| 四川西部现代热泉沉积物地球化学特征及意义 |
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| 引用本文： | 王登红,付小方,应汉龙.四川西部现代热泉沉积物地球化学特征及意义[J].吉林大学学报(地球科学版),2007,37(5):878-883. |
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| 作者姓名： | 王登红 付小方 应汉龙 |
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| 作者单位： | 中国地质科学院,矿产资源研究所,北京,100037;四川地质矿产研究所,成都,610081;中国科学院,地质地球物理研究所,北京,100029 |
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| 基金项目： | 国家科技支撑计划“西部优势矿产资源潜力评价体系及集成示范研究”课题(2003BA612A-01)，中国地质大调查“中国成矿体系综合研究”项目(1212010634002)，“中国成矿体系与区域成矿评价”项目(K1.4)，“我国西部重要成矿区带矿产资源潜力评估”项目(200420190004)，“我国重要矿产和区域成矿规律研究”项目(1212010633903) |
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| 摘 要： | 西南三江地区现代热泉很发育,但以往对其成矿作用研究不够。笔者发现在四川西部义敦热坑和理塘热水塘两处热泉群产地普遍存在硅化和黄铁矿化现象。地表热泉沉积物主要是硅华和钙华及其过渡类型,大多数是硅华和钙华的混合堆积物。在地表泉华、断裂裂隙充填物及其蚀变围岩中存在金矿化,金质量分数从<0.1×10-6到1.89×10-6。泉华和蚀变围岩中亲花岗岩元素Li、Be、Mo、Ga、Rb、Cd等含量高于地壳丰度值,可作为找矿指示元素。热泉沉积物的地球化学特点总体上与现代海底热泉沉积物比较接近,但成因不同。鉴于三江地区热泉广布,成矿条件有利,建议加强勘查和研究,以期找矿突破。
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| 关 键 词： | 泉华 现代热泉 地球化学 金矿化 四川西部 |
| 文章编号： | 1671-5888（2007）05-0878-06 |
| 修稿时间： | 2007-04-09 |
Geochemistry and Significance of Modern Hot-Spring Sinters in Western Sichuan |
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| WANG Deng-hong,FU Xiao-fang,YING Han-long.Geochemistry and Significance of Modern Hot-Spring Sinters in Western Sichuan[J].Journal of Jilin Unviersity:Earth Science Edition,2007,37(5):878-883. |
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| Authors: | WANG Deng-hong FU Xiao-fang YING Han-long |
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| Institution: | 1. Institute of Mineral Resources, Chinese Academy of Geological Sciences ,Beijing 100037 ,China 2. Sichuan Institute of Geology and Mineral Resources ,Chengdu 610081,China 3. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029,China |
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| Abstract: | There are more than 800 modern hot-springs in western Sichuan, China,but few know-ledge has been obtained about hot-spring mineralization.Some new analytical data of siliceous and calc-sinters from Rekeng,Batang County,and Reshuitang,Litang County,are reported,indicating that gold mineralization in both area,with Au contents from <0.1 to 1.89g/t.Being high in Li,Be,Mo,Ga,Rb and Cd contents and low in Cu,Pb and Zn contents in sinters of gold mineralization can be used as an indicator for further prospecting.Terrestrial siliceous sinters are different from submarine chert for the highly input of Al and other landphile elements.So,some widely applied diagrams such as the FeMn-(Ni Co Cu) diagram by P.A.Rona(1978,1988) can be used to discrimination its origin,but some can not be used directly,such as the Al-Fe-Mn diagram by Adachi et al.(1986).It is urgent to investigate and research the mineralization feature and metallogenic regularity related to the modern hot-spring systems in western Sichuan and other sinters in the Sanjiang(Jinshajiang River,Nujiang River and Lancangjiang River) area. |
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| Keywords: | sinter modern hot-spring geochemistry gold mineralization western Sichuan |
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