ISSN 1009-6248CN 61-1149/P 双月刊

主管单位:中国地质调查局

主办单位:中国地质调查局西安地质调查中心
中国地质学会

    • 中文核心期刊
    • CSCD收录期刊
    • 中国科技核心期刊
    • Scopus收录期刊
高级检索

甘肃夏河合作金富集区资源潜力分析——以金、银、锑地球化学块体为例

李卫红, 刘建宏, 李通国, 贾志磊, 姚珊

李卫红, 刘建宏, 李通国, 等. 甘肃夏河合作金富集区资源潜力分析——以金、银、锑地球化学块体为例[J]. 西北地质, 2015, 48(2): 121-127.
引用本文: 李卫红, 刘建宏, 李通国, 等. 甘肃夏河合作金富集区资源潜力分析——以金、银、锑地球化学块体为例[J]. 西北地质, 2015, 48(2): 121-127.
LI Weihong, LIU Jianhong, LI Tongguo, et al. Analysis on Resource Potential of Xiahe-Hezuo Au Enrichment Area, Gansu: Taking Geochemical Blocks f Au, Ag and Sb as an Example[J]. Northwestern Geology, 2015, 48(2): 121-127.
Citation: LI Weihong, LIU Jianhong, LI Tongguo, et al. Analysis on Resource Potential of Xiahe-Hezuo Au Enrichment Area, Gansu: Taking Geochemical Blocks f Au, Ag and Sb as an Example[J]. Northwestern Geology, 2015, 48(2): 121-127.

甘肃夏河合作金富集区资源潜力分析——以金、银、锑地球化学块体为例

Analysis on Resource Potential of Xiahe-Hezuo Au Enrichment Area, Gansu: Taking Geochemical Blocks f Au, Ag and Sb as an Example

