甘肃西成铅锌矿田黄渚关幅1∶50000矿产地质图数据库  

1∶50 000 Mineral Geological Map Database of the Huangzhuguan Map-sheet in the Xicheng Pb-Zn Orefield, Gansu

作　　者：贾祥祥 王树明 贾儒雅[2,3] 夏云 任志翔 JIA Xiangxiang;WANG Shuming;JIA Ruya;XIA Yun;REN Zhixiang(The First Geological and Mineral Exploration Institute of Gansu Provincial Geology and Mineral Bureau,Tianshui 741020,Gansu,China;Development and Research Center,China Geological Survey,Beijing 100037,China;Mineral Exploration Technical Guidance Center,Ministry of Natural Resources,Beijing 100120,China)

机构地区：[1]甘肃省地质矿产勘查开发局第一地质矿产勘查院,甘肃天水741020 [2]中国地质调查局发展研究中心,北京100037 [3]自然资源部矿产勘查技术指导中心,北京100120

出　　处：《中国地质》2020年第S02期137-148,10196-10213,共30页Geology in China

基　　金：中国地质调查局地质调查项目“整装勘查区找矿预测与技术应用示范”(编号:121201004000172201)。

摘　　要：甘肃省黄渚关幅(I47E013015)1∶50 000矿产地质图根据《矿产地质调查技术要求(1∶50 000)》(DD 2019-02)和行业的统一标准及要求,充分利用1∶50 000、1∶250 000等区域地质调查工作成果资料,采用数字填图系统进行野外地质专项填图,并应用室内与室外填编图相结合的方法编制完成。本图幅矿产地质图重点对泥盆系西汉水群的建造类型进行了重新划分,建立了泥盆纪成铅锌期3个建造单元,即含铅锌碳酸盐岩建造(D1a1a)、富铅锌碳酸盐岩建造(D1a1c)、贫铅锌千枚岩夹灰岩建造(D1a2);建立了图幅内EW向褶皱–断裂构造系统;突出表达铅锌矿含矿建造及与铅锌矿成矿密切相关的特殊岩性层,辅以岩相古地理略图和构造纲要图,创新表达了喷流沉积阶段及热液改造阶段与铅锌矿成矿有关的地质要素。本数据库包含16个地层单位、5期侵入岩、3期构造相关数据、4个同位素年龄数据、12个岩石全分析数据、30个矿点数据,数据容量约为30.6 MB。这些数据充分反映了1∶50 000矿产地质调查示范性成果,可对其他类似区域提供借鉴作用。The 1∶50 000 mineral geological map of the Huangzhuguan Map-sheet, Gansu(I47 E013015) is compiled in accordance with the Technical Requirements of Solid Mineral Geological Survey(DD 2019–02) and unified industrial standards and requirements. On the basis of existing 1∶50 000 and 1∶250 000 regional geological survey results, the work was performed through field geology-specific mapping both outdoors and indoors with the help of digital mapping systems. The Huangzhuguang mineral geological map redivides the formation types of the Devonian Xihanshui Group, and establishes three formation units of the Devonian lead and zinc-forming period, including lead-zinc-bearing carbonate rock formation(D1 a1 a),lead-zinc-rich carbonate rock formation(D1 a1 c), and lead-zinc-poor phyllite with limestone formation(D1 a2). The map also establishes the EW fold–fault structure systems within the map-sheet area, highlights the lead-zinc ore-bearing formations and the special lithologic layers closely related to the metallogenesis of lead and zinc, and innovatively presents geological features related to the metallogenesis of lead and zinc in the exhalation sedimentation period and hydrothermal reformation period supplemented by a lithofacies paleogeographic sketch map and a tectonic outline map. The database contains 16 stratigraphic units, five stages of intrusive rocks, three stages of structures, four isotopic ages, 12 pieces of whole-rock analytical data, and 30 pieces of mineral deposit data, with a data volume of 30.6 MB. The database gives a full presentation of the demonstrative results of 1∶50 000 mineral geological survey and can provide reference for other similar areas.

关 键 词：西成矿田 厂坝 黄渚关幅 1∶50000 喷流沉积 数据库 地质调查工程 甘肃 

分 类 号：P618.4[天文地球—矿床学] P628.4[天文地球—地质学]