地球科学进展 ›› 1995, Vol. 10 ›› Issue (3): 234 -239. doi: 10.11867/j.issn.1001-8166.1995.03.0234

干旱气候变化与可持续发展 上一篇    下一篇

大洋钻探与西太平洋构造
金性春   
  1. 同济大学海洋地质系  上海  200092
  • 收稿日期:1995-02-21 出版日期:1995-06-01
  • 通讯作者: 金性春

OCEAN DRILLING PROGRAM AND TECTONICS OF THE WESTERN PACIFIC REGION

Jin Xingchun   

  1. Marine Geology Department,Tongji University,Shanghai  200092
  • Received:1995-02-21 Online:1995-06-01 Published:1995-06-01

菲律宾海的深海钻探证实了弧间扩张和残留弧形成模式。小笠原—马里亚纳弧前区的钻探表明,俯冲带初生时伴随着海底扩张,形成了异常宽阔的火山活动带。有许多陆上蛇绿岩形成于俯冲带初生时的海底扩张环境。日本海的钻探揭示了日本边缘盆地的打开和关闭。新近形成的日本海东缘板块边界对华北地区的构造有重要制约作用。中国东海和南海占有独特的构造位置,布置大洋钻探意义重大。文章还强调了中国地质学家从全球地质学的观点研究问题(而不仅仅局限于中国地区)的重要性。

The model of the inter-arc spreading and the remnant arc development are verified by the deep-sea drilling in the Philippine Sea. The driling in the Bonin-Mariana forearc shows that the volcanic active zone, which was anomalously large, occurred during the juvenile phase of subduction with sea-floor spreading. Lots of ophiolite found on continent were developed in the setting of sea-floor spreading in the juvenile phase of subduction. The drilling in the Japan Sea reveals processes of opening and closing of the margin basin of Japan Sea.The recent plate boundary at the east margin of Japan Sea imposes important restriction on tectonics in North China. The ocean drilling in the East China Sea and South China Sea will be of great signification because of their distinctive tectonic positions. The present paper emphasizes the significance of approaches to geological problems from global view instead of local one for Chinese geologists.

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