| 内蒙古通辽南部石炭纪岩相古地理特征 |
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| 引用本文： | 张凤林,贺宏云.内蒙古通辽南部石炭纪岩相古地理特征[J].中国地质,2002,29(4):407-410. |
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| 作者姓名： | 张凤林 贺宏云 |
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| 作者单位： | 内蒙古自治区第十地质矿产勘查开发院,内蒙古,赤峰,024005 |
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| 基金项目： | 中国地质调查局资助项目 |
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| 摘 要： | 研究区位于内蒙古自治区奈曼旗和库伦旗南部，构造区划属于华北板块北缘的天山-赤峰活动带^1]。区内晚石炭世地层以陆源碎屑岩和碳酸盐岩沉积为主。二者在空间上具有相变关系。按微相组合或基本层序，沉积构造，生物特征及其空间分布规律，可划分出滨岸相，潮坪相，台后盆地相及台地相4种岩相，8个微相；它们构成一个较为完整的海进层序，属于海侵体系域沉积。反映华北板块北缘晚石炭世海槽属于被动陆源盆地-即陆表海环境。
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| 关 键 词： | 华北板块 岩相古地理 陆源碎屑岩 碳酸盐岩 内蒙古 石炭纪 |
| 文章编号： | 1000-3657(2002)04-0407-04 |
Carboniferous lithofacies-paleogeography in the southern part of Tongliao, Inner Mongolia |
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| Zhang Feng-lin,HE Hong-yun.Carboniferous lithofacies-paleogeography in the southern part of Tongliao, Inner Mongolia[J].Chinese Geology,2002,29(4):407-410. |
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| Authors: | Zhang Feng-lin HE Hong-yun |
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| Institution: | No. 10 Institute of Geology and Mineral Exploration and Development of the Inner Mongolia Autonomous Region, Chifeng 024005, Inner Mongolia, China |
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| Abstract: | Located in the Naiman Banner and southern Hure Banner,Inner Mongoli a,the study area tec-tonically belongs to the Tianshan-Chifeng mobile belt on the northern margin of the North China plate.The Late Carboniferous strata i n the area consist dominantly of terrestrial clastic rocks and carbonate rocks ,which have a facies change relation in space.According to the microfacies ass emblage or essential sequence,sedimentary structures,biological features and their spatial distribution characteristics,four facies,namely lit-toral faci es,tidal-flat facies,back-platform basin facies and platform facies,and eig ht microfacies may be distinguished;they form a relatively complete transgress ive sequence,belonging to deposits of the transgres-sive systems tract.This suggests that the Late Carbonate sea trough on the northern margin of the Nort h China plate is a passive terrestrial basin,i.e.the epicontinental environme nt. |
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| Keywords: | northern margin of the North China plate lithofacies-paleogeo graphy epicontinental sea |
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