LGM, planktic foraminifera (EPILOG version)

Hans-Stefan Niebler; Helge Wolfgang Arz; Barbara Donner; Stefan Mulitza; Jürgen Pätzold; Gerold Wefer

doi:10.1594/pangaea.57027

LGM, planktic foraminifera (EPILOG version)

Citation

Niebler H, Arz H W, Donner B, Mulitza S, Pätzold J, Wefer G (2000). LGM, planktic foraminifera (EPILOG version). PANGAEA - Data Publisher for Earth & Environmental Science. Occurrence dataset https://doi.org/10.1594/pangaea.57027 accessed via GBIF.org on 2024-12-14.

Description

[1] We used planktic foraminiferal assemblages in 70 sediment cores from the tropical and subtropical South Atlantic Ocean (10°N–37°S) to estimate annual mean sea surface temperatures (SSTs) and seasonality for the Last Glacial Maximum with a modified version of the Imbrie-Kipp transfer function method (IKTF) that takes into account the abundance of rare but temperature sensitive species. In contrast to CLIMAP Project Members [1981], the reconstructed SSTs indicate cooler glacial SSTs in the entire tropical/subtropical South Atlantic with strongest cooling in the upwelling region off Namibia (7–10°C) and smallest cooling (1–2°C) in the western subtropical gyre. In the western Atlantic, our data support recent temperature estimates from other proxies. In the upwelling regions in the eastern Atlantic, our data conflict with SST reconstructions from alkenones, which may be due to an environmental preference of the alkenone-producing algae or to an underestimation of foraminiferal SSTs due to anomalous high abundances of N. pachyderma (sinistral).

Taxonomic Coverages

Chromista
rank: kingdom
Foraminifera
rank: kingdom

Geographic Coverages

Event: GeoB1008-3, Angola Basin ; Event: GeoB1016-3, Angola Basin ; Event: GeoB1028-5, Walvis Ridge, Southeast Atlantic Ocean ; Event: GeoB1031-4, Walvis Ridge, Southeast Atlantic Ocean ; Event: GeoB1032-3, Angola Basin ; Event: GeoB1034-3, Angola Basin ; Event: GeoB1041-3, Angola Basin ; Event: GeoB1101-5, Guinea Basin ; Event: GeoB1105-4, Equatorial Atlantic ; Event: GeoB1112-4, Equatorial Atlantic ; Event: GeoB1115-4, Brazil Basin ; Event: GeoB1117-2, Brazil Basin ; Event: GeoB1214-1, Cape Basin ; Event: GeoB1220-1, Walvis Ridge ; Event: GeoB1306-1, Hunter Channel ; Event: GeoB1309-2, Eastern Rio Grande Rise ; Event: GeoB1312-2, Eastern Rio Grande Rise ; Event: GeoB1413-4, West Angola Basin ; Event: GeoB1417-1, Mid Atlantic Ridge ; Event: GeoB1419-2, East Brazil Basin ; Event: GeoB1501-4, Brazil Basin ; Event: GeoB1503-1, Brazil Basin ; Event: GeoB1505-1, Brazil Basin ; Event: GeoB1508-4, Brazil Basin ; Event: GeoB1515-1, Amazon Fan ; Event: GeoB1523-1, Amazon Fan ; Event: GeoB1701-4, Niger Sediment Fan ; Event: GeoB1706-2, Walvis Ridge ; Event: GeoB1711-4, Namibia continental slope ; Event: GeoB1722-1, Namibia continental slope ; Event: GeoB1903-3, Mid Atlantic Ridge ; Event: GeoB1905-3, Mid Atlantic Ridge ; Event: GeoB2004-2, South African margin ; Event: GeoB2016-1, Southwest Walvis Ridge ; Event: GeoB2019-1, Angola Basin ; Event: GeoB2021-5, Angola Basin ; Event: GeoB2109-1, Argentine Basin ; Event: GeoB2116-4, Brazil Basin ; Event: GeoB2117-1, Brazil Basin ; Event: GeoB2125-1, Brazil Basin ; Event: GeoB2202-4, Brazil Basin ; Event: GeoB2204-2, Brazil Basin ; Event: GeoB2215-10, Equatorial Atlantic ; Event: GeoB2819-1, Rio Grande Rise ; Event: GeoB3104-1, NE-Brazilian continental margin ; Event: GeoB3117-1, NE-Brazilian continental margin ; Event: GeoB3175-1, NE-Brazilian continental margin ; Event: GeoB3176-1, NE-Brazilian continental margin ; Event: GeoB3603-2, Southern Cape Basin ; Event: GeoB3722-2, Northern Cape Basin ; Event: GeoB3801-6, Mid Atlantic Ridge ; Event: GeoB3808-6, Mid Atlantic Ridge ; Event: GeoB3813-3, Mid Atlantic Ridge ; Event: GeoB5112-5, Brazil Basin ; Event: GeoB5115-2, Brazil Basin ; Event: GeoB5121-2, Angola Basin ; Event: GeoB5133-3, Angola Basin ; Event: GeoB5140-3, Brazil Basin ;

Bibliographic Citations

Contacts

Hans-Stefan Niebler
originator

Helge Wolfgang Arz
originator

Barbara Donner
originator

Stefan Mulitza
originator

Jürgen Pätzold
originator

Gerold Wefer
originator

metadata author
PANGAEA - Data Publisher for Earth & Environmental Science
email: info@pangaea.de
homepage: https://www.pangaea.de

Frank-Oliver Glöckner
administrative point of contact

Robert Huber
administrative point of contact