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Sedimentary characteristics and their significance of Miboshan formation in the middle section of the Helan mountains
Pages: 9-15
Year: Issue:  1
Journal: Resources Survey & Environment

Keyword:  Miboshan formationsedimentary characteristicssignificance;
Abstract: 贺兰山中段中、上奥陶统米钵山组,在整个区域地层中占有重要地位,它是贺兰山南北向构造形成的重要标志。其地层明显区别于相邻地台区的沉积,对探讨贺兰山早古生代的构造格局及岩相古地理尤为重要。但对米钵山组沉积环境多有争论,观点各不相同。本文对该区米钵山组沉积特征、沉积层序、沉积岩相和古地理环境进行了分析研究,并划分为碎屑流、浊流和正常深水沉积三种类型,推断贺兰山南北向构造在加里东中期开始形成,并延续到白垩...
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