东海西湖凹陷苏堤区带平湖组沉积环境

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Sedimentary Environment of Pinghu Formation in Sudi Division,Xihu Ssg, the East China Sea

摘要: 苏堤地区位于西湖凹陷浙东中央背斜带的南部,现有钻井天外天一井揭露平湖组1549.5米。该井平湖组沉积相历来有多种看法,本文比较了前人工作成果,提出新的认识。根据过渡相盆地沉积机制,运用旋回地层学重新分析了地层特征,对该地区沉积环境演化提出新的见解。

Abstract: Sudi Division is located at the south part of center anticlinal zone. Pinghu Fm. of TWT Well 1 (1549.5m in thickness) have been interpreted by various views. This paper puts forward new points about depositional evolution based on depositional mechanism of transitional basin and stratum characteristics described by cyclostratigraphy.