Planktonic foraminiferal faunas of the equatorial Pacific suggest Early Miocene origin of present oceanic circulation.

G. Keller

doi:10.1016/0377-8398(81)90009-1

Planktonic foraminiferal faunas of the equatorial Pacific suggest Early Miocene origin of present oceanic circulation.

G. Keller

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Quantitative planktonic foraminiferal analyses of L Miocene sections reveal a hiatus encompassing part of foraminiferal Zones N6 to N7 marking the extinction of Oligocene faunas that survived into the Early Miocene. This faunal event is marked by a cooling reflected in the O isotope record and appears to mark the introduction of cool Antarctic bottom water into the Pacific basin due to the opening of the Drake Passage that allowed deep circum-Antarctic circulation by about 22-25 Ma.-from Author

Original language	English (US)
Pages (from-to)	269-295
Number of pages	27
Journal	Marine Micropaleontology
Volume	6
Issue number	3
DOIs	https://doi.org/10.1016/0377-8398(81)90009-1
State	Published - 1981

All Science Journal Classification (ASJC) codes

Oceanography
Palaeontology

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10.1016/0377-8398(81)90009-1

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title = "Planktonic foraminiferal faunas of the equatorial Pacific suggest Early Miocene origin of present oceanic circulation.",

abstract = "Quantitative planktonic foraminiferal analyses of L Miocene sections reveal a hiatus encompassing part of foraminiferal Zones N6 to N7 marking the extinction of Oligocene faunas that survived into the Early Miocene. This faunal event is marked by a cooling reflected in the O isotope record and appears to mark the introduction of cool Antarctic bottom water into the Pacific basin due to the opening of the Drake Passage that allowed deep circum-Antarctic circulation by about 22-25 Ma.-from Author",

author = "G. Keller",

note = "Funding Information: Project. This research was supported by NSF Grant OCE 76-82181 and OCE 79-18285 (CENOP). I am grateful to E. Vincent for reviewing this manuscript, and her criticisms and suggestions for improvements.",

year = "1981",

doi = "10.1016/0377-8398(81)90009-1",

language = "English (US)",

volume = "6",

pages = "269--295",

journal = "Marine Micropaleontology",

issn = "0377-8398",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Planktonic foraminiferal faunas of the equatorial Pacific suggest Early Miocene origin of present oceanic circulation.

AU - Keller, G.

N1 - Funding Information: Project. This research was supported by NSF Grant OCE 76-82181 and OCE 79-18285 (CENOP). I am grateful to E. Vincent for reviewing this manuscript, and her criticisms and suggestions for improvements.

PY - 1981

Y1 - 1981

N2 - Quantitative planktonic foraminiferal analyses of L Miocene sections reveal a hiatus encompassing part of foraminiferal Zones N6 to N7 marking the extinction of Oligocene faunas that survived into the Early Miocene. This faunal event is marked by a cooling reflected in the O isotope record and appears to mark the introduction of cool Antarctic bottom water into the Pacific basin due to the opening of the Drake Passage that allowed deep circum-Antarctic circulation by about 22-25 Ma.-from Author

AB - Quantitative planktonic foraminiferal analyses of L Miocene sections reveal a hiatus encompassing part of foraminiferal Zones N6 to N7 marking the extinction of Oligocene faunas that survived into the Early Miocene. This faunal event is marked by a cooling reflected in the O isotope record and appears to mark the introduction of cool Antarctic bottom water into the Pacific basin due to the opening of the Drake Passage that allowed deep circum-Antarctic circulation by about 22-25 Ma.-from Author

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VL - 6

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EP - 295

JO - Marine Micropaleontology

JF - Marine Micropaleontology

IS - 3

ER -

Planktonic foraminiferal faunas of the equatorial Pacific suggest Early Miocene origin of present oceanic circulation.

Abstract

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