| 含煤盆地层序地层分析的几个基本问题 |
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| 引用本文： | 李思田,李祯.含煤盆地层序地层分析的几个基本问题[J].煤田地质与勘探,1993,21(4):1-9. |
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| 作者姓名： | 李思田 李祯 |
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| 作者单位： | 中国地质大学 北京100083
(李思田，李祯，林畅松，杨士恭)，中国地质大学 北京100083(解习农) |
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| 摘 要： | 在中国不同时代煤盆地中正进行层序地层学的探索,识别层序界面、划分层序地层单元、重建沉积体系域并用以预测优质富煤单元。由于不同时代、不同类型煤盆地的地质背景不同,不能简单地使用北美学者概括的层序地层模型;需要根据各类盆地所特有的地质背景,重建其层序地层格架,并客观地估价构造、海平面变化和古气候以及沉积补给等因素对层序形成的控制作用。
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| 关 键 词： | 层序地层学 盆地 煤田 地质构造 |
SOME FUNDAMENTAL PROBLEMS ABOUT SEQUENCE STRATIGRAPHIC ANALYSIS OF COAL BASIN |
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| Li Sitian Li Zhen Lin Changsong Yang Shigong Xie Xinong.SOME FUNDAMENTAL PROBLEMS ABOUT SEQUENCE STRATIGRAPHIC ANALYSIS OF COAL BASIN[J].Coal Geology & Exploration,1993,21(4):1-9. |
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| Authors: | Li Sitian Li Zhen Lin Changsong Yang Shigong Xie Xinong |
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| Institution: | China University of Geosciences |
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| Abstract: | In Palaeozoic,mesozoic and cenozoic coal basins of China,approaches by sequencestratigraphy,distinguishing sequence boundaries,dividing sequence stratigraphic units,reconstructing depositional system tract and predicting optimum coal-rich units,are being conducted.However,models ofsequence strata established by the North America geologists can not be simply used in China due todifferences in geological backgrounds of different coal basins.Thus,it is necessary to reestablish frameworkmodels of sequence stratigraphy for China basins of different patterns based on their special geologicalbackgrounds,and,objectively evaluate controlling functions of tectonics,sea-level changes,palaeoclimate,and sediments supply over sequence formation. |
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| Keywords: | sequence stratigraphy basin analysis coal geology application |
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