摘要
通过"青海省侏罗系油页岩资源调查评价项目"工作的开展,以及对以往施工煤炭钻孔资料的系统梳理,认为青海省侏罗系油页岩主要赋存于以A、B两类型为代表的江仓组上段、石门沟组上段半深湖-深湖环境,其次为以C、D两类型为代表的窑街组及小煤沟组的湖湾沼泽环境。小峡矿区主体以湖湾环境为主,油页岩主要在湖湾环境的中心附近发育富集。鱼卡矿区主要为三角洲平原、三角洲前缘、滨浅湖、半深湖-深湖环境,油页岩分布在半深湖-深湖、滨浅湖、三角洲前缘单元中,主要在滨浅湖-半深湖-深湖环境中富集。
Through the investigation and assessment of Jurassic oil shale resources in the Qinghai Province, and previous drilled coal borehole data systematic sorting,have considered that the Jurassic oil shale is mainly hosted in the lithologic association types A and B represented three upper members of Jiangcang, Shimengou and Yaojie fonnations semi - deep to deep lacustrine environment; the next is lithologic association types C and D represented Yaojie and Xiaomeigou formations lacustrine bay bog environment. The principal part in the Xiaoxia mine area is mainly lacustrine bay environment ; oil shale has been developed and enriched near the center of the lacus-trine bay environment. The Iqe mine area has been in delta plain, delta front, shallow lake shore semi - deep to deep lacustrine envi-ronment ;oil shale has been developed in semi - deep to deep lacustrine, shallow lake shore, delta front unit, mainly enriched in shal-low lake shore, semi - deep to deep lacustrine environment.
作者
李永红
Li Yonghong(Qinghai Bureau of Coal Geological Exploration,Xining,Qinghai 810001)
出处
《中国煤炭地质》
2018年第7期35-39,共5页
Coal Geology of China
基金
青海省地勘基金项目-青海省侏罗系油页岩资源调查评价
项目编号:2013274011kc001
2014057043kc006
2015083086kc002
关键词
青海省
侏罗系
油页岩
成矿模式
Qinghai Province
Jurassic System
oil shale
mineralization model
