地质科技情报2011，Vol.30Issue(3)：98-102,5.
鄂尔多斯盆地西南缘奥陶系地球化学特征与沉积环境分析
Geochemical Characteristics and Its Sedimentary Environment Significance of the Ordovician in the Southwestern Margin of Ordos Basin
摘要
Abstract
There are Ordovician marine source rocks in the southwestern margin of Ordos Basin. The source rocks are thick and wide, and the condition for storage and generation is good. According to the element geochemical characteristics and petrological characteristics, the environment and the distribution of source rocks in the study area are discussed. The conclusion is that the geochemical characteristics of the Ordovician in the southwestern margin of Ordos Basin can better reflect the sedimentary environment. In the Majiagou Formation in the southern margin and Zhuozishan Formation in the western margin, the water was shallow, and the reduction was weak. These characteristics are detrimental to preserve organism. In the Fengfeng Formation in the southern margin and Kelimoli Formation in the western margin, the water was deep, and the reduction was strong. The preservation of organism is easy. In the Pingliang Formation, the water was deep and occlusive, and the reduction was very strong. The abundance of organism is very high. The geochemical characteristics of the Ordovician in the study area have great significance for e-valuating the reservoir.关键词
元素地球化学/沉积环境/烃源岩/奥陶系/鄂尔多斯盆地Key words
element geochemistry/sedimentary environment/source rock/Ordovician/Ordos Basin分类
地质学引用本文复制引用
毛小妮,周立发,杨甫,蒲磊..鄂尔多斯盆地西南缘奥陶系地球化学特征与沉积环境分析[J].地质科技情报,2011,30(3):98-102,5.基金项目
国家重大基础研究规划项目(2002CCC01400) （2002CCC01400）
中国石油化工股份有限公司科技攻关项目 （）
