地理科学

地理科学 ›› 1995, Vol. 15 ›› Issue (4): 321-326,393.doi: 10.13249/j.cnki.sgs.1995.04.321

• 论文 • 上一篇    下一篇

转换函数与南黄海13万年来海水深度的变化

王建1, 杨怀仁2   

  1. 1. 南京师范大学地理系 南京210024;
    2. 南京大学大地海洋科学系 南京210008
  • 收稿日期:1994-06-17 修回日期:1995-01-10 出版日期:1995-07-20 发布日期:1995-07-20

TRANSFER FUNCTION AND THE DEPTHCHANGES OF THE SOUTH YELLOW SEA (CHINA) INTHE LAST 130000 YEARS

Wang Jian1, Yang Huairen2   

  1. 1. Department of Geography, Nanjing Normal University, Nanjing 210024;
    2. Department of Geography, Nanjing University, Nanjing 210008
  • Received:1994-06-17 Revised:1995-01-10 Online:1995-07-20 Published:1995-07-20

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11 | 4

摘要： 通过南黄海现代有孔虫含量与水深的相关分析,建立了水深—有孔虫含量转换函数.通过时空适用范围的判别检验,选取适宜的转换函数,对QC2孔化石有孔虫数据进行计算,定量估算出南黄海130 ka来海水深度的变化.

Abstract: Five transfer functions (depth/foraminifera percentage) are established in terms of the calculation of modern foraminifera data which are derived from 77 sea-bed surface samples of the South Yellow Sea. After adaptability analysis, D=35.60-0.95 PAm.bec+0.864 PAm.keli (R=0.911, ε=9.7 m) is selected and used to estimate the depth changes of the South Yellow Sea for the last 130000 years.In the past 130000 years, relative deeper sea appeared in 120, 100, 80 ka B. P. and nowadays, relative shallower sea appeared in 110, 90, 70-50, 20-15 ka B. P. In general speaking, the changes of sea depth indicate the changes of glacial-eustatic changes. The greatest depth during the last interglacial was 5-10 meters greater than that at present. This suggests that the highest sea level during the last Interglacial might be 5-10 meters higher than that at present.