| 义马煤田义马组沉积环境及其对聚煤作用的影响 |
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| 引用本文： | 王运泉,孟凡顺. 义马煤田义马组沉积环境及其对聚煤作用的影响[J]. 沉积与特提斯地质, 1994, 0(1) |
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| 作者姓名： | 王运泉 孟凡顺 |
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| 作者单位： | 中国矿业大学北京研究生部，河南焦作矿业学院 |
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| 摘 要： | 本文根据义马组（Ｊｙｉ）的各种沉积特征，结合垂直层序，对其沉积环境进行了剖析，认为义马组由下往上可分为三段：下部砾岩段主要是一套冲积扇体系沉积；中部砂岩段主要是一套湖滨三角洲体系沉积；上部泥岩段主要是一套湖泊体系沉积。此外，还详细讨论了沉积环境对义马组主要可采煤层２＿３煤和２＿１煤煤厚和煤质的影响。
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| 关 键 词： | 义马煤田，沉积环境，聚煤作用 |
THE INFLUENCE OF SEDIMENTARYIENVIRONMENTSOF THE YIMA FORMATION ON COAL-FORMINGPROCESSES IN THE YIMA COAL FIELD,HENAN |
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| Wang Yunquan. THE INFLUENCE OF SEDIMENTARYIENVIRONMENTSOF THE YIMA FORMATION ON COAL-FORMINGPROCESSES IN THE YIMA COAL FIELD,HENAN[J]. Sedimentary Geology and Tethyan Geology, 1994, 0(1) |
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| Authors: | Wang Yunquan |
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| Abstract: | On the basis of sedimentary characteristics and vertical sequences,the present paperelucidates the sedimentary environments of the Yima Formation which can be divided intothree members from bottom to top i. e.,the lower conglomerate member composed mainlyof the alluvial fan deposits; the middle sandstone member consisting maiply of the lakeshore deltaic deposits,and the upper mudstone member made up of the lacustrine deposits.In addition .this paper discusses in detail the influence of the sedimentary environments onthe thickness and quality of the major minable seams(2 3 and 2 1 seams). |
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| Keywords: | Yima coalfield sedimentary environment coal-forming process |
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