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燕山地区冀北坳陷元古界下马岭组沥青砂岩岩石学特征和沉积环境*
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朱毅秀1,2, 杨程宇1,2, 王欢1,2, 肖劲光1,2 |
Petrologic characteristics and sedimentary environments of bituminous sandstone in the Proterozoic Xiamaling Formation of Jibei Depression, Yanshan region
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Zhu Yi-Xiu 1,2, Yang Cheng-Yu 1,2, Wang Huan 1,2, Xiao Jin-Guang 1,2
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冀北坳陷下马岭组沥青砂岩样品频率分布 |
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