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Magnitude of Middle Miocene warming in North Pacific high latitudes: stable isotope evidence from Kaneharaia (Bivalvia, Dosiniinae)

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Summary:
The Middle Miocene Climatic Optimum (MMCO) at ~ 16 Ma was the warmest interval during the Neogene. The peak of the MMCO in the North Pacific is marked by the appearance of the bivalve genus Kaneharaia (Bivalvia, Dosiniinae) in the high-latitude regions of Kamchatka and Alaska (55 –65°N). Specimens of Kaneharaia sp. were collected from two early middle Miocene high-latitude localities in the North Pacific – the Sea urchin Horizon of northwestern Kamchatka and the Narrow Cape Formation of Alaska. Middle Miocene Kaneharaia specimens were incrementally sampled for oxygen and carbon stable isotope records of seasonality. Results were compared with stable isotope profiles constructed for two Recent species of Dosinia from subtropical waters.
Title: Magnitude of Middle Miocene warming in North Pacific high latitudes: stable isotope evidence from Kaneharaia (Bivalvia, Dosiniinae).
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Name(s): Oleinik, Anton E., creator
Marincovich, Louie, Jr., creator
Barinov, Konstantin B., creator
Swart, Peter K., creator
Type of Resource: text
Genre: Article
Issuance: single unit
Publisher: National Institute of Advanced Industrial Science and Technology
Summary: The Middle Miocene Climatic Optimum (MMCO) at ~ 16 Ma was the warmest interval during the Neogene. The peak of the MMCO in the North Pacific is marked by the appearance of the bivalve genus Kaneharaia (Bivalvia, Dosiniinae) in the high-latitude regions of Kamchatka and Alaska (55 –65°N). Specimens of Kaneharaia sp. were collected from two early middle Miocene high-latitude localities in the North Pacific – the Sea urchin Horizon of northwestern Kamchatka and the Narrow Cape Formation of Alaska. Middle Miocene Kaneharaia specimens were incrementally sampled for oxygen and carbon stable isotope records of seasonality. Results were compared with stable isotope profiles constructed for two Recent species of Dosinia from subtropical waters.
Identifier: 210410 (digitool), FADT210410 (IID), fau:2012 (fedora)
FAU Department/College: Department of Geosciences Charles E. Schmidt College of Science
Note(s): This manuscript is a version of an article published in Bulletin of the Geological Survey of Japan v. 59, no. 7-8, (2008) p. 339-353 http://www.gsj.jp/Pub/Bull_new/vol_59/59_07/59_07_06.pdf
Subject(s): Biogeography--North Pacific Ocean
Mollusks, Fossils--North Pacific Ocean
Sediments (Geology)--North Pacific Ocean
Paleoclimatology--Miocene
Climatic changes--North Pacific Ocean
Persistent Link to This Record: http://purl.flvc.org/fcla/dt/210410
Restrictions on Access: ©2008 National Institute of Advanced Industrial Science and Technology
Host Institution: FAU

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