| 洛坝铅锌矿床的构造演化分析 |
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| 引用本文： | 韩崇德.洛坝铅锌矿床的构造演化分析[J].地球科学与环境学报,1992(4). |
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| 作者姓名： | 韩崇德 |
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| 作者单位： | 西安地质学院地勘系 710054 |
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| 基金项目： | 地矿部“七五”重点攻关项目 |
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| 摘 要： | 洛坝铅锌矿床位于黄诸关韧脆性变形带所波及的范围内,断裂、褶皱、劈理、节理等形态构造类型均很发育,经对小型构造的统计及应力场分析证明,矿区变形主要是在海西—印支期长期存在的南北向古应力场持续作用下形成的。
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| 关 键 词： | 构造演化 形态构造 应力场 西秦岭 |
TECTONIC EVOLUTION ANALYSIS OF THE LUOBA Pb-Zn ORE DEPOSITS |
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| Han Chongde.TECTONIC EVOLUTION ANALYSIS OF THE LUOBA Pb-Zn ORE DEPOSITS[J].Journal of Earth Sciences and Environment,1992(4). |
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| Authors: | Han Chongde |
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| Institution: | Xi'an College of Geology |
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| Abstract: | The Luoba ore deposits lie within the limits reached by the Huang Zhu Guaa ductility-brittle deformation belts and the tectonic types there, such as faults, folds, cleavages and joint, all developed very well.The tectonic form in the ore area is aa anticlinorium, in which a few important strike-thrusting faults have grown up on the axis and the both flanks.The analysis of stress field and the statistics of the bedding plane, cleavages and joints show that the tectonic regime was formed under the effect of a long-time ancient North-South stress field of the Hercynian-Indo-China orogeny.The derection of the principal stress was considerably transferred.The regional tectonic evolution is divided into five phases: synsedimentary tectonization, solid-state flow deformation piorid, prefolding deformation piorid,principal tectonic phase and late folding deformation phase.According to the tectonic-formation data concerned an idea about the kinetic model of the Eastern Tethys tectonic evolution relating to the western Qinling tectonic evolution has been put forward. |
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| Keywords: | Eastern Tethys western Qinling macroscopic structure minor structure stress field |
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