| 甘蒙北山北带古生代地壳演化与成矿作用 |
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| 引用本文： | 孙新春,张雨莲,高永伟.甘蒙北山北带古生代地壳演化与成矿作用[J].甘肃地质学报,2011(2):45-50. |
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| 作者姓名： | 孙新春 张雨莲 高永伟 |
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| 作者单位： | 甘肃省地质调查院;西安地质矿产研究所; |
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| 摘 要： | 北山北带古生代期间先后经历了两期板块构造体制和两次主要的造山作用。早古生代以沙泉子—明水—小黄山蛇绿岩带洋壳残片,显示俯冲带的存在,早泥盆世闭合、碰撞造山,这是早期板块体制。与此同时形成了一系列的金属矿床（点）,比如方山口、双鹰山和塔水等钒—磷—铀或磷矿床（点）,白云山—东七一山火山热液—沉积型的铜铁矿床（点）,公婆泉...
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| 关 键 词： | 地壳演化 成矿作用 古生代 甘蒙北山 |
PALEOZOIC CRUSTAL EVOLUTION AND MINERALIZATION OF THE NORTHERN BEISHAN IN GANSU |
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| SUN Xin-chun,ZHANG Yu-lian and GAO Yong-wei.PALEOZOIC CRUSTAL EVOLUTION AND MINERALIZATION OF THE NORTHERN BEISHAN IN GANSU[J].Acta Geologica Gansu,2011(2):45-50. |
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| Authors: | SUN Xin-chun ZHANG Yu-lian and GAO Yong-wei |
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| Institution: | SUN Xin-chun1,ZHANG Yu-lian2,GAO Yong-wei2(1.Geological Survey of Gansu Province,Lanzhou 730000,China,2.Xi'an Institute of Geology and Mineral resources) |
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| Abstract: | There are two main plate tectonics systems and orogenic process in north part of Beishan.The existence of Palaeozoic oceanic crust residual ophiolite in Shaquanzi-Mingshui-Xiaohuangshan is the evidence of subduction zone.During early Devonian,the plates collided,and formed collisional orogney,while many metallic deposits were formed,such as Fangshankou,Shuangyingshan and Tashui V-P-U or P deposits,Baiyunshan-dongqiyishan volcanogene hydrothermal-sedimental Cu-Fe deposits.Late Palaeozoic,subduction zone fell... |
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| Keywords: | crustal evolution mineralization Palaeozoic Beishan in Gansu |
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