东海陆架盆地台北坳陷新地层单位——月桂峰组

YUEGUIFENG FORAMTION,A NEW STRATIGRAPHIC UINT IN THE TAIPEI DEPRESSION OF THE CONTINENTAL SHELF, THE EAST CHINA SEA

在微体古生物和岩石地层学分析基础上 ,建立了东海陆架盆地台北坳陷新的地层单元——月桂峰组。月桂峰组分布于东海陆架盆地台北坳陷西带 ,由灰黑色泥岩、砂岩组成 ,上覆灵峰组、下伏石门潭组。它属古近纪古新世沉积 ,并推测可能为古新世早期。该地层相当于苏北盆地阜宁组一段。

A new stratigraphic unit, Yueguifeng Formation, is set up for the Paleogene strata in the western belt of the Taipei Depression of the continental shelf, the East China Sea. It lies above the red layer of the Shimentan Formation and is covered by the Lingfeng Formation. The relationships between the three formations are unconformity. The Yueguifeng Formation is composed of grey, black silt and sand. Based on the analysis of paleontology and petrology, the Yueguifeng Formation is assigned to the Paleocene, correlated to the Funin Formation in the Northern Jiangsu Basin. The paleontologic analysis also suggests that the Yueguifeng Formation was deposited in a fresh water lacustrine environment.