福建深沪湾古森林遗迹和牡蛎礁发现的古地理意义

PALEOGEOGRAPHICAL SIGNIFICANCE OF DISCOVERY OF PALEOFOREST REMAINS AND OYSTER REEF IN SHENHU BAY,FUJIAN

本文研究了分布于福建深沪湾南岸潮间带的古森林遗迹和牡蛎礁。结果表明,古森林属陆相裸子植物,距今约8ka;牡蛎礁主要由近江牡蛎ostrea rivularis化石组成,其形成年代约距今3k—4ka,从而为研究该区的地壳运动、海平面升降和古地理环境演变提供佐证。

This paper studies the paleoforest remains and oyster reef distributed in the tidal zone of the Shenhu Bay′s south coast,Fujian.It shows that the palenforest belonged to a gymnosperm of land facies of about 8000 a B.P.;Oyster reef is mainly composed of fossil of Ostrea rivularis of about 3000—4000 a B.P..The result provides an evidence for crustal movement sea-level change and paleogeographical environment evolution.