[1]王建中,赵玉梅,钱壮志,等.甘肃岷—礼成矿带钨矿地质特征及找矿方向[J].华东地质,2017,38(04):296-305.[doi:10.16788/j.hddz.32-1865/P.2017.04.008 甘肃岷—礼成矿带钨矿地]
 WANG Jian-zhong,ZHAO Yu-mei,QIAN Zhuang-zhi,et al.Geological features and prospecting direction of Tungsten deposits in the Min-Li metallogenic belt, Gansu Province[J].East China Geology,2017,38(04):296-305.[doi:10.16788/j.hddz.32-1865/P.2017.04.008 甘肃岷—礼成矿带钨矿地]
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甘肃岷—礼成矿带钨矿地质特征及找矿方向()
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《华东地质》[ISSN:2096-1871/CN:32-1865/P]

卷:
38
期数:
2017年04期
页码:
296-305
栏目:
矿床地质
出版日期:
2017-12-15

文章信息/Info

Title:
Geological features and prospecting direction of Tungsten deposits in the Min-Li metallogenic belt, Gansu Province
文章编号:
2096-1871(2017)04-296-10
作者:
王建中12赵玉梅3钱壮志2徐 刚2
(1. 中国人民武装警察部队黄金第五支队,西安 710100; 2. 长安大学西部矿产资源与地质工程教育部重点实验室,西安 710054; 3. 新疆地质矿产勘查开发局第七地质队,乌苏 833000)
Author(s):
WANG Jian-zhong12 ZHAO Yu-mei3 QIAN Zhuang-zhi2 XU Gang2
(1. No. 5 Gold Geological Party of Chinese People’s Armed Police Force, Xi’an 710100, China; 2. Key Laboratory of Western China’s Mineral Resources and Geological Engineering, Ministry of Education; Chang’an University, Xi’an 710054, China; 3.No.7 Geological Party of the Xinjiang Bureau of Geology and Mineral Exploration and Development, Wusu 833000, China)
关键词:
地质特征 找矿方向 钨矿床 岷—礼成矿带 甘肃
Keywords:
geological feature prospecting direction tungsten deposit Min-Li metallogenic belt Gansu Province
分类号:
P618.67
DOI:
10.16788/j.hddz.32-1865/P.2017.04.008 甘肃岷—礼成矿带钨矿地
文献标志码:
A
摘要:
通过对岷—礼成矿带寨上钨矿床和雪坪沟钨矿床地质特征及其与成矿有关的岩(脉)体进行对比研究,分析岩(脉)体的成矿专属性,结合区域地质背景,探讨该成矿带钨矿床的找矿方向。寨上钨矿床和雪坪沟钨矿床分别为破碎蚀变岩型和隐爆角砾岩型钨矿床,其成矿物质来源于岩浆期后热液,时空和成因与同时代的岩(脉)体密切相关,是晚三叠世(220~210 Ma)岩浆作用及其过程的产物。“五朵金花”岩体群属富钨的“S”型花岗岩类,具有相似的地球化学特征和同源性,其分布范围与W、Sn、Mo、Bi、Be组合异常吻合,是岷—礼成矿带找钨的首选找矿靶区。建议围绕(隐伏)岩(脉)体,重点开展常家山、梅川W异常查证,寻找新矿床(体)。
Abstract:
This study carried out a detailed comparative analysis of geological features and mineralization-related intrusion or dykes in the Zhaishang tungsten deposit and the Xuepinggou tungsten deposit, both of which are distributed along the Min-Li metallogenic belt in West Qinling. In conjunction with the regional geological features, metallogenic characteristics of rocks and related dykes were discussed to better understand the prospecting direction of tungsten mineralization in this area. The results show that the two deposits belong to the broken alteration rock type and cryptoexplosive breccia type tungsten deposits respectively, with ore-forming material derived from post-magma hydrothermal fluids. Their genesis was closely related to contemporaneous rocks or dykes in terms of time and space. The two deposits should be the products of magmatic activities during the Late Triassic(220~210 Ma). “Five Golden Flowers” intrusion group belongs to W-rich S-type granite, with similar geochemical characteristics and homology. In addition, its distribution is in agreement with anomalous areas of W, Sn, Mo, Bi and Be element combination, indicating that the intrusion group should be the preferential target for prospecting tungsten deposits in the Min-Li metallogenic belt. Therefore, this study suggests that prospecting should be concentrated on tungsten anomalous fields in the Changjiashan and Meichuan areas containing intrusions(dykes)so as to search new orebodies or deposits.

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备注/Memo

备注/Memo:
*收稿日期:2016-12-04 修订日期:2017-04-25 责任编辑:谭桂丽
基金项目:国家自然科学基金“新疆喀拉通克铜镍硫化物矿床成矿作用与深部地质过程(编号: 41372101)”资助。
第一作者简介:王建中,1978年生,男,博士,主要从事矿产勘查及矿床学研究工作。
更新日期/Last Update: 2017-12-19