| 黄陇侏罗纪煤田控煤构造研究 |
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| 引用本文： | 贺丹,李智学.黄陇侏罗纪煤田控煤构造研究[J].中国煤炭地质,2011(10):14-18. |
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| 作者姓名： | 贺丹 李智学 |
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| 作者单位： | 陕西省煤田地质局勘察研究院; |
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| 摘 要： | 陕西省黄陇侏罗纪煤田位于鄂尔多斯凹陷盆地南缘,煤田中东部地区北东-东西向褶皱发育,西部地区北西向断裂发育。受三叠系古地形影响,富县组起到填平补齐的作用;煤田内发育的褶皱不同程度控制了成煤期延安组的沉积和赋存状况,背斜古隆起处延安组沉积薄,含煤性差,向斜古洼地处延安组沉积厚,含煤性好;成煤后在区域构造背景下,盆地一度抬升,煤田东、南部含煤地层遭受剥蚀,西部发育的后期断裂构造破坏了煤层连续性。综合分析认为,煤田主要受成煤期同沉积构造控制,依据煤层赋存规律与控煤构造的关系,预测在永陇矿区陇县东部-千阳北部、陇县南-千阳一带为找煤有利区。
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| 关 键 词： | 控煤构造 赋煤规律 黄陇侏罗纪煤田 |
A Study on Coal-control Structure in Huangling-Longxian Jurassic Coalfield |
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| He Dan,Li Zhixue.A Study on Coal-control Structure in Huangling-Longxian Jurassic Coalfield[J].Coal Geology of China,2011(10):14-18. |
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| Authors: | He Dan Li Zhixue |
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| Institution: | He Dan,Li Zhixue(Exploration Research Institute,Shaanxi Bureau of Coal Geological Exploration,Xian,Shaanxi 710054) |
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| Abstract: | The Huangling-Longxian coalfield in Shaanxi Province is situated on the south margin of the Ordos down-warped basin.NE-EW folds are well developed in the middle and eastern parts of the coalfield,while NW faults in the western part.Conditioned by Triassic paleotopography,the Fuxian Formation deposit has played a role of filling and leveling up.Folds in the coalfield have controlled deposition and preservation of the Yanan formation during the coal-forming period: thin and poor coal-bearing properties in ant... |
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| Keywords: | coal-control structure coal hosting pattern Jurassic Huangling-Longxian coalfield |
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