Advances in Earth Science ›› 2003, Vol. 18 ›› Issue (5): 697-705. doi: 10.11867/j.issn.1001-8166.2003.05.0697

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PROGRESS OF OCEAN DRILLING IN POLAR REGIONS

Wang Rujian   

  1. Laboratory of Marine Geology, Tongji University, Shanghai 200092, China
  • Received:2003-06-23 Revised:2003-07-27 Online:2003-12-20 Published:2003-10-01

Wang Rujian. PROGRESS OF OCEAN DRILLING IN POLAR REGIONS[J]. Advances in Earth Science, 2003, 18(5): 697-705.

Achievements made by Deep Sea Drilling Project (DSDP) and Ocean Drilling Program (ODP) in the Antarctic and Arctic regions are the focus of world attention, opening a new insight for the past global change study. They reveal the paleoceanographic and paleoclimatic evolutionary history during the Neogene in the high latitude of the North Atlantic, find the millennial timescale climatic variability during the early Pleistocene “41 ka world” and couple the oscillation between surface temperature and deep water during the glacial periods, indicating the climatic instability of deglaciation during the glacial and interglacial cycles. They also test the formation history of the Antarctic Circumpolar Current, uncover the Cenozoic climate cooling and the evolutionary history of ice sheet in the Antarctic and confirm the “lead” of Southern Ocean temperature with respect to global ice volume, based on minimum planktonic δ18O values and increases in SST estimated by transfer functions lead the minimum in benthic δ18O by several thousand years at glacial terminations. The Arctic Lomonsov ridge which will be visited by the Integrated Ocean Drilling Program (IODP) in 2004 will declare in a new era of scientific exploration. The sediment study on the ridge will reconstruct the Cenozoic environmental change and climate evolutionary history in the Arctic and usher the role of the Arctic in global climate change.

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