海洋地质与第四纪地质2011，Vol.31Issue(5)：51-58,8.DOI:10.3724/SP.J.1140.2011.05051
贺兰坳拉谷奥陶纪岩相古地理
ORDOVICIAN PALEOGEOGRAPHY IN HELAN AULACOGEN
郭峰 1郭岭 2赵卫卫1
作者信息
- 1. 西安石油大学油气资源学院,西安710065
- 2. 中国地质大学(北京)地质过程与矿产资源国家重点实验室,北京100083
- 折叠
摘要
Abstract
Shallow marine carbonates dominate the Ordovician of the Helan Aulacugen, with clastic and py-roclastic rocks as the second. In the carbonate deposits, there are micritic limestone, argillaceous limestone, oolitic limestone, calcirudite, crystalline dolostone and argillaceous dolostone. Stromatolite and cloudy limestone occur in some areas. They were formed in a variety of environments, such as the mud-dolomite tidal flat, restricted platform, openrplatform, shelf and submarine fan in an succession from land to sea.关键词
岩相古地理/贺兰坳拉谷/奥陶纪Key words
Helan Aulacogen/ Ordovician/ Lithofacies and paleogeography分类
海洋科学引用本文复制引用
郭峰,郭岭,赵卫卫..贺兰坳拉谷奥陶纪岩相古地理[J].海洋地质与第四纪地质,2011,31(5):51-58,8.
