| 维西—景洪裂陷带初步研究 |
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| 引用本文： | 王宝禄,李文昌.维西—景洪裂陷带初步研究[J].云南地质,2001,20(1):39-45. |
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| 作者姓名： | 王宝禄 李文昌 |
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| 作者单位： | 云南省地质调查院,云南,昆明,650011 |
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| 摘 要： | 位于兰坪－思茅坳陷带西侧近南北向的维西－无量山－景洪地质块体，根据地球物理资料结合地质综合分析，具有裂陷带的特征，自泥盆纪开始的地幔上隆，形成隆起带，地壳产生东西向拉张，局部出现火山活动，石炭纪至三叠纪以中酸性为主的火山岩浆大量喷发，早侏罗世关闭，中新生代沉积厚大碎屑岩系，伴随裂陷带的生成，演化形成许多大中型矿床。
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| 关 键 词： | 裂陷带 地球物理标志 形成机制 断裂构造 成矿关系 |
| 文章编号： | 1004-1885(2001)01-0039-07 |
| 修稿时间： | 2000年11月29 |
A PRELIMINARY STUDY ON THE WEIXI-JINGHONG FAULT DEPRESSION ZONE |
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| WANG Bao-lu,LI Wen-chang.A PRELIMINARY STUDY ON THE WEIXI-JINGHONG FAULT DEPRESSION ZONE[J].Yunnan Geology,2001,20(1):39-45. |
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| Authors: | WANG Bao-lu LI Wen-chang |
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| Abstract: | According to the geophysical data and geological comprehensive analysis,the nearly south-north Weixi-Wuliangshan-Jinghong geological bolck on the west side of Lanping-Simao depression zone is characterized by a fault depression zone.From Devonian,the mantle began to rise and form a lifting zone.And a east-west extension with local volcanism took place in the Earth crust.From Carboniferous to Triassic,there were a great amount of volcanic eruptions mainly intermediate-acidic in it,which was closed in Early Jurassic and with a thick clastic sediment of Mesozoic and Cenozoic.And many large or medium ore deposits were developed with the formation of this fault depression zone. |
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| Keywords: | Weixi-Jinghong Fault Depression Zone Study |
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