| 望湘岩基南部单元—序列体制的探讨 |
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| 引用本文： | 刘士寄.望湘岩基南部单元—序列体制的探讨[J].湖南地质,1991,10(2):107-114. |
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| 作者姓名： | 刘士寄 |
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| 作者单位： | 湖南省地质矿产局区调所 湘潭411000 |
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| 摘 要： | 笔者在前人资料的基础上,通过部分野外调查工作,应用侵入体一单元一序列三级体制,将望湘岩基南部侵入体重新厘定,归并为8个单元,组合成两个序列。认为这两个序列是相隔4 Ma的同源岩浆两次脉动式上侵的结果,8个单元是两次岩浆上侵后分别结晶分异的产物。根据野外的接触关系,确认汉家山单元(B岩型)的定位时间晚于坝头岭单元和朱家冲单元(C岩型)。并依据各单元的矿物成分、化学成分、微量元素含量的变化,重新厘定了岩浆的演化顺序。
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| 关 键 词： | 地质填图 侵入体 序列 格子 |
DISCUSSION ON THE UNIT-SEQUENCE SYSTEM OF SOUTHERN WANXIAN BATHLITH |
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| Liu Shiqi.DISCUSSION ON THE UNIT-SEQUENCE SYSTEM OF SOUTHERN WANXIAN BATHLITH[J].Hunan Geology,1991,10(2):107-114. |
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| Authors: | Liu Shiqi |
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| Institution: | Regional Geologic Survey Institute of Hunan Bureau of Geology and Mineral Resources |
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| Abstract: | On the basis of the former's data, through some field investigation, according to the intrusive-unit-sequence three order system, the author redefined the intrusions of southern wanxian bathlith, which were classified into 8 units, and incorporated into 2 sequences. The 2 sequences are resulted from 2 pulse intruding of magma from the same source between a lapse of 4 Ma, and the 8 units are the products of the crystalline differentiation of the two magma intrusions. The contact relation seen in the field indicate that Hanjiashan unit(lithotype B) was implaced later than Batouling unit and Zhujiachong unit(lithotype C). And according to the mineral composition, chemical composition and trace element content, the evolution series of the magma is redefined. |
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| Keywords: | Intrusive body Unit Sequence Pulse activity Magma swelling |
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