| 论秦岭碰撞造山作用对华北石炭二叠纪海侵过程的控制 |
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| 引用本文： | 陈世悦.论秦岭碰撞造山作用对华北石炭二叠纪海侵过程的控制[J].沉积与特提斯地质,1998,18(2):48-54. |
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| 作者姓名： | 陈世悦 |
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| 作者单位： | 石油大学勘探系 |
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| 摘 要： | 晚古生代—三叠纪是秦岭造山带主造山作用的碰撞造山期，其中石炭二叠纪是点接触至面接触碰撞的阶段。华北石炭二叠纪发育有４次较大规模的海侵，时代分别为Ｃ２１－Ｃ１－１２，Ｃ１－２２－Ｃ２２，Ｐ１２和Ｐ１３。岩相古地理制图及海侵沉积单元空间展布规律的分析结果表明，海侵来自华北地块南侧的秦岭残余海盆，且海侵具有由东向西逐渐推进之势。这一海侵过程是受华北地块东低西高的古地理格局及秦岭造山带以小秦岭地区为中心呈双剪刀状反向穿时碰撞造山作用控制的结果
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| 关 键 词： | 碰撞造山作用 海侵 残余海盆 石炭二叠纪 秦岭造山带 华北 |
The controls of the collisional orogenesis in the Qinling Mountains on the Carboniferous-Permian transgressional processes in North China |
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| Chen Shiyue.The controls of the collisional orogenesis in the Qinling Mountains on the Carboniferous-Permian transgressional processes in North China[J].Sedimentary Geology and Tethyan Geology,1998,18(2):48-54. |
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| Authors: | Chen Shiyue |
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| Institution: | Chen Shiyue Department of Exploration,China University of Petroleum,Dongying |
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| Abstract: | The Late Palaeozoic-Triassic is the collisional orogenic period of the major orogenesis in the Qinling orogenic belt,where the collisional orogenesis operated in the forms of point contact and plane contact during the Carboniferous-Permian when four phases of large scale transgressions once occurred in North China,including C 2 1-C 1-1 2,C 1-2 2-C 2 2,P 1 1 and P 1 3,respectively,The research of sedimentary facies and palaeogeographic mapping and spatial distribution of the transgressional depositional units indicate that the transgressions originated in the Qinling residual sea basin south of the North China block,and progressively prograded from east to west.These transgressional processes are generally governed by both the palaeogeographic framework of the North China block being higher in the west and lower in the east,and shear reverse diachronous collisional oeogenesis centred by the Xiaoqinling region within the Qinling orogenic belt. |
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| Keywords: | collisional orogenesis transgression residual sea basin Carbonifreous-Permian Qinling orogenic belt North China |
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