关键词: 东海陆架盆地, 第三系海相沉积, 碎屑岩, 石灰岩, 生物地层对比, 沉积环境, 沉积特征, 古地理环境, 古盐度, 古温度, 古气候

Abstract: Marine bioclastic limestone in the lower part of WenZhou formation,middle Eocene,iswidely spreaded in the TaiBei depression.This is a neritic platform deposition under asubtropical humid climate.Organisms are well developed in these rock formations which canbe served as markers in formation correlation.Moreover,they are favorable source rocks as well as reservoir rocks.They are favorable targets in the exploration of commercial oil and gaseposits in the TaiBei Depression.