| 鄂尔多斯盆地上三叠统瓦窑堡组层序地层及聚煤特征研究 |
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| 引用本文： | 田野,李智学,邵龙义,王东东,李明培.鄂尔多斯盆地上三叠统瓦窑堡组层序地层及聚煤特征研究[J].中国煤炭地质,2011(8):13-17,27. |
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| 作者姓名： | 田野 李智学 邵龙义 王东东 李明培 |
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| 作者单位： | 中国矿业大学(北京)地球科学与测绘工程学院;陕西省煤田地质勘察研究院; |
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| 基金项目： | 国土资源大调查(1212010633901); 国家科技重大专项(2011ZX05009-002)项目共同资助 |
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| 摘 要： | 利用钻孔岩心数据等资料及层序地层学的有关理论、方法,对鄂尔多斯盆地上三叠统瓦窑堡组进行了层序地层学和聚煤作用的研究。识别出区域不整合面、河流下切谷、地层颜色、岩性突变界面等4个层序界面,并划分出了3个三级层序及相应的低位、湖侵及高位体系域。从时间上看含煤性以层序3最好,层序2次之,层序1较差,煤层主要形成于三级层序的湖侵体系域,其次为高位体系域,厚煤层（5煤层）主要发育于三级层序最大湖泛面附近。综合研究区沉积环境、层序地层、岩相古地理等研究成果,得出了主要煤层（5煤层）形成于湖侵过程中湖湾沼泽、三角洲平原间湾沼泽和曲流河泛滥平原沼泽的结论。
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| 关 键 词： | 层序地层 聚煤作用 瓦窑堡组 鄂尔多斯盆地 |
Upper Triassic Series Wayaobu Formation Sequence Stratigraphic and Coal Accumulation Characteristic Studies in Ordos Basin |
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| Tian Ye,Li Zhixue,Shao Longyi,Wang Dongdong , Li Mingpei.Upper Triassic Series Wayaobu Formation Sequence Stratigraphic and Coal Accumulation Characteristic Studies in Ordos Basin[J].Coal Geology of China,2011(8):13-17,27. |
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| Authors: | Tian Ye Li Zhixue Shao Longyi Wang Dongdong Li Mingpei |
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| Institution: | Tian Ye1,Li Zhixue2,Shao Longyi1,Wang Dongdong1 and Li Mingpei1(College of Geosciences and Surveying Engineering,CUMTB,Beijing 100083,2.Shaanxi Coal Geological Exploration Research Institute,Xian,Shaanxi 710054) |
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| Abstract: | Using borehole core data and sequence stratigraphy related theories,methods carried out Upper Triassic Series Wayaobu Formation sequence stratigraphic and coal accumulation studies in the Ordos Basin.4 sequence boundaries based on regional unconformity interface,stream incised valley,color of strata and lithologic abrupt contact have been identified,and 3 third-order sequences and corresponding lowstand,lacustrine transgressive and highstand systems tracts subdivided.Viewing from time,the sequence I has bes... |
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| Keywords: | sequence stratigraphy coal accumulation Wayaobu Formation Ordos Basin |
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