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Title: Data report: X-ray fluorescence scanning of sediment cores, IODP Expedition 390/393 Site U1556, South Atlantic Transect
International Ocean Discovery Program (IODP) Site U1556, located on a basement high above Site U1557, is one of the oldest sites drilled on the South Atlantic Transect with a basement age of ~61 Ma. Here, we present semiquantitative X-ray fluorescence core scan data from the Site U1556 splice and compare them with shipboard magnetic susceptibility and natural gamma ray (NGR) measurements to characterize elemental composition changes downcore. Elements primarily associated with detrital (e.g., Al, Fe, K, Ti, and Zr) and biogenic (e.g., Ca) sources are inversely correlated. Biogenic and detrital sourced elements vary synchronously with magnetic susceptibility and NGR measurements following alternations between silty clay and calcareous nannofossil ooze/chalk in Unit I, whereas biogenic sourced elements tend to dominate Unit II, corresponding to a lithology change to predominantly calcareous nannofossil ooze/chalk.  more » « less
Award ID(s):
1326927
PAR ID:
10501116
Author(s) / Creator(s):
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more » ; ; « less
Publisher / Repository:
International Ocean Discovery Program
Date Published:
Journal Name:
Proceedings of the International Ocean Discovery Program Expedition reports
Volume:
390/393
Issue:
206
ISSN:
2377-3189
Subject(s) / Keyword(s):
International Ocean Discovery Program IODP JOIDES Resolution Expedition 390 Expedition 393 Expedition 390C Expedition 395E South Atlantic Transect Mid-Atlantic Ridge Site U1556 X-ray fluorescence core scanning XRF Paleocene Eocene Oligocene Miocene Pliocene Pleistocene
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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