noaa-ocean-2631
Paleocene-Eocene Thermal Maximum (~55 Million years ago ) Planktonic Foram Assemblages
Kelly, D.C.
Paleocene-Eocene Thermal Maximum (~55 Million years ago ) Planktonic Foram Assemblages
2002-07-01
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/2631
Investigator
D.C.
Kelly
earth science
paleoclimate
paleoceanography
identified foraminifer,null,null,percent,null,paleoceanography,null,null,N,Morozovella sp.
earth science
paleoclimate
paleoceanography
identified foraminifer,null,null,percent,null,paleoceanography,null,null,N,Acarinina coalingensis
earth science
paleoclimate
paleoceanography
identified foraminifer,null,null,percent,null,paleoceanography,null,null,N,Acarinina wilcoxensis
earth science
paleoclimate
paleoceanography
identified foraminifer,null,null,percent,null,paleoceanography,null,null,N,Subbotina sp.
earth science
paleoclimate
paleoceanography
identified foraminifer,null,null,percent,null,paleoceanography,null,null,N,Acarinina praepentacamerata
earth science
paleoclimate
paleoceanography
identified foraminifer,null,null,percent,null,paleoceanography,null,null,N,Acarinina subsphaerica
earth science
paleoclimate
paleoceanography
identified foraminifer,null,null,percent,null,paleoceanography,null,null,N,Acarinina sp. robust form
earth science
paleoclimate
paleoceanography
identified foraminifer,null,null,percent,null,paleoceanography,null,null,N,Chiloguembelina trinitatensis >180 microns
earth science
paleoclimate
paleoceanography
identified foraminifer,null,null,percent,null,paleoceanography,null,null,N,Acarinina nitida
earth science
paleoclimate
paleoceanography
identified foraminifer,null,null,percent,null,paleoceanography,null,null,N,Globocassidulina obtusa
earth science
paleoclimate
paleoceanography
identified foraminifer,null,null,percent,null,paleoceanography,null,null,N,Acarinina mckannai
earth science
paleoclimate
paleoceanography
identified foraminifer,null,null,percent,null,paleoceanography,null,null,N,Acarinina soldadoensis
earth science
paleoclimate
paleoceanography
identified foraminifer,null,null,percent,null,paleoceanography,null,null,N,Subbotina patagonica
earth science
paleoclimate
paleoceanography
depth,null,null,centimeter,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
identified foraminifer,null,null,percent,null,paleoceanography,null,null,N,Parasubbotina varianta
earth science
paleoclimate
paleoceanography
notes,null,null,null,null,paleoceanography,null,null,N,Number of specimans
earth science
paleoclimate
paleocean
other
earth science
paleoclimate
paleocean
population abundance
geoscientificInformation
cal yr BP
cal yr BP
Complete
-65.16
-65.16
1.2
1.2
-2914
-2914
Ocean
Atlantic Ocean
South Atlantic Ocean
ODP 690B>LATITUDE -65.16>LONGITUDE 1.2
None
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English
DOC/NOAA/NESDIS/NCEI
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
https://www.ncdc.noaa.gov/data-access/paleoclimatology-data
DATA Center Contact
Bruce
Bauer
bruce.a.bauer@noaa.gov
paleo@noaa.gov
303-497-6280
303-497-6513
325 Broadway, E/NE31
Boulder
CO
80305-3328
USA
online
ASCII
Kelly, D.C. 2002. Response of Antarctic (ODP Site 690) planktonic foraminifera to the Paleocene-Eocene thermal maximum: Faunal evidence for ocean/climate change. Paleoceanography 17(4), 1071.
High-resolution study of Antarctic planktonic foraminiferal assemblages (Ocean Drilling Program Site 690, Weddell Sea) shows that these microplankton underwent a stepwise series of changes during the Paleocene-Eocene thermal maximum (PETM). Initiation of this response coincides with the onset of the carbon isotope excursion (CIE) but precedes the benthic foraminiferal mass extinction. The ""top-to-bottom"" succession in the biotic response indicates that the surface ocean/atmosphere was affected before the deep sea. The earliest stage of the faunal response entailed a conspicuous turnover within the shallow-dwelling genus Acarinina and a succession of stratigraphic first appearances. The genus Morozovella, large (>180 ĩm) biserial planktonics, and A. wilcoxensis are all restricted to the lower CIE within this PETM section. Acarininid populations crashed as the ocean/climate system ameliorated during the CIE recovery, reflecting atypical surface water conditions. This transient decline in acarininids is paralleled by a marked increase in carbonate content of sediments. It is postulated that this interval of carbonate enrichment, and its unusual microfauna, reflects enhanced carbon storage within reservoirs of the global carbon cycle other than the marine carbonate system [sensu Broecker et al., 1993 ; Ravizza et al., 2001 ].
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/kelly2002
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/odp690b-tab.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11