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引用本文:王先广,胡正华,黄秋芸,易伟,陈国华,胡朗明,游玮. 九瑞矿集区通江岭铜钨矿成矿岩浆岩锆石U-Pb年龄及意义[J]. 中国地质, 2019, 46(4): 832-840.
WANG Xianguang,HU Zhenghua,HUANG Qiuyun,YI Wei,CHEN Guohua,HU Langming,YOU Wei. Zircon U-Pb age of ore-forming magmatic rocks in the Tongjiangling coppertungsten deposit in the Jiurui ore concentration area and its significance[J]. Geology in China, 2019, 46(4): 832-840(in Chinese with English abstract).
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九瑞矿集区通江岭铜钨矿成矿岩浆岩锆石U-Pb年龄及意义
王先广1, 胡正华1, 黄秋芸1, 易伟1, 陈国华1, 胡朗明2, 游玮3
1.江西省地质勘查基金管理中心, 江西 南昌 330025;2.江西省地质矿产勘查开发局物化探大队, 江西 南昌 330000;3.江西省地质调查研究院, 江西 南昌 330000
摘要:
通江岭铜钨矿区内矿体总体走向北东、倾向南东,呈似层状、透镜状产出于花岗闪长斑岩与茅口组碳酸盐接触带附近,矿石矿物以黄铜矿、白钨矿为主。区内成矿岩浆岩为花岗闪长斑岩,其锆石U-Pb年龄为(143.31±2.70)Ma。通江岭矿区存在“上铜下钨铜”的矿化分带特征,矿区石炭系、奥陶系碳酸盐岩与花岗闪长斑岩接触带或五通面、奥陶—志留系所形成的硅钙界面,找钨潜能大。
关键词:  铜钨矿  花岗闪长斑岩  锆石U-Pb  通江岭  九瑞
DOI:10.12029/gc20190413
分类号:P588.13;P597;P618.41;P618.67
基金项目:中国地质调查局项目(DD20160082;DD20190012)与江西省地勘基金项目(20160037)联合资助。
Zircon U-Pb age of ore-forming magmatic rocks in the Tongjiangling coppertungsten deposit in the Jiurui ore concentration area and its significance
WANG Xianguang1, HU Zhenghua1, HUANG Qiuyun1, YI Wei1, CHEN Guohua1, HU Langming2, YOU Wei3
1.Administration of Geological Exploration of Jiangxi Province, Nanchang 330025, Jiangxi, China;2.Geophysical and Geochemical Exploration Party,, Jiangxi Bureau of Geology and Mineral Exploration and Development, Nanchang 330030, Jiangxi, China;3.Geological Survey of Jiangxi Province, Nanchang 330000, Jiangxi, China
Abstract:
The orebodies in the Tongjiangling copper-tungsten mining area generally strike northeast and dip southeast, and occur as layers and lenses near the contact zone between the granodiorite porphyry and carbonate of the Maokou Formation. The ore minerals are mainly composed of chalcopyrite and scheelite. The metallogenic magmatic rocks in this area are granodiorite porphyry with zircon U-Pb age of (143.31+0.62) Ma. Mineralization zoning in the Tongjiangling mining area is characterized by "copper in the upper part and copper and tungsten in the lower part". The contact zone between Carboniferous and Ordovician carbonate rocks and granodiorite porphyry or the Wutong plane and the silica-calcium interface formed during Ordovician-Silurian in the mining area have a great potential for tungsten exploration.
Key words:  copper-tungsten deposit  granodiorite porphyry  zircon U-Pb  Tongjiangling  Jiurui