| 不同伸展构造的形成深度和水平伸展量的估算 |
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| 引用本文： | 陈跃辉.不同伸展构造的形成深度和水平伸展量的估算[J].华东地质学院学报,1996,19(4):315-320. |
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| 作者姓名： | 陈跃辉 |
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| 作者单位： | 核工业总公司地质总局地质处 |
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| 摘 要： | 本文根据断陷盆地规模，盆内盖层厚度，地层产状等要素以及控盆地断裂的几何学和运动学特征，推导了不同类型伸展构造的形成深度和水平伸展计算模式，并以信江裂陷伸展构造，衡山，南雄，会昌热隆伸展构造和新一资重力伸展构造作为实例进行计算，结果表明，三种伸展构造的形成深度明显地分三个层次，反映了不同伸展构造形成的动力学机制特征和热隆隆伸展构造较大的水平伸展，合理地解释了小型断裂盆地内形成盖层厚盖沉积的原因。
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| 关 键 词： | 伸展构造 水平伸展 形成深度 伸展量 |
Quantitative Estimation of Forming Depth and Horizontal Extensional Quantity of Defferent Types of Extensional Tectonics |
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| Chen Yaohui.Quantitative Estimation of Forming Depth and Horizontal Extensional Quantity of Defferent Types of Extensional Tectonics[J].Journal of East China Geological Institute,1996,19(4):315-320. |
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| Authors: | Chen Yaohui |
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| Abstract: | The compute model of forming depth and horizontal extensional quantity of different types of extensional tctonics are deduced according to the scale of fault subsidece basin, the depth of inner basin cover,strata attitude and the characteristics of geometry and kinematics of fault which control ba sin. It is taken as examples for compute that Xin river chamic extensional tectonics,Hengshan,Nanxiong,Huichang thermal uplift extensional tectonics and Xin-Z,gravity extensional tectonics.The results show the forming depth of three types of extensional tectonics can be divided into three layers, and this is reoponsible to kinematics mechanism characteristics that form the different types of extensional tectonics.The big horizontal extension of thermal uplift extersional tectonics can rationally explain that thick copping deposition exists in small types of fault subsidence basin. |
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| Keywords: | extensional tectonics horizontal extension forming depth estimation |
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