中国沿海大陆架及邻域第三纪的沉积特征和古地理分析

ANALYSIS OF DEPOSTTIONAL FEATURES & PALEO-GEO GRAPHY OF CHINA CONTINNTAL SHELF AND ADJACEN BEGIONS.

我国沿海大陆架及邻域各沉积盆地第三纪沉积较全,厚逾万米。早第三纪以断陷河湖沉积体系为主,在南海南部、东海南部及台湾周围为海陆交互或海相沉积体系:晚第三纪渤海、黄海及东海北部为拗陷河流沉积体系,东海南部、台湾周围及南海为陆棚浅海或深海沉积体系:第三系生油、储油条件优越,已经发现了四个生油层系、两个高产储集层系,七种成油组合。是我国沿海大陆架诸沉积盆地内的主要勘探对象。

Author believes Tertiary sediments are relatively complete,with total thickness of over 10,000 m in basins on shelf and adjacen areas. In Paleogen, a fluvial-lacustrine sedimentary system in faulted basins was dominant, while alternated marine & continntal or marine systems were prevailing in southern part of South China Sea and of East China Sea, and the surrounding area of Taiwan. In Neogene however, fluvial system in depressions developed in Bohai Bay, South Yellow Sea and northern part of East China Sea.Meanwhile, shallow marine system on the shelf or deep marine system presented in southern East China Sea, the surrounding area of Taiwan, and South China Sea.