Postcruise examination of the data splice for International Ocean Discovery Program Expedition 378 Site U1553, in light of new X-ray fluorescence data, revealed three cores from Hole U1553E that were misaligned. These cores have been shifted to fill in some gaps in the original splice

Drury, AJ

Röhl, U

Westerhold, T

Wilkens, RH

English

UCL Discovery

https://doi.org/10.14379/iodp.proc.378.201.2022 publications.iodp.org · 1Contents1 Abstract1 Introduction1 Results1 Acknowledgments1 ReferenceKeywordsInternational Ocean Discovery Program, IODP, JOIDES Resolution, Expedition 378, South Pacific Paleogene Climate, Site U1553MS 378-201Received 19 February 2022Accepted 12 April 2022Published 30 June 2022Röhl, U., Thomas, D.J., Childress, L.B., and the Expedition 378 ScientistsProceedings of the International Ocean Discovery Program Volume 378publications.iodp.orgData report: splice adjustment for Site U15531A.J. Drury,2 T. Westerhold,3 R.H. Wilkens,4 and U. Röhl31 Drury, A.J., Westerhold, T., Wilkens, R.H., and Röhl, U., 2022. Data report: splice adjustment for Site U1553. In Röhl, U., Thomas, D.J., Childress, L.B., and the Expedition 378 Scientists. South Pacific Paleogene Climate. Proceedings of the International Ocean Discovery Program, 378: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.378.201.20222 Department of Earth Sciences, University College London, United Kingdom. 3 MARUM—Center for Marine Environmental Sciences, University of Bremen, Germany.4 School of Ocean and Earth Science and Technology, University of Hawaii, USA. rwilkens@hawaii.eduAbstractPostcruise examination of the data splice for International Ocean Discovery Program Expedition378 Site U1553, in light of new X-ray fluorescence data, revealed three cores from Hole U1553Ethat were misaligned. These cores have been shifted to fill in some gaps in the original splice.1. IntroductionPostcruise examination of the data splice for International Ocean Discovery Program Expedition378 Site U1553, in light of new X-ray fluorescence data, revealed three cores from Hole U1553Ethat were misaligned. These cores have been shifted to fill in some gaps in the original splice (Röhlet al., 2022) where Hole U1553B cores had originally been appended.2. ResultsThe offset for Core 378-U1553E-21X was shifted deeper by 4.63 m, Core 22X was shifted deeperby 4.75 m, and Core 23X was shifted deeper by 3.92 m. No other cores were shifted, so depths ofsamples taken from other cores need no adjustment. A comparison of the original splice to therevised splice is illustrated in Figure F1 and overlays of the original and shifted X-ray fluorescencedata are presented in Figure F2. The original offsets of the three cores of Hole U1553E made theirinclusion in the splice problematic. Shifting the three cores allowed for a new splice to be con-structed that fills some gaps in the original splice where Hole U1553B cores had been appended.These corrections create a more continuous splice in the latest Eocene around the Eocene–Oligocene transition.Revised offsets are presented in Table T1, and revised splice intervals are presented in Table T2.3. AcknowledgmentsThis research used samples and/or data provided by the International Ocean Discovery Program(IODP). Funding for this research was provided by the U.S. Science Support Program, IODP.ReferenceRöhl, U., Thomas, D.J., Childress, L.B., Anagnostou, E., Ausín, B., Borba Dias, B., Boscolo-Galazzo, F., Brzelinski, S., Dunlea, A.G., George, S.C., Haynes, L.L., Hendy, I.L., Jones, H.L., Khanolkar, S.S., Kitch, G.D., Lee, H., Raffi, I., Reis, A.J., Sheward, R.M., Sibert, E., Tanaka, E., Wilkens, R., Yasukawa, K., Yuan, W., Zhang, Q., Zhang, Y., Drury, A.J., and Hollis, C.J., 2022. Site U1553. In Röhl, U., Thomas, D.J., Childress, L.B., and the Expedition 378 Scientists, South Pacific Paleogene Climate. Proceedings of the International Ocean Discovery Program, 378: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.378.103.2022A.J. Drury et al. · Data report: splice adjustment for Site U1553 IODP Proceedings Volume 378Ba/Sr225220215210205200195190185180175Depth CCSF (m)Depth CCSF (m)Ba/SrBa/Sr0.150.100.050.000.150.100.050.000.150.100.050.000.200.150.100.050.00SpliceU1553AU1553BU1553ESplice U1553A-22F  U1553A-23X  U1553A-21F  U1553A-24X  U1553A-25X  U1553A-26X  U1553B-25X  U1553B-24X  U1553B-23X  U1553B-22X  U1553B-20X  U1553B-21X  U1553E-24X  U1553E-23X  U1553E-22X  U1553E-20X  U1553E-21X Ba/Sr225220215210205200195190185180175Ba/SrBa/Sr0.150.100.050.000.150.100.050.000.150.100.050.000.200.150.100.050.00SpliceU1553AU1553BU1553ESplice U1553A-22F  U1553A-23X  U1553A-21F  U1553A-24X  U1553A-25X  U1553A-26X  U1553B-25X  U1553B-24X  U1553B-23X  U1553B-22X  U1553B-20X  U1553B-21X  U1553E-24X  U1553E-23X  U1553E-22X  U1553E-20X  U1553E-21X Original offsetsRevised offsetsFigure F1. Original offsets versus revised offsets, Holes U1553A, U1553B, and U1553E. CCSF = core composite depth below seafloor.https://doi.org/10.14379/iodp.proc.378.201.2022 publications.iodp.org · 2A.J. Drury et al. · Data report: splice adjustment for Site U1553 IODP Proceedings Volume 378Ba/Sr225220215210205200195190185180175Depth CCSF (m)0.180.160.140.120.100.080.060.180.160.140.120.100.080.06Ba/SrOriginal offsetsRevised offsets U1553A U1553B U1553EFigure F2. Shifted X-ray fluorescence data, Holes U1553A, U1553B, and U1553C. CCSF = core composite depth below seafloor.Table T1. Revised offsets, Site U1553. Download table in CSV format. Table T2. Revised splice intervals, Site U1553. Download table in CSV format.https://doi.org/10.14379/iodp.proc.378.201.2022 publications.iodp.org · 3

Data report: splice adjustment for Site U1553

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Data report: splice adjustment for Site U1553

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