末次盛冰期中国海古地理轮廓及其气候效应

详细信息

刊出日期: 1996-03-25

THE PALEOGEOGRAPHIC CONFIGURATION OF CHINA SEAS AND ITS CLIMATIC INFLUENCE DURING THE LAST GLACIAL MAXIMUM

- 1.
  Laboratory of Marine Geology,Tongji University;
- 2.
  Petroleum University

Publish Date: 25 March 1996

摘要: 本文是联合国政府间海洋委员会西太平洋分委员会（IOC/WESTPAC）发起的“西太平洋古地理图编图计划”中国海部分的初步成果，用101个站位的14C测年和22个站位的氧同位素资料编制了本次盛冰期（20000-15000aB.P.）资料图、古地理图和古海洋图等三张图件。
- 末次盛冰期 /
- 古地理 /
- 中国海 /
- 反照率
Abstract: Over one hundred sites with 14C- datings or oxygen isotope data have been collected to compile paleogeographic maps of the China Seas during the last glacial maximum (LGM) of 20000-15000 aB.P.A series of 3 draft maps (data map,paleogeographic map and paleoceanographic map) have been made, as a part of preliminary results from the IOC/WESTPAC paleogeographic mapping project.In this paper only the paleogeographic map is presented (Fig.1), and it is compiled on the basis of a total of 123 sites, of which 101 are radiocarbon-dated and 22 are constrained by stable oxygen isotope data. Twenty-seven radiocarbon-dated sites and 15 stable oxygen isotope data sites are listed in Table 1 and Table 2 respectively.The paleogeographic map at the last glacial maximum has revealed two major changes of the China Seas caused by the low sea-level stand:(1) The exposure of vast continental shelves in a total area of about 1.55 million km２.

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