Skip to main content

International Ocean Discovery Program Expedition 378 Scientific Prospectus Addendum

South Pacific Paleogene Climate1

Deborah J. Thomas

Co-Chief Scientist

College of Geosciences

Texas A&M University


Ursula Röhl

Co-Chief Scientist

MARUM–Center for Marine Environmental Sciences

University of Bremen


Laurel B. Childress

Expedition Project Manager/Staff Scientist

International Ocean Discovery Program

Texas A&M University


Published August 2019

See the full publication in PDF.


This addendum to the International Ocean Discovery Program (IODP) Expedition 378 Scientific Prospectus details changes to the expedition schedule including additional drilling depth approvals and updates to the operations plans that were presented in the original prospectus. In September 2018, Expedition 378 was rescheduled for 2020 to accommodate the construction and installation of two new propellers for the vessel with minimal disruption to the slate of expeditions scheduled in the Southern Ocean. The change in expedition timing resulted in a change of the port of origination from Lyttelton, New Zealand, to Lautoka, Fiji, and a change in the number of transit days. Consequently, the operations schedule has been revised.

The other development prompting an addendum to the Expedition 378 Scientific Prospectus was the approval by the Environmental Protection and Safety Panel (EPSP) to drill deeper at Deep Sea Drilling Project (DSDP) Site 277 than the previous approved maximum depth of 480 meters below seafloor (mbsf) (now approved to 670 mbsf).

1Thomas, D.J., Röhl, U., and Childress, L.B., 2019. Expedition 378 Scientific Prospectus Addendum: South Pacific Paleogene Climate. International Ocean Discovery Program.​10.14379/​iodp.sp.378add.2019

This work is distributed under the Creative Commons Attribution 4.0 International (CC BY 4.0) license.