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- W1623508731 abstract "Based on sedimenlological and micropaleontological work on three sediment cores collected at about 167° Ε in the western Ross Sea, Antarctica, and accelerator mass spectrometer l4 C ages of organic carbon, we have reconstructed environmental changes in the area during the late Quaternary. Since 38 ka BP at latest, this area was a marine environment with low productivity. A grounded ice sheet advanced and loaded the sediments before about 30-25 ka BP. After 25 ka BP, the southernmost site (76°46'S) was covered by floating ice (shelf ice), preventing deposition of coarse terrigenous materials and maintaining a supply of diatom tests and organic carbon until 20 ka BP. The northernmost site (74°33'S) was in a marine environment with a moderate productivity influenced by shelf ice/ice sheet after about 20 ka BP. Since about 10 ka BP, a sedimentary environment similar to the present-day one has prevailed over this area." @default.
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- W1623508731 date "1998-01-01" @default.
- W1623508731 modified "2023-10-16" @default.
- W1623508731 title "Late Quaternary paleoenvironment of the Ross Sea continental shelf, Antarctica" @default.
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- W1623508731 doi "https://doi.org/10.3189/1998aog27-1-275-280" @default.
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