Reconstructing Pliocene West Pacific Warm Pool Hydroclimate Using In Situ Microanalyses on Fossil Planktic Foraminifer Shells

Wycech, J.; Kelly, D. C.; Fournelle, J.; Kitajima, K.; Kozdon, R.; Orland, I. J.

doi:10.1029/2019pa003772

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Reconstructing Pliocene West Pacific Warm Pool Hydroclimate Using In Situ Microanalyses on Fossil Planktic Foraminifer Shells

2020
By Wycech, J. ; Kelly, D. C. ; Fournelle, J. ; ...
Source: Paleoceanography and Paleoclimatology, 35(7)

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Journal Title:

Paleoceanography and Paleoclimatology
Personal Author:

Wycech, J. ; Kelly, D. C. ; Fournelle, J. ; Kitajima, K. ; Kozdon, R. ; ... More +

Wycech, J. ; Kelly, D. C. ; Fournelle, J. ; Kitajima, K. ; Kozdon, R. ; Orland, I. J. Less -
NOAA Program & Office:

CIRES (Cooperative Institute for Research in Environmental Sciences)
Description:

A controversial aspect of Pliocene (5.3 –2.6 Ma) climate is whether El Niño ‐like (El Padre) conditions, characterized by a reduced trans ‐equatorial sea ‐surface temperature (SST) gradient, prevailed across the Paci ﬁc. Evidence for El Padre is chie ﬂy based on reconstructions of sea ‐surface conditions derived from the oxygen isotope ( δ18O) and Mg/Ca compositions of shells belonging to the planktic foraminifer Trilobatus sacculifer . However, fossil shells of this species are a mixture of multiple carbonate phases —pre‐gametogenic, gametogenic (reproductive), and diagenetic calcites —that formed under different physiological and/or environmental conditions and are averaged in conventionalwhole ‐shell analyses. Through in situ measurements of micrometer ‐scale domains within Pliocene ‐aged
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Atmospheric Science Oceanography Paleontology
Source:

Paleoceanography and Paleoclimatology, 35(7)
DOI:

https://doi.org/10.1029/2019pa003772
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2572-4517;2572-4525;
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American Geophysical Union (AGU)
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Journal Article
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urn:sha256:7dacfe76e679f5a5889409be92d6ed985a69668fefce680a1bb31305eb77730d
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