| 利用岩石化学成分判断二连盆地形成的沉积构造环境 |
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| 引用本文： | 窦立荣,方杰.利用岩石化学成分判断二连盆地形成的沉积构造环境[J].矿物岩石,1997,17(1):50-57. |
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| 作者姓名： | 窦立荣 方杰 |
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| 作者单位： | [1]石油勘探开发科学研究院 [2]华北石油管理局研究院 |
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| 基金项目： | 中国石油天然气总公司“八五”重大科技攻关项目 |
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| 摘 要： | 二连盆地是海西期褶皱基底上发育起来的，为早白垩世断陷群。本文通过井下下白垩统巴花群４块砂岩、３块泥岩及１２块火山岩样品的镜下鉴定和化学成分测试及对比分析表明，早白垩世盆地形成的构造环境为受Ｉｚａｎａｇｉ板块向西俯冲的影响而形成的陆内裂谷，不同于渤海湾盆地早第三纪直接受太平洋板块俯冲作用而产生的主动大陆裂谷。
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| 关 键 词： | 岩石 化学成分 巴彦花群 沉积构造背景 盆地 |
JUDGING THE TECTONIC BACKGROUND OF SEDIMENTATION BASED ON THE CHEMICAL COMPOSITION OF ROCKS IN THE ERLIAN BASIN |
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| Dou Lirong,Li Jianzhong.JUDGING THE TECTONIC BACKGROUND OF SEDIMENTATION BASED ON THE CHEMICAL COMPOSITION OF ROCKS IN THE ERLIAN BASIN[J].Journal of Mineralogy and Petrology,1997,17(1):50-57. |
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| Authors: | Dou Lirong Li Jianzhong |
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| Abstract: | Erlian basin is the Early Cretaceous rift group formed and developed on the Hecynian folded belt.The analyses and comparison of mineral and chemical compositions of 4 sandstones,3 mudstones,and 12 volcanic rocks of the Bayanhua Group indicate that the genetic tectonic environment of Erlian basin was the inner rift affluenced by the western subduction of the Izanagi Plate,which is different from the Bohai bay basin,an active rift basin caused by the subduction of the Pacific Plate during the Tertiary. |
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| Keywords: | chemical composition of rock Bayanhua Group graywacke tectonic background of sedimentation Erlian basin |
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