| 喀雅克登塔格地区古元古代金水口变质侵入岩(体)的发现及其地质意义 |
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| 引用本文： | 张金明,王钦元,许海全,严玉峰.喀雅克登塔格地区古元古代金水口变质侵入岩(体)的发现及其地质意义[J].西北地质,2012(3):13-19. |
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| 作者姓名： | 张金明 王钦元 许海全 严玉峰 |
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| 作者单位： | 青海省地质调查院/青海省青藏高原北部地质过程与矿产资源重点实验室 |
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| 基金项目： | 中国地质调查局地质大调查项目(项目编号:1212010710321) |
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| 摘 要： | 在喀雅克登塔格地区古元古代金水口群片麻岩、大理岩中,发现了一套变质侵入体。岩性为眼球状黑云二长片麻岩,经同位素年龄测定时代为新元古代,侵入体具有过铝钙碱性系列的特征,是同碰撞环境下岩浆作用产物。该套变质侵入岩的发现,对于东昆仑西段前震旦纪基底的深入研究及更进一步恢复和确定喀雅克登塔格构造岩浆带发展演化具有重要意义。
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| 关 键 词： | 变质侵入体 同碰撞环境 东昆仑 |
Discovery and Geological Significance of Metamorphic and Intrusive Rock (System) of Kayakedengtage Region Intruded Into Jinshuikou Paleo-proterozic Rock |
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| ZHANG Jin-ming,WANG Qin-yuan,XU Hai-quan,YAN Yu-feng.Discovery and Geological Significance of Metamorphic and Intrusive Rock (System) of Kayakedengtage Region Intruded Into Jinshuikou Paleo-proterozic Rock[J].Northwestern Geology,2012(3):13-19. |
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| Authors: | ZHANG Jin-ming WANG Qin-yuan XU Hai-quan YAN Yu-feng |
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| Institution: | (Qinghai Institute of Geological Survey/Qinghai Province Key Laboratory of Geological Process and Mineral Resources of Northern Qinghai-Tibet Plateau, Xining 810012,China) |
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| Abstract: | Metamorphic intrusive rocks (bodies) into Jinshuikou rock group of the Paleo-proterozic were found. The isotope age determination shows they are the Neo-Proterozoic. The metamorphic intrusive rocks (bodies) derived with aluminum calcalkaline series, and resulted from a tectonic environment of synchronous collision. The discovery of metamorphic intrusive rocks (rodies) has important significance to a thorough invest-tigation and study of Presinian period basement in the west of eastern Kunlun Mt. And it is of great significance to resume or confirm the developing and evolvement history of Qimantage tectono-magma belt. |
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| Keywords: | metamorphic and intrusive rock orogenesis with the collision eastern Kunlun |
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