西北地区白垩系的划分及与侏罗系的界线

张守安; 易荣龙; 李明

doi:10.11743/ogg19920107

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西北地区白垩系的划分及与侏罗系的界线
CLASSIFICATION OF CRETACEOUS AND ITS BOUNDARY WITH JURASSIC IN NORTHWEST CHINA
1992年13卷第1期页码：71-77
网络首发：1992-03-25，

纸质出版：1992
DOI： 10.11743/ogg19920107
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张守安, 易荣龙, 李明. 西北地区白垩系的划分及与侏罗系的界线[J]. 石油与天然气地质, 1992,13(1):71-77. DOI： 10.11743/ogg19920107.

Zhang Shouan, Yi Ronglong, Li Ming. CLASSIFICATION OF CRETACEOUS AND ITS BOUNDARY WITH JURASSIC IN NORTHWEST CHINA[J]. 1992, 13(1): 71-77. DOI： 10.11743/ogg19920107.

摘要

本文将吐谷鲁群、克孜勒苏群、卡普沙良群、庙沟群、河口群、赤金桥组、新民堡群等及其相当岩层划归下白垩统;将艾里克湖组、东沟组、巴什基奇克组、苏巴什组、金刚泉群、马连沟群、民和组等及其相当岩层划归上白垩统。侏罗、白垩系的分界

以划在喀拉扎组与吐谷鲁群之间

苦水峡组与河口群之间

红水沟群与犬牙沟群之间

万秀群与东河群之间较宜。

Abstract

According to the stratigraphic paleontological characteristics

the Tugulu

Kizilsu

Ka-pushaliang

Miaogou

Hekou

Xingmingbao

Donghe Groups and Chijingqiao

Wuerta

Dashuigou Formations

the lower part of the Quanyagou Group and their correspounding stratums are classified to Lower Cretaceous;the Ailikehu

Donggou

Bashijiqik

Kumutag

Subashi

Wulanshaohu

Minghe Formations and the Jinggangquan

Maliangou

the upper Quanyagou Groups and their equivelent stratums are classified to the Upper Creta-ceous.The boundary between the Jurassic and the Cretaceous is suggested to be set be-tween Kalazha Formation and Tugulu Group

Hongshan Formation and Tugulu Group

Shazaohe Group and Miaogou Group

Kushuixia Formation and Hekou Group

Hong-shuigou Group and Quanyagou Group

Wanxiu Group and Donghe Group.