青海—甘肃民和盆地巴州拗陷的白垩系
The Cretaceous in the Bazhou depression of Minhe basin,Qinghai Gansu
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摘要: 民和盆地巴州拗陷的白垩系按其岩性、化石特征和沉积相自下而上分为大通河组、河口组和民和组。根据三组的化石特征,探讨它们的地质时代,并与相关地区的地层进行对比。Abstract: In terms of lithology,fossil records and sedimentary facies,the Cretaceous in the Bazhou depression,Minhe basin is subdivided into Datonghe,Hekou and Minhe Formation.Paleontology and age of the formations are elucidated,which is correlated with relevant areas.