| 广西大厂隐伏花岗岩体的岩石类型及演化 |
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| 引用本文： | 高永文,袁奎荣. 广西大厂隐伏花岗岩体的岩石类型及演化[J]. 桂林工学院学报, 1988, 0(2) |
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| 作者姓名： | 高永文 袁奎荣 |
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| 作者单位： | 桂林冶金地质学院(高永文)，桂林冶金地质学院(袁奎荣) |
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| 摘 要： | 以广西大厂锡-多金属矿田10线地质剖面为重点,对隐伏花岗岩体的内部结构及岩石学、地球化学特征进行了研究。结果表明,大厂隐伏岩体的内部结构不均一,据多方面证据可划分出两个基本的岩石类型,即斑状花岗岩和粒状花岗岩。虽然二者在矿物成分和岩石化学成分上差别不大,但在时、空分布和成岩地质环境上具继承演变关系。
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| 关 键 词： | 花岗岩 地质时代 空间分布 岩浆演化 广西 大厂 |
THE ROCK TYPE AND EVOLUTION OF DACHANG HIDDEN GRANITES,GUANGXI |
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| Gao Yongwen,Yuan Kuirong Guilin College of Geology. THE ROCK TYPE AND EVOLUTION OF DACHANG HIDDEN GRANITES,GUANGXI[J]. Journal of Guilin University of Technology, 1988, 0(2) |
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| Authors: | Gao Yongwen Yuan Kuirong Guilin College of Geology |
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| Affiliation: | Gao Yongwen;Yuan Kuirong Guilin College of Geology |
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| Abstract: | In this paper, the authors approach the inner structure, petrologicaland geochemical features of the hidden granite body on the tenth geolo-gical section of Dachang tin-polymetal ore fields, Guangxi,China. Theresults suggest that the inner facies of Dachang hidden granite pluton beinhomogeneous and determmed two main types,the porphyritic granite andthe grantilar granite. Comparing the porphyritic with the granular, thereare few differences in mineral assenblages and chemical constituents, buton rock density, Rb-Sr isotopic age, REE and the triclinic orderingof the potash feldspar, which showing the evolutionary relationshipbetween the former and the latter in time, spacial distribution andpetrogenic environment. |
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| Keywords: | granite geological age spacial distribution magmatic evolution Guangxi Dachang |
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