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引用本文:胡海珠1 李 诺2 邓小华2 陈衍景2 李 毅1. 秦岭地区印支期钼矿化特征及找矿前景[J]. 中国地质, 2013, 40(2): 549-565.
HU Hai-Zhu1, LI Nuo2, DENG Xiao-Hua2, CHEN Yan-Jiang2, LI Yi1. Indosinian Mo mineralization in Qinling area and prospecting potential[J]. Geology in China, 2013, 40(2): 549-565(in Chinese with English abstract).
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秦岭地区印支期钼矿化特征及找矿前景
胡海珠1 李 诺2 邓小华2 陈衍景2 李 毅1
作者单位
胡海珠1 李 诺2 邓小华2 陈衍景2 李 毅1 1.河南省有色金属地质勘查总院河南 郑州 4500522.北京大学造山带与地壳演化教育部重点实验室北京 100871 
摘要:
提要:秦岭地区印支期钼矿床包括3种类型:碳酸岩脉型、断控石英脉型及斑岩型。碳酸岩脉型钼矿床与火成碳酸岩密切相关,矿体以含钼碳酸岩脉形式产出,成矿元素出现特殊的Mo+U+REE组合,以黄龙铺和黄水庵钼矿为典型代表。断控石
关键词:  印支期  钼矿化  成矿预测  秦岭
DOI:
分类号:
基金项目:国家973项目(2006CB4035008)和自然科学基金项目(40425006)资助。
Indosinian Mo mineralization in Qinling area and prospecting potential
HU Hai-Zhu1, LI Nuo2, DENG Xiao-Hua2, CHEN Yan-Jiang2, LI Yi1
Abstract:
Abstract:Three types of Indosinian Mo mineralization can be observed in the Qinling area, namely carbonatite-type, fault-controlled quartz vein type and porphyry type. Carbonatite-type Mo deposits are represented by the Huanglongpu and Huangshuian deposits. They are spatially and genetically associated with magmatic carbonatite, and the ore bodies are present as Mo-bearing carbonatite veins, with specific Mo+U+REE mineralization. Fault-controlled quartz vein type Mo deposits are represented by the Waifangshan Mo ore district (composed of Zhifang and Qianfanling Mo deposits), Dahu Au-Mo deposits and Majiawa Au-Mo deposits. They occur as fault-controlled quartz veins, and the hydrothermally altered wall rocks can be mineralized, either. Such deposits share similar geological and fluid inclusion features with the orogenic type deposit, and are regarded as its medium to high temperature endmembers. Porphyry-type Mo deposits, represented by the Wenquan Mo deposit, are associated with Indosinian intermediate-acid granite porphyry, and molybdenite crystals occur as veinlets or veinlet-disseminations. Typical porphyry type hydrothermal alterations include potassic alteration, phyllic alteration, chloritization, epidotization and carbonation. It is concluded that the carbonatite-alkali rocks in the northernmost part of the Qinling Orogen are in favor of carbonatite-type Mo mineralization, the area between Machaoying fault and Sanbao fault in the southern margin of the North China Craton is favorable for fault-controlled quartz-vein type Mo mineralization, and quartz vein type Au-Mo deposits can be found in Xiaoqinling and Xiong'ershan regions. Emphasis should be placed on Indosinian granite and related Mo mineralization in East Qinling area.
Key words:  Indosinian, Mo mineralization, prospecting potential, Qinling