  • 摘要: 甘肃夏河-合作金富集区属秦岭造山带西段, 地质构造复杂, 出露地层主要有石炭系、二叠系、三叠系和古近系。燕山期、印支期中酸性岩浆侵入活动强烈, 断裂构造以走向逆断层为主, 次级断裂和层间破碎带发育。区内查明矿床点47处, 其中大型及以上规模金矿床3处, 中型3处, 小型41处, 显示了巨大的找金潜力。笔者应用"地球化学块体"理论和方法, 对金、银、锑地球化学块体进行圈定与内部结构剖分, 研究区域异常转变为局部异常、构建元素地球化学谱系树, 追索各子块体浓集成矿的轨迹。通过分析, 认为该区Au高值区面积大, 各层次块体浓集趋势明显, 形成Au地球化学省, 与Ag、Sb块体空间叠加组合, 计算出该块体500 m以浅金资源总量1 000 t,具备寻找大型-超大型金矿床的地球化学块体特征。区内成矿地质条件优越, 通过开展金资源潜力评价, 对本区的矿产资源评价、勘查工作部署具有重要指导意义。
    Abstract: Au enrichment zone in Xiahe-Hezuo of Gansu Province is located in the west section of Qinling orogenic belt, where the geological condition is complicated, with major outcropped strata including Carboniferous, Permian, Triassic and Paleogene.In Yanshanian and Indosinian, the intermediate-acid magma intrusive activity is intensive. The faults are mainly overthrust strike-slip faults, with occurrences of secondary fractures and interlayer fracture zones. 47 mineral spots were identified, among which there are 3 large-scale occurrences, 3 middle-scale and 41 small-scaledeposits, indicating great potential for prospecting. Based on the theories and method of geochemical blocks, the authors confirmed geochemical blocks of Au, Ag, Sb and anatomized its structure with GeoMDIS and geochemical data handling.Abnormity conversion from regional to local was studied, family tree of elements geochemistry was established, and the mineralization track of each sub-block was recovered. Results show that the high Au value area is large; blocks of each level concentrate significantly to form Au geochemical province, which is spatial overlaid and combined with Ag and Sb blocks. It is calculated that the total of light gold within 500 m is 1000 t, with the geochemical block characteristics of large and ultra-large gold deposit. The ore-forming geological conditions in the study area is favorable;evaluation on Au resources potential has important significance for mineral resources evaluation and exploration.
  • 杜坚. 安康北部志留系金矿地质特征及找矿前景探讨[J]. 中国矿山工程, 2014, 43(5): 39-43.
    DU Jian. Discussion on the geological characteristics and prospecting potential of Silurian gold-bearing in north Ankang[J]. China Mine Engineering, 2014, 43(5): 39-43.
    唐永忠, 杨兴科, 张宝荣, 等. 南秦岭造山带安康石梯-旬阳神河早古生代热水沉积盆地构造-沉积相与热水聚矿特征[J]. 中国地质, 2012, 39(5): 1261-1270.
    TANG Yongzhong, YANG Xingke, ZHANG Baorong, et al. Structure-sedimentary facies and hydrothermal mineralization characteristics of Shiti (in Ankang)-Shenhe(in Xunyang) Early Paleozoic hydrothermal basin in South Qinling orogenic belt[J]. Chinese Geology, 2012, 39(5): 1261-1270.
    张国伟, 张本仁, 袁学诚, 等. 秦岭造山带与大陆动力学[M]. 北京:科学出版社, 2001.
    ZHANG Guowei, ZHANG Benren, YUAN Xuecheng, et al. Qinling Orogenic Belt and Continental Dynamics[M].Beijing: Science Press, 2001.
    刘林, 吴景平, 杨译, 等. 陕西石泉-汉阴北部下志留统黑色岩系中的金矿床[J]. 地质与资源, 2011, 20(4): 304-309. LIU Lin, WU Jingpin, YANG Yi, et al.Gold deposit in the lower Silurian black rock series in northern Shiquan-Hanyin, Shaanxi province[J]. Geology and Resources, 2011, 20(4): 304-309.
    李会民. 石泉─汉阴北部金矿带地质特征[J]. 陕西地质, 1997, 15(2): 48-57.
    LI Huimin. The geologicalcharacteristic of gold deposit belt in the northern Shiqun-Hanyin, Shaanxi[J]. Geology of Shaanxi, 1997, 15(2): 48-57.
    李福让, 侯俊富, 杨弘, 等. 陕西石泉县羊坪湾金矿床地质-地球化学特征及金的富集规律[J]. 中国地质, 2009, 39(1): 174-183.
    LI Furang, HOU Junfu, YANG Hong, et al. Geological and geochemical characteristics and gold enrichment regularity of the Yangpingwan gold deposit in Shiquan, shaanxi Province[J]. Geology in China, 2009, 39(1): 174-183.
    王瑞廷, 谭兴华, 李福让, 等. 石泉县羊坪湾金矿床成矿模式及其找矿模型[J]. 西北地质, 2013, 49(2): 93-98.
    WANG Ruiting, TAN Xinghua, LI Furang, et al. Metallogenic Model and Exploration Pattern of Yangpingwan Gold Deposit, Shiquan County, Shaanxi Province, China[J]. Northwestern Geology, 2013, 49(2): 93-98.
    卢焕章, 范宏瑞, 倪培, 等. 流体包裹体[M]. 北京:科学出版社, 2004.
    LU Huanzhang, FAN Hongrui, NI Pei, et al. Flluid Inclusion[M]. Beijing: Science Press, 2004.
    隗合明. 安康北部志留系岩金矿品位指标研究论证报告[R]. 2005-2006.
    WEI Hemin.Research and feasibility studies report of Silurian gold grade index in north Ankang[R]. 2005-2006.
    吴晓贵, 徐九华, 魏浩, 等. 小秦岭东桐峪金矿床的流体包裹体研究[J]. 矿床地质, 2012, 31(2): 195-206.
    WU Xiaogui, XU Jiuhua, WEI Hao, et al.A study of fluid inclusions of Dongtongyu gold deposit in Xiaoqinling area[J]. Mineral Deposits, 2012, 31(2): 195-206.
计量
  • 文章访问数:  2691
  • HTML全文浏览量:  0
  • PDF下载量:  3266
  • 被引次数: 0
出版历程
  • 收稿日期:  2015-03-12
  • 修回日期:  2015-04-12
  • 发布日期:  2015-06-04

目录

    /

    返回文章
    返回