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Data report: revised composite depth scale and splice for IODP Site U14061

Tim E. van Peer,2 Diederik Liebrand,2 Chuang Xuan,2 Peter C. Lippert,3 Claudia Agnini,4, 5 Nevin Blum,6 Peter Blum,6 Steven M. Bohaty,2 Paul R. Bown,7 Rosanna Greenop,2, 8 Wendy E.C. Kordesch,2 Dominik Leonhardt,9 Oliver Friedrich,10 and Paul A. Wilson2


Integrated Ocean Drilling Program (IODP) Expedition 342 recovered exceptional Paleogene to early Neogene sedimentary archives from clay-rich sediments in the northwest Atlantic Ocean. These archives present an opportunity to study Cenozoic climate in a highly sensitive region at often unprecedented resolution. Such studies require continuous records in the depth and time domains. Using records from multiple adjacent drilled holes, intervals within consecutive cores are typically spliced into a single composite record on board the R/V JOIDES Resolution using high-resolution physical properties data sets acquired before the cores are split. The highly dynamic nature of the sediment drifts drilled during Expedition 342 and the modest amplitude of variance in the physical property records made it possible to construct only highly tentative initial working splices, which require extensive postexpedition follow-up work. Postexpedition, high-resolution X-ray fluorescence (XRF) core scanning data enabled the construction of a preliminary composite depth scale and splice. Here, we present the revised composite depth scale and splice for IODP Site U1406, predominantly constructed using detailed hole-to-hole correlations of newly generated high-resolution XRF data and revisions of the initial XRF data set. The revised composite depth scale and splice serve as a reference framework for future research on Site U1406 sediments.

1 van Peer, T.E., Liebrand, D., Xuan, C., Lippert, P.C., Agnini, C., Blum, N., Blum, P., Bohaty, S.M., Bown, P.R., Greenop, R., Kordesch, W.E.C., Leonhardt, D., Friedrich, O., and Wilson, P.A., 2017. Data report: revised composite depth scale and splice for IODP Site U1406. In Norris, R.D., Wilson, P.A., Blum, P., and the Expedition 342 Scientists, Proceedings of the Integrated Ocean Drilling Program, 342: College Station, TX (Integrated Ocean Drilling Program).

2 Ocean and Earth Science, University of Southampton, Southampton SO14 3ZH, UK. Correspondence author:

3 Department of Geology & Geophysics, University of Utah, Salt Lake City UT 84112, USA.

4 Department of Geosciences, University of Padova, 35131 Padova, Italy.

5 Department of Geological Sciences, Stockholm University, 106 91 Stockholm, Sweden.

6 International Ocean Discovery Program, Texas A&M University, College Station TX 77845, USA.

7 Department of Earth Sciences, University College London, London WC1E 6BT, UK.

8 School of Geography & Geosciences, Earth Sciences, St. Andrews KY16 9AL, UK.

9 Institute of Geosciences, Goethe-Universität Frankfurt, 60438 Frankfurt, Germany.

10 Institute of Earth Sciences, Ruprecht-Karls-Universität Heidelberg, 69120 Heidelberg, Germany.

Initial receipt: 26 February 2016
Acceptance: 9 May 2017
Publication: 31 July 2017
MS 342-202