., Estes, E., Guertin, L., Hertzberg, J., Kaplan, M.R., Koorapati, R.K., Lam, A.R., McIntyre, A., Reece, J., Robustelli Test, C., Routledge, C.M., Standring, P., Sylvan, J.B., Thompson, M., Villa, A., Wang, Y., Wee, S.Y., Williams, T., Yeon, J., Teagle, D.A.H., Coggon, R.M., and the Expedition 390/393 Scientists, 2024. Data report: X-ray fluorescence scanning of sediment cores, IODP Expedition 390/393 Site U1557, South Atlantic Transect. In Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, South Atlantic Transect. Proceedings of the International Ocean Discovery Program, 390/393: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.390393.201.2024

Robustelli Test, C., Amadori, C., Borrelli, C., Christeson, G., Estes, E., Guertin, L., Hertzberg, J., Kaplan, M.R., Koorapati, R.K., Lam, A.R., Lowery, C.M., McIntyre, A., Reece, J., Routledge, C.M., Standring, P., Sylvan, J.B., Thompson, M., Villa, A., Wang, Y., Wee, S.Y., Williams, T., Yeon, J., Teagle, D.A.H., Coggon, R.M., and the Expedition 390/393 Scientists, 2024. Data report: X-ray fluorescence scanning of sediment cores, IODP Expedition 390/393 Site U1559, South Atlantic Transect. In Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, South Atlantic Transect. Proceedings of the International Ocean Discovery Program, 390/393: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.390393.204.2024

Routledge, C.M., Amadori, C., Borrelli, C., Christeson, G., Estes, E., Guertin, L., Hertzberg, J., Kaplan, M.R., Koorapati, R.K., Lam, A.R., Lowery, C.M., McIntyre, A., Reece, J., Robustelli Test, C., Standring, P., Sylvan, J.B., Thompson, M., Villa, A., Wang, Y., Wee, S.Y., Williams, T., Yeon, J., Teagle, D.A.H., Coggon, R.M., and the Expedition 390/393 Scientists, 2024. Data report: X-ray fluorescence scanning of sediment cores, IODP Expedition 390/393 Site U1561, South Atlantic Transect. In Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, South Atlantic Transect. Proceedings of the International Ocean Discovery Program, 390/393: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.390393.207.2024

Villa, A., Amadori, C., Borrelli, C., Christeson, G., Estes, E., Guertin, L., Hertzberg, J., Kaplan, M.R., Koorapati, R.K., Lam, A.R., Lowery, C.M., McIntyre, A., Reece, J., Robustelli Test, C., Routledge, C.M., Standring, P., Sylvan, J.B., Thompson, M., Wang, Y., Wee, S.Y., Williams, T., Yeon, J., Teagle, D.A.H., Coggon, R.M., and the Expedition 390/393 Scientists, 2024. Data report: X-ray fluorescence scanning of sediment cores, IODP Expedition 390/393 Site U1558, South Atlantic Transect. In Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, South Atlantic Transect. Proceedings of the International Ocean Discovery Program, 390/393: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.390393.203.2024

Wang, Y., Amadori, C., Borrelli, C., Christeson, G., Estes, E., Guertin, L., Hertzberg, J., Kaplan, M.R., Koorapati, R.K., Lam, A.R., Lowery, C.M., McIntyre, A., Reece, J., Robustelli Test, C., Routledge, C.M., Standring, P., Sylvan, J.B., Thompson, M., Villa, A., Wee, S.Y., Williams, T., Yeon, J., and the Expedition 390/393 Scientists, 2024. Data report: X-ray fluorescence scanning of sediment cores, IODP Expedition 390/393 Site U1556, South Atlantic Transect. In Coggon, R.M., Teagle, D.A.H., Sylvan, J.B., Reece, J., Estes, E.R., Williams, T.J., Christeson, G.L., and the Expedition 390/393 Scientists, South Atlantic Transect. Proceedings of the International Ocean Discovery Program, 390/393: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.390393.206.2024

Journals/Books

Christeson, G.L., Reece, R.S., Kardell, D.A., Estep, J.D., Fedotova, A., and Goff, J.A., 2020. South Atlantic transect: variations in oceanic crustal structure at 31°S. Geochemistry, Geophysics, Geosystems, 21(7):e2020GC009017. https://doi.org/10.1029/2020GC009017

Evans, A.D., Coggon, R.M., Harris, M., Carter, E.J., Albers, E., Guérin, G.M., Belgrano, T.M., Jonnalagadda, M., Grant, L.J.C., Kempton, P.D., Sanderson, D.J., Milton, J.A., Henstock, T.J., Alt, J.C., and Teagle, D.A.H., 2025. Ocean crustal veins record dynamic interplay between plate-cooling-induced cracking and ocean chemistry. Earth and Planetary Science Letters, 650:119116. https://doi.org/10.1016/j.epsl.2024.119116

