| 从汶川地震探讨隐爆与成矿过程 |
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| 引用本文： | 梁光河.从汶川地震探讨隐爆与成矿过程[J].岩石学报,2017,33(2):326-338. |
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| 作者姓名： | 梁光河 |
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| 作者单位： | 中国科学院矿产资源研究重点实验室, 中国科学院地质与地球物理研究所, 北京 100029;中国科学院大学, 北京 100049 |
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| 基金项目： | 本文受中国科学院深部资源探测核心装备研发（ZDYZ2012-1-06）资助. |
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| 摘 要： | 关于地震的成因机制目前还存在很大争议,2008年汶川大地震后的探槽、钻探和测井及地球物理勘探资料研究表明,汶川地震是一个从西南往东北方向渐进的隐爆过程。通过进一步对比国外地震的研究结果推测,地震的隐爆动力机制包含两个方面,其一是地下流体相变膨胀爆炸,其二是地下深处的累积负电荷放电(地下雷电)。然后通过对比斑岩矿床的成矿机制说明地震是一个压力温度释放过程,可以满足斑岩型矿床成矿的压力、温度、酸碱度等变化要素。本次地震富集了磷、硫、铁、锰等元素。这说明地震是一种由断裂运动激发引起的地下隐爆和成矿过程。
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| 关 键 词： | 汶川地震 隐爆 成因机制 成矿过程 |
| 收稿时间： | 2015/5/30 0:00:00 |
| 修稿时间： | 2016/10/18 0:00:00 |
Preliminary study of the relationship between cryptoexplosion and ore-forming process from Wenchuan earthquake |
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| LIANG GuangHe.Preliminary study of the relationship between cryptoexplosion and ore-forming process from Wenchuan earthquake[J].Acta Petrologica Sinica,2017,33(2):326-338. |
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| Authors: | LIANG GuangHe |
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| Institution: | Key Laboratory of Mineral Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China;University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | At present there are still a lot of controversy about the genetic mechanism of earthquake, in this paper, at first we analysis many materials include trench, drilling, well logging and geophysical prospecting data, all results show that Wenchuan earthquake is a kind of cryptoexplosion process developed gradually from southwest to northeast. By further comparing the results of abroad earthquake study, we speculate that the explosive power of earthquake mechanism includes two aspects, one is the expansion of fluid phase change that cause underground explosion, the other is discharge (lightning) with leakage of the underground accumulated negative charges. Then through comparing the metallogenic mechanism of porphyry deposit, we learn that earthquake is a releasing process of pressure and temperature, which can meet the basic needs about elements change for porphyry deposit such as pressure, temperature and PH value. Wuchuan earthquake enriched phosphorus, sulfur, iron, manganese and other elements. At last we come to a conclusion that earthquake is a kind of underground concealed explosion process and metallogenic process fired by fault movement. |
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| Keywords: | Wuchuan earthquake Cryptoexplosion Genetic mechanism Ore-forming process |
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