Genetic types and deposit features of oil shale in continental basin in China
Liu Zhaojun1, 2, Sun Pingchang1, 2, Liu Rong1, 2, Meng Qingtao1, 2, Hu Fei1, 2
1 College of Earth Sciences,Jilin University,Changchun 130061,Jilin; 2 Key Laboratory for Oil Shale and Coexisting Minerals of Jilin Province,Jilin University,Changchun 130061,Jilin
Abstract：Scholars at home and abroad have done some effective discussion on the genetic classification of oil shale,however,there is no uniform classification. Considering that most oil shale in China are continental deposits, starting with the sedimentary environment of oil shale,the conclusion that the content of aquatic organism was decreased in the oil shale while the value of terrestrial organic matter was increased from aphytal to semi￣deep lake to limnetic environments was drawn. Based on the above understanding,continental oil shale could be divided into three genetic types,namely aphytal sapropelic oil shale,semi-deep lake humic-sapropelic oil shale and limnetic sapropelic-humic oil shale. Characteristics of oil shale in 29 continental basins show that the ore of aphytal sapropelic oil shale is always distributed widely in the large to mid￣sized depression basins and characterized by wide stable lateral distribution and medium oil shale grade and thickness. In addition,aphytal sapropelic oil shale ore in small rift basins is characterized by huge thickness,good quality and small distribution scale and great differences in lateral thickness. Semi-deep lake humic-sapropelic oil shale is distributed in both depression and rift basins,with small distribution scale and significant differences in lateral and vertical quality and thickness. Limnetic sapropelic-humic oil shale are mainly deposited in rift basins characterized by limited distribution,small thickness and high quality.
基金资助:国家自然科学基金项目(编号:41402088),中国博士后科学基金特别资助项目(编号:2014M550174,2015T80303),吉林省科技发展计划项目(编号:20150520070JH)联合资助; [Co-funded by the Nation Natural Science Foundation of China(No.41402088),China Postdoctoral Science Foundation(Nos.2014M550174, 2015T80303) and Science and Technology Development Plan of Jilin Province(No.20150520070JH)]
Liu Zhaojun,Sun Pingchang,Liu Rong et al. Genetic types and deposit features of oil shale in continental basin in China[J]. JOPC, 2016, 18(4): 525-534.
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