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中国地质学会

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西秦岭甘肃段特大型金矿床的地质地球化学特征及其成岩成矿年龄

陈国忠, 龚全胜, 梁志录, 张愿宁, 麻红顺

陈国忠, 龚全胜, 梁志录, 等. 西秦岭甘肃段特大型金矿床的地质地球化学特征及其成岩成矿年龄[J]. 西北地质, 2017, 50(4): 91-104.
引用本文: 陈国忠, 龚全胜, 梁志录, 等. 西秦岭甘肃段特大型金矿床的地质地球化学特征及其成岩成矿年龄[J]. 西北地质, 2017, 50(4): 91-104.
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CHEN Guozhong, GONG Quansheng, LIANG Zhilu, et al. Geological, Geochemical Characteristics and Diagenetic Age of the Super-large Gold Deposits in Western Qinling, Gansu Province[J]. Northwestern Geology, 2017, 50(4): 91-104.
Citation: CHEN Guozhong, GONG Quansheng, LIANG Zhilu, et al. Geological, Geochemical Characteristics and Diagenetic Age of the Super-large Gold Deposits in Western Qinling, Gansu Province[J]. Northwestern Geology, 2017, 50(4): 91-104.
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西秦岭甘肃段特大型金矿床的地质地球化学特征及其成岩成矿年龄

  • 甘肃省地矿局第三地质矿产勘查院, 甘肃 兰州 730050

基金项目: 

全国危机矿山接替资源勘查项目“甘肃省早子沟金矿接替资源勘查项目”（201201024061）资助

详细信息
    作者简介:

    陈国忠(1982-),男,大学本科学历,工程师,矿床学专业。E-mail:cgz1982001@163.com

  • 中图分类号: P597;P618.51

Geological, Geochemical Characteristics and Diagenetic Age of the Super-large Gold Deposits in Western Qinling, Gansu Province

  • No.3 Geology and Mineral Exploration Team, Gansu Provincial Bureau of Geology and Mineral Resources Exploration and Development, Lanzhou 730050, Gansu, China

摘要

    摘要
  • 摘要: 西秦岭是中国具有大型、特大型金矿成矿条件的成矿带，通过对西秦岭甘肃段4个特大型金矿之间及其卡林型金矿、造山型金矿的地质、地球化学特征对比研究表明：这4个特大型金矿均具有多期多次成矿的特点，且具有由卡林型金矿向造山型金矿过渡的特征，成矿作用发生在碰撞造山阶段的挤压向伸展转换期，代表了一种新的成矿类型，建议定义为"卡林-造山复合型"，特大型金矿成矿时间为127~216 Ma，成矿背景及成矿时间具有偏在性。
    Abstract: The West Qinling metallogenic belt has good condition for forming large and super-large gold deposits in China. In this paper, the geological and geochemical characteristics of four super-large deposits in West Qinling, Gansu Province have been analyzed, and they are compared with the ones of Karlin-type and orogenic gold deposits. The results show that these four super-large gold deposits have many characteristics of multi-stage mineralization, and they have the transition characteristics of changing from Karlin-type gold deposit to orogenic gold deposit.The gold mineralization was occurred in the collision orogenic stage, which has been defined as "Carlin-orogenic compound type".The metallogenic age of these super-large gold deposits is 127~216 Ma, the metallogenic background and time show the metallogenic preferentiality.
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  • 收稿日期:  2017-08-07
  • 修回日期:  2017-09-17
  • 网络出版日期:  2022-07-28
  • 发布日期:  2017-12-04

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