Dupont, Lydie M. et al. (2005): Linking desert evolution and coastal upwelling; Pliocene climate change in Namibia

Leg/Site/Hole:
ODP 175
ODP 175 1082
ODP 175 1083
Identifier:
2005-037564
georefid
10.1130/G21401.1
doi
Creator:
Dupont, Lydie M.
Geosciences University of Bremen, Bremen, Federal Republic of Germany
author
Donner, Barbara
University of Aix-Marseille III, France
author
Vidal, Laurence
Natural History Museum of Los Angeles County, United States
author
Perez, Elena M.
author
Wefer, Gerold
author
Identification:
Linking desert evolution and coastal upwelling; Pliocene climate change in Namibia
2005
Geology (Boulder)
Geological Society of America (GSA), Boulder, CO, United States
33
6
461-464
A late Pliocene high-resolution pollen record from the southeast Atlantic (Ocean Drilling Program Site 1082) registers vegetation development in southwest Africa. The marine record is continuous, ranges from 3.5 to 1.7 Ma, and has a millennial resolution between 2.9 and 1.9 Ma. Changes in climate and vegetation correspond to the Matuyama diatom maximum of the Namibian upwelling system and seem to be highly susceptible to latitudinal shifts in the Polar Front Zone of the Southern Ocean. A northward advance of the polar fronts is connected with an increase in winter rainfall in southwest Africa. Rapid desiccation in Namibia at 2.2 Ma is associated with increasing upwelling and decreasing sea- surface temperatures along the coast.
English
Serial
Coverage:Geographic coordinates:
North:-20.5342
West:11.1304East: 11.4914
South:-21.0539
Stratigraphy; Africa; algae; Anomalinidae; arid environment; Atlantic Ocean; Cassidulinacea; Cenozoic; Cibicidoides; Cibicidoides wuellerstorfi; climate change; coastal environment; deserts; desiccation; diatoms; eolian features; Foraminifera; Globigerinacea; Globorotalia; Globorotalia inflata; Globorotaliidae; Invertebrata; landform evolution; Leg 175; microfossils; miospores; Namib Desert; Namibia; Neogene; Ocean Drilling Program; ODP Site 1082; ODP Site 1083; paleo-oceanography; paleocirculation; paleoclimatology; paleoecology; paleohydrology; palynomorphs; Plantae; Pliocene; pollen; pollen analysis; Protista; Rotaliina; sea-surface temperature; South Atlantic; Southeast Atlantic; Southern Africa; terrestrial environment; Tertiary; upwelling; vegetation;
.