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U-Th dating and diagenesis of Pleistocene highstand sediments from the Bahamas slope

Abstract:

We have performed U-Th isotope analyses on pure aragonite samples from the upper sections of Leg 166 cores to assign each aragonite-rich sediment package to the correct sea-level highstand. The uppermost sediment package from each of the four sites investigated (Sites 1003, 1005, 1006, and 1007) yielded a Holocene U-Th age. Sediment packages from deeper in the cores have suffered diagenesis. This diagenesis consists of significant U loss (up to 40%) in the site nearest the platform (Site 1005...

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Institution:
University of Oxford
Department:
Oxford, MPLS, Earth Sciences
Role:
Author
Journal:
Proceedings of the Ocean Drilling Program: Scientific Results
Volume:
166
Pages:
23-31
Publication date:
2000-01-01
ISSN:
0884-5891
URN:
uuid:290ede5d-5c25-48e7-81fe-1a3afe97cec3
Source identifiers:
83345
Local pid:
pubs:83345
Language:
English

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