鄂尔多斯东北缘东胜地区下白垩统划分的有关问题  

RELATIVE PROBLEMS CONCERNING THE LOWER CRETACEOUS STRATIGRAPHIC DIVISION OF THE DONGSHENG AREA ON THE NORTHEASTERN MARGIN OF THE ORDOS BASIN

作　　者：程守田[1] 蒋磊[1] 李志德[1] 刘星[1] 黄焱球[1] 

机构地区：[1]中国地质大学资源学院,湖北武汉430074

出　　处：《地层学杂志》2003年第4期336-339,共4页Journal of Stratigraphy

基　　金：国家自然科学基金项目 (No.49772 118)

摘　　要：鄂尔多斯东北缘东胜地区下白垩统的地层划分一直存在分歧。依据地层的沉积成因及保存特征 ,通过地层的相变关系及其对比分析 ,指出了东胜组和伊金霍洛组划分方案的不合理性 。There have been different opinions on the Lower Cretaceous stratigraphic division of the Dongsheng area, on the northeastern margin of Ordos Basin for a long time. On the basis of the researches on depositional genesis, occurrence state and facies change of the strata, as well as stratigraphic correlation, we think that the present division of the Lower Cretaceous into the Dongsheng and Yijinhuoluo Formations is unsuitable. A new and more reasonable divisional scheme on the Lower Cretaceous of the area is suggested in this paper.

关 键 词：鄂尔多斯 东胜地区 下白垩统 地层划分 地层相变关系 地层对比分析 

分 类 号：P534.53[天文地球—古生物学与地层学]