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Core alignment and composite depth scale for the lower Paleogene through uppermost Cretaceous interval at Deep Sea Drilling Project Site 577
Stockholm University, Faculty of Science, Department of Geological Sciences.
Stockholm University, Faculty of Science, Department of Geological Sciences.
2013 (English)In: Newsletters on stratigraphy, ISSN 0078-0421, Vol. 46, no 1, 47-68 p.Article in journal (Refereed) Published
Abstract [en]

Deep Sea Drilling Project Site 577 on Shatsky Rise (North Pacific Ocean) recovered a series of cores at three holes that contain calcareous nannofossil ooze of latest Cretaceous (late Maastrichtian) through early Eocene age. Several important records have been generated using samples from these cores, but the stratigraphy has remained outdated and confusing. Here we revise the stratigraphy at Site 577. This includes refining several age datums, realigning cores in the depth domain, and placing all stratigraphic markers on a current time scale. The work provides a template for appropriately bringing latest Cretaceous and Paleogene data sets at old drill sites into current paleoceanographic literature for this time interval. While the Paleocene Eocene Thermal Maximum (PETM) lies within core gaps at Holes 577* and 577A, the sedimentary record at the site holds other important events and remains crucially relevant to understanding changes in oceanographic conditions from the latest Cretaceous through early Paleogene.

Place, publisher, year, edition, pages
2013. Vol. 46, no 1, 47-68 p.
Keyword [en]
Maastrichtian, Paleocene, Eocene, composite depth, nannofossils, carbon isotopes
National Category
Geology
Identifiers
URN: urn:nbn:se:su:diva-92149DOI: 10.1127/0078-0421/2013/0027ISI: 000320495300003OAI: oai:DiVA.org:su-92149DiVA: diva2:637735
Note

AuthorCount:2;

Available from: 2013-07-22 Created: 2013-07-19 Last updated: 2017-12-06Bibliographically approved

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