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综合勘查方法在硬岩型锂矿找矿中的应用——以马尔康稀有金属矿田加达锂矿为例
投稿时间:2019-10-30  修订日期:2020-06-18  点此下载全文
引用本文:马圣钞,王登红,刘善宝,王成辉,代鸿章,饶魁元,丁晓平,朱海洋,邓子清,郭玮鹏.2020.综合勘查方法在硬岩型锂矿找矿中的应用——以马尔康稀有金属矿田加达锂矿为例[J].地质学报,94(8):2341-2353.
MA Shengchao,WANG Denghong,LIU Shanbao,WANG Chenghui,DAI Hongzhang,RAO Kuiyuan,DING Xiaoping,ZHU Haiyang,DENG Ziqing,GUO Weipeng.2020.The application of comprehensive prospecting methods on the hard rock type lithium deposit——a case study of the Jiada lithium mine in the Maerkang rare metals orefield[J].Acta Geologica Sinica,94(8):2341-2353.
DOI:10.19762/j.cnki.dizhixuebao.2020239
摘要点击次数: 150
全文下载次数: 117
作者单位E-mail
马圣钞 1) 中国地质科学院矿产资源研究所自然资源部成矿作用与资源评价重点实验室北京100037 mashengchao2009@126.com 
王登红 1) 中国地质科学院矿产资源研究所自然资源部成矿作用与资源评价重点实验室北京100037 wangdenghong@vip.sina.com 
刘善宝 1) 中国地质科学院矿产资源研究所自然资源部成矿作用与资源评价重点实验室北京100037  
王成辉 1) 中国地质科学院矿产资源研究所自然资源部成矿作用与资源评价重点实验室北京100037  
代鸿章 1) 中国地质科学院矿产资源研究所自然资源部成矿作用与资源评价重点实验室北京100037  
饶魁元 2) 四川省核工业地质局282大队四川德阳618000  
丁晓平 2) 四川省核工业地质局282大队四川德阳618000  
朱海洋 2) 四川省核工业地质局282大队四川德阳618000  
邓子清 2) 四川省核工业地质局282大队四川德阳618000  
郭玮鹏 2) 四川省核工业地质局282大队四川德阳618000  
基金项目:本文为国家重点研发计划项目(编号2017YFC0602700、2017YFC0602701)和中国地质调查项目(编号DD20190379)及中央级公益性科研院所基本科研业务费(编号JYYWF20183701、JYYWF20183704)资助的成果。
中文摘要:松潘- 甘孜造山带马尔康矿田是我国目前面积最大的伟晶岩型稀有金属矿田,分布有业隆、李家沟、党坝等多处大—中型锂辉石矿床。由于地表基岩露头有限,水系切割强烈,在深部寻找隐伏矿脉的难度逐渐增加。本文以马尔康矿田东北部新发现的加达大型锂辉石矿床为例,论述了地质填图、高密度电法等在寻找隐伏矿脉中的应用。本次勘查通过地质填图圈定的残- 坡积锂辉石伟晶岩转石带或伟晶岩露头确定了脉体走向,通过高密度电法测量圈定的陡倾高阻异常确定了脉体倾向,通过钻探工程控制了隐伏矿脉。综合分析显示,陡倾高阻异常带延伸至地表位置与地表锂辉石伟晶岩转石带或伟晶岩脉露头位置吻合,隐伏高阻异常空间分布与隐伏锂辉石伟晶岩脉具有相关性,表明传统勘查方法在寻找伟晶岩型锂矿为代表的硬岩型锂矿床的有效性,并指出区域成矿潜力和找矿方向。
中文关键词:马尔康  加达  锂辉石伟晶岩  找矿方法  成矿规律
 
The application of comprehensive prospecting methods on the hard rock type lithium deposit——a case study of the Jiada lithium mine in the Maerkang rare metals orefield
Author NameAffiliationE-mail
MA Shengchao 1) MNR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources,Chinese Academy of Geological Sciences, Beijing, 100037 mashengchao2009@126.com 
WANG Denghong 1) MNR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources,Chinese Academy of Geological Sciences, Beijing, 100037 wangdenghong@vip.sina.com 
LIU Shanbao 1) MNR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources,Chinese Academy of Geological Sciences, Beijing, 100037  
WANG Chenghui 1) MNR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources,Chinese Academy of Geological Sciences, Beijing, 100037  
DAI Hongzhang 1) MNR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources,Chinese Academy of Geological Sciences, Beijing, 100037  
RAO Kuiyuan 2) The 282 Brigade of Sichuan Nuclear Geology,Deyang, Sichuan, 618000  
DING Xiaoping 2) The 282 Brigade of Sichuan Nuclear Geology,Deyang, Sichuan, 618000  
ZHU Haiyang 2) The 282 Brigade of Sichuan Nuclear Geology,Deyang, Sichuan, 618000  
DENG Ziqing 2) The 282 Brigade of Sichuan Nuclear Geology,Deyang, Sichuan, 618000  
GUO Weipeng 2) The 282 Brigade of Sichuan Nuclear Geology,Deyang, Sichuan, 618000  
Abstract:The Maerkang rare metal orefield located in the eastern of Songpan- Ganzi orogenic belt is presently the largest pegmatite- type rare metal orefield in China. There are several medium to large scale spodumene pegmatite deposits, including Guanyinqiao, Yelong, Lijiagou, Dangba etc. Due to the limited surface bedrock outcrops and deep topographical incision by the rivers, it is more difficult to find hidden ore veins until now, thus slowing down the prospecting progress. In this paper, we consider the new development of ore- prospecting in the Jiada area as an example, and discuss the application of metallogenic theories and prospecting methods. The main contents are as follows: based on the original outcrop of spodumene pegmatite and the eluvial- slope gravel belts delineated by geological mapping, the trend of hidden pegmatite vein is deduced. The tendency of pegmatite is also inferred by combining the hidden high resistivity anomaly zone delineated by multi- electrode electrical measurement. Finally, the position of drilling hole is arranged, and the hidden lodes are controlled. Those prospecting methods are of great use in determining the existence of hidden lodes and their continuity between the outcrops of pegmatite. It is also effective in describing the conformity between the high resistance abnormal zone and the outcrop of spodumene pegmatite or the eluvial- slope gravel belts. Finally, the prospecting strategy for the eastern Maerkangorefield is determined.
keywords:Maerkang  Jiada  spodumene pegmatite  prospecting method  ore- forming regularity
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