| 东昆仑西段黑山构造蛇绿岩带特征 |
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| 引用本文： | 王向利,高小平,刘幼骐,李新林,周小康,崔继刚,戴新宇,何立新,曾忠诚.东昆仑西段黑山构造蛇绿岩带特征[J].西北地质,2010,43(4):218-231. |
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| 作者姓名： | 王向利 高小平 刘幼骐 李新林 周小康 崔继刚 戴新宇 何立新 曾忠诚 |
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| 作者单位： | 陕西省地质调查院,陕西西安710065 |
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| 基金项目： | 新疆维吾尔自治区矿产资源补偿费地质勘查项目 |
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| 摘 要： | 通过对黑山构造蛇绿岩中基性火山岩、基-超基性岩的岩石组合及其岩石学、岩石化学、微量元素、稀土元素等特征研究认为:黑山构造蛇绿岩带是祁漫塔格结合带重要物质组分,是在加里东晚期板块俯冲-碰撞过程中逐渐演化形成的,区域上与那棱格勒构造带相连,是柴达木陆块与东昆北陆块的分界断裂。通过同位素地质年龄研究认为该蛇绿岩形成于南华—奥陶纪,构造就位于志留纪—早中泥盆世。对东昆仑构造演化提供了重要新资料。指出黑山构造蛇绿岩以北的祁漫塔格地区(柴达木陆块)发育与岩浆岩、变质岩有关的铜、钨、钛、铁等与热液、区域变质有关的内生矿产;以南的库木库里盆地发育砂砾岩型铜矿、砂金、石膏和石盐等外生矿产。
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| 关 键 词： | 黑山 蛇绿岩 柴达木陆块 东昆北陆块 |
The Characteristics of Heishan Structural Ophiolite Belt in the West Part of East Kunlun |
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| WANG Xiang-li,GAO Xiao-ping,LIU You-qi,LI Xin-lin,ZHOU Xiao-kang,CUI Ji-gang,DAI Xin-yu,HE Li-xin,ZENG Zhong-cheng.The Characteristics of Heishan Structural Ophiolite Belt in the West Part of East Kunlun[J].Northwestern Geology,2010,43(4):218-231. |
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| Authors: | WANG Xiang-li GAO Xiao-ping LIU You-qi LI Xin-lin ZHOU Xiao-kang CUI Ji-gang DAI Xin-yu HE Li-xin ZENG Zhong-cheng |
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| Institution: | (Shaanxi Geological Survey,Xi＇an 710054,China) |
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| Abstract: | Through research on the rock assemblage of basic volcanic rock and basic-ultrabasic volcanic rock as well as their feature on petrology,lithochemistry,trace element and REE etc,it is suggested that Heishan structural ophiolite belt is an important material component of Qimantage binding belt,which was formed gradually in the process of plate＇s dive-collision and connected with Nalinggele structural belt,and was the division fault between Qaidam basin and north block of East Kunlun.Comprehensive researches from isotopic dating have concluded that the Heishan ophiolite was formed in Nanhua Ordovician period and its structural location was formed in Silurian period-early Middle Devonian epoch.This paper provides new important information for the structural evolution of East Kunlun and indicates that in the Qimantage area（Qaidam basin）,at the north of Heishan Structural Ophiolite Belt,generated some endogenetic deposits which were concerned with hydrothermal fluid and region metamorphism,such as copper,tungsten,titanium and iron,which were related to magmatic rocks and metamorphic rocks;and in the Kumukuli basin（the northern block of East Kunlun）,at the south of Heishan Structural Ophiolite Belt,occur some exogenetic ore deposits,such as sandstone-conglomerate type copper deposits,placer gold,gypsum,and halite etc. |
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| Keywords: | Heishan ophiolite Qaidam basin north block of east Kunlun |
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