| 甘肃省皋兰县什川岩体的地质学特征 |
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| 引用本文： | 梁志录,刘宏伦,王云斌,康胜松,付国民.甘肃省皋兰县什川岩体的地质学特征[J].甘肃地质学报,2007,16(4):31-36. |
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| 作者姓名： | 梁志录 刘宏伦 王云斌 康胜松 付国民 |
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| 作者单位： | 甘肃省地矿局第三地勘院 甘肃兰州73000(梁志录)，云南地矿资源股份有限公司 云南昆明671000(刘宏伦)，西北有色地质研究院 陕西西安710054(王云斌)，长安大学 陕西西安710054(康胜松，付国民) |
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| 基金项目： | 中国地质调查局地质调查项目(项目编号J6.2.7)，兰州市幅1∶25万区域地质调查项目(J48C004002) |
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| 摘 要： | 什川岩体出露于甘肃省皋兰县什川镇一带,侵位于中元古代的变质地层——皋兰岩群中,岩体从早到晚依次由中细粒黑云母斜长花岗岩侵入体、中细粒黑云花岗闪长岩侵入体、中细粒二长花岗岩侵入体、中粗粒二长花岗岩侵入体和细粒二长花岗岩侵入体组成。各侵入体之间的接触关系有脉动和涌动两种,为同源岩浆演化的产物,且侵入体中包体发育,岩性较复杂,形态各异,并普遍有原生流动构造、流动变形构造、叠加变形构造等样式,产状多变。岩浆以被动就位的岩墙扩张模式为主,兼具强力就位的特点,就位时代为志留纪晚期。
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| 关 键 词： | 皋兰县什川 侵入体 构造特征 |
| 文章编号： | 1004-4116（2007）04-0031-O006 |
| 收稿时间： | 2007-07-18 |
GEOLOGICAL CHARACTERISTICS OF SHICHUAN ROCK MASS
IN GAOLAN COUNTY OF GANSU PROVINCE |
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| LIANG Zhi-lu,LIU Hong-lun,WANG Yun-bing,KANG Sheng-song and FU Guo-min.GEOLOGICAL CHARACTERISTICS OF SHICHUAN ROCK MASS
IN GAOLAN COUNTY OF GANSU PROVINCE[J].Acta Geologica Gansu,2007,16(4):31-36. |
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| Authors: | LIANG Zhi-lu LIU Hong-lun WANG Yun-bing KANG Sheng-song and FU Guo-min |
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| Institution: | 1.No.3 Geology and Mineral Exploration Team,Gansu Provincial Bureau of Geology and Mineral Exploration and Development,Lanzhou 730020,China;2.Yunan Geology and Mineral Resources Limited Company,Kunming 671000,China; 3.Northwest Geological Institute of Nonferrous Metals,Xi’an 710054,China;4.Chan’an University,Xi’an 710054,China) |
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| Abstract: | Shichuan rock mass outcrop at Shichuan township of Gaolan County in Gansu Province intruded into Gaolan Rock Group of middle Proterozoic metamorphic strata.The rock mass are divided respectively to mid-fine granular biotite plagiogranite unit,mid-fine granular biotite granodiorite,mid-fine granular adamellite,mid-coarse adamellite and fine granular adamellite,between which relationships of pulsating and upwelling occurred,and they are formed from comagmatic evolution.The intrusive bodies,among which inclusions are developed,broadly have primary flow structure,flow and superimposed deformation structure with the various occurrences.The magma are forced intensively into emplacement mainly by the pattern of dike expansion at Late Silurian. |
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| Keywords: | Shichuan of Gaolan County intrusive body features of structure |
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