Hojnacki, V., 2024. Onset of Antarctic glaciation at the Eocene-Oligocene transition in the Weddell Sea and its impact on ocean circulation [PhD dissertation]. Montclair State University. https://digitalcommons.montclair.edu/etd/1452/

Kardell, D.A., Zhao, Z., Ramos, E.J., Estep, J., Christeson, G.L., and Reece, R.S., 2021. Tectonic activity near the Rio Grande rise increases fluid flux in old oceanic crust. Geophysical Research Letters, 48(17):e2021GL094624. https://doi.org/10.1029/2021GL094624

Kardell, D.A., Zhao, Z., Ramos, E.J., Estep, J., Christeson, G.L., Reece, R.S., and Hesse, M.A., 2021. Hydrothermal models constrained by fine-scale seismic velocities confirm hydrothermal cooling of 7–63 Ma South Atlantic crust. Journal of Geophysical Research: Solid Earth, 126(6):e2020JB021612. https://doi.org/10.1029/2020JB021612

Shchepetkina, A., Moal-Darrigade, P., Pekar, S., and Williams, T., 2024. Estimating CaCO₃ content based on natural gamma ray (NGR) in deep-ocean sediment cores. Stratigraphy, 21(3):225–242. https://doi.org/10.47894/stra.21.3.00

Villa, A., 2024. Resolving paleoclimate signals and building geoscience community on a dynamic Earth [PhD dissertation]. The University of Wisconsin - Madison, https://www.proquest.com/docview/3097366090

Conferences

Coggon, R.M., Sylvan, J.B., Teagle, D.A.H., Reece, J.S., Estes, E.R., Williams, T., Christeson, G.L., and the South Atlantic Transect IODP Expedition 390 and 393 Scientists, 2022. The South Atlantic Transect: multidisciplinary experiments from ridge crest to margin drilled by joint IODP Expeditions 390/393. Presented at the 2022 American Geophysical Union Fall Meeting, Chicago, IL, 12–16 December 2022.

Coggon, R.M., Sylvan, J.B., Christeson, G.L., Teagle, D.A.H., Estes, E.R., and Williams, T., 2020. Drilling transects to explore the interconnected Earth. Presented at the 2020 American Geophysical Union Fall Meeting, Online, 1–17 December 2020.

Gilhooly, W., III, Kallmeyer, J., Treude, T., WIlbrandt, T., Sylvan, J.B., Estes, E.R., Wang, Y., and the South Atlantic Transect IODP Expedition 390 & 393 Scientists, 2023. Cryptic sulfur cycling in sediments of the South Atlantic Gyre. Presented at the 2023 American Geophysical Union Fall Meeting, San Francisco, CA, 11–15 December 2023.

Harris, M., Carter, E., Evans, A., Albers, E., Belgrano, T., Kempton, P.D., Jonnalagadda, M., Coggon, R.M., Teagle, A.H., Reece, J.S., Sylvan, J.B., Estes, E.R., Williams, T., and the South Atlantic Transect IODP Expedition 390 & 393 Scientists, 2023. Investigating hydrothermal alteration during the aging of ocean crust: insights from the South Atlantic transect IODP Expeditions 390/393. Presented at the 2023 American Geophysical Union Fall Meeting, San Francisco, CA, 11–15 December 2023.

Ryan, J.G., French, J., Walters, K., Santiago-Ramos, D., Jonnalagadda, M., Belgrano, T., Kempton, P.D., Coggon, R.M., Sylvan, J.B., Teagle, D.A.H., Reece, J.S., Williams, T., Estes, E.R., and the South Atlantic Transect IODP Expeditions 390 and 393 Scientists, 2023. Evolving geochemical signatures in slow-spreading ocean crust from 0–61 Ma: insights from recovered basalts of the South Atlantic Transect. Presented at the 2023 American Geophysical Union Fall Meeting, San Francisco, CA, 11–15 December 2023.

Satolli, S., Di Chiara, A.D., and Friedman, S., 2023. Preliminary rock magnetic and anisotropy of magnetic susceptibility results from the Reykjanes Ridge basalts, Atlantic Ocean (IODP Expeditions 384 and 395C). Presented at the EGU General Assembly 2023, Vienna, Austria, 24–28 April 2023. https://doi.org/10.5194/egusphere-egu23-17243

Sylvan, J.B., Estes, E.R., Wang, Y., D’Angelo, T., Wee, S.Y., Labonté, J., Gilhooly, W., III, Santiago, Ramos, D., Villa, A., Wheat, C.G., and the South Atlantic Transect IODP Expedition 390 & 393 Scientists, 2023. Microbial processes indicated by porewater geochemistry along the International Ocean Discovery Program South Atlantic transect. Presented at the 2023 American Geophysical Union Fall Meeting, San Francisco, CA, 11–15 December 2023.

*The Expedition-related bibliography is continually updated online. Please send updates to PubCrd@iodp.tamu.edu.

---

Site map