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Pleistocene surface water temperatures in the Benguela upwelling area
- Source :
- Oceanology. 51:652-661
- Publication Year :
- 2011
- Publisher :
- Pleiades Publishing Ltd, 2011.
-
Abstract
- Analysis of carbonate microfossils (planktonic foraminifers and nannoplankton) in the DSDP Hole 362 Quaternary section made it possible to specify its zonal subdivision (almost all zones of Gartner’s high-resolution nannofossil scale are recognized), establish depositional environments, and restore past surface water temperatures. The latter appeared to be several degrees lower than their present-day values, which is evident from the anomalously high share of the subpolar species Neogloboquadrina pachyderma sin. that constitutes 97% of the fossil assemblage in Lower Pleistocene sediments. It is shown that the Benguela upwelling existed throughout the entire Pleistocene, being less intense in the Late Pleistocene and Holocene.
Details
- ISSN :
- 15318508 and 00014370
- Volume :
- 51
- Database :
- OpenAIRE
- Journal :
- Oceanology
- Accession number :
- edsair.doi...........9efa208358afcc0fc9c693b8b5d9400f