9. GUEMBELITRIA AFF. STAVENSIS BANDY, A PALEOOCEANOGRAPHIC MARKER OF THE INITIATION OF THE CIRCUM-ANTARCTIC CURRENT AND THE OPENING OF THE DRAKE PASSAGE
The paleooceanographic and stratigraphic distribution of Guem-belitria aff. stavensis Bandy in oceanic sediments around Antarctica provides evidence of the initiation of the circum-Antarctic Current including the oldest date for the opening of the Drake Passage in the lower part of the upper Oligoce...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.485.7571 http://www.deepseadrilling.org/38_39_40_41/volume/dsdp40_09.pdf |
| Summary: | The paleooceanographic and stratigraphic distribution of Guem-belitria aff. stavensis Bandy in oceanic sediments around Antarctica provides evidence of the initiation of the circum-Antarctic Current including the oldest date for the opening of the Drake Passage in the lower part of the upper Oligocene G. (G.) euapertura Zone. Paleontological events are correlated with K/Ar dates and it is postulated that the Drake Passage was open to the flow of oceanic water which supported plankton, at about 28 m.y.B.P. |
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