Marine Fish Productivity Across the Paleocene-Eocene Thermal Maximum

Gaskell, Daniel

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dc.contributor	Bonem, Rena Mae.
dc.contributor	Baylor University.
dc.contributor	Geology.
dc.contributor	Honors College.
dc.creator	Gaskell, Daniel
dc.date	2015-05-28T19:24:32Z
dc.date	2015-05-28T19:24:32Z
dc.date	2015-05-01
dc.date.accessioned	2022-05-18T12:28:53Z
dc.date.available	2022-05-18T12:28:53Z
dc.identifier	http://hdl.handle.net/2104/9352
dc.identifier.uri	http://localhost:8080/xmlui/handle/CUHPOERS/31689
dc.description	The Paleocene-Eocene Thermal Maximum (PETM), a transient global warming event ~55 Ma, is one of the closest geologic analogues to modern-day climate change. Although the PETM is known to have triggered extinctions in deep-sea ecosystems and extensive biogeographic shifts, little work has been done on the response of higher-order marine vertebrates. This work presents mass accumulation data for fossil fish teeth (ichthyoliths) in three ODP/IODP pelagic sediment cores. In all three records, the initial stages of the PETM are associated with a significant transient increase in fish productivity, which may have peaked approximately 10,000 to 15,000 years after the onset of the PETM; the highest resolution data, from the Atlantic, suggests that this increase may have come after a period of significantly depressed productivity. Changes in net primary productivity, as determined from biogenic barium proxies, do not appear sufficient to fully explain the observed trends.
dc.format	application/pdf
dc.format	application/pdf
dc.language	en_US
dc.rights	Baylor University projects are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. Contact libraryquestions@baylor.edu for inquiries about permission.
dc.rights	Worldwide access
dc.subject	Paleocene-Eocene Thermal Maximum.
dc.subject	Ichthyoliths.
dc.subject	Climate change.
dc.subject	Fish productivity.
dc.title	Marine Fish Productivity Across the Paleocene-Eocene Thermal Maximum
dc.type	Thesis