赣南宁都地区1:50000青塘幅矿产地质图数据集  

The 1:50000 Mineral Geological Map Dataset of the Qingtang Map-sheet, Ningdu, South Jiangxi

作　　者：刘翠辉 于长琦 贺根文 李伟[1] 刘孝斌 Cuihui LIU;Changqi YU;Genwen HE;Wei LI;Xiaobin LIU(Gannan Geological Party, JBED GMR, Ganzhou 341000, China)

机构地区：[1]江西省地质矿产勘查开发局赣南地质调查大队,江西赣州341000

出　　处：《中国地质》2019年第A01期75-83,10100-10111,共21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”子项目(121201004000150017-14)资助.

摘　　要：青塘幅位于江西南部于都银坑-宁都青塘整装勘查区北部,于山成矿亚带的北部。本次工作采用了岩性-构造-蚀变矿化专项填图、遥感、物探、化探、钻探等多种方法进行数据采集,完成了矿产地质路线调查长度533.68 km,采集水系沉积物样品1 729件,完成1:50 000地面高精度磁法测量458 km^2,遥感数据解译面积458 km^2,钻探施工422 m,化学分析样119件。数据集重点对燕山期早阶段成矿岩浆岩、含矿建造、控岩控矿构造及矿化蚀变标志等进行了调查划分,明确黑云母花岗岩为矽卡岩型硫铁钨多金属矿的成矿地质体,主要成矿结构面为梓山组上段的硅钙异性界面,蚀变以矽卡岩化、大理石化等为主;编制了青塘幅建造构造图,创建了区内矿产数据库,汇编了主要建造构造、断裂、地质界线、岩浆岩等属性特征;完善了狮吼山式矽卡岩型硫铁钨多金属矿床找矿预测模型,突出了区内矿产与建造构造之间的成因联系。The Qingtang map-sheet is located to the north of the Yudu Yingkeng-Ningdu Qingtang integrated survey area, south Jiangxi, and in the north of the Yushan metallogenic sub-zone. To develop this dataset, data were acquired comprehensively by using multiple methods such as mapping specific to lithology-structures-altered mineralization, remote sensing, geophysical/geochemical and drilling exploration. A route of 533.68 km was surveyed for mineral geology, with 1 729 stream sediment samples and 119 chemical analytical samples collected, 458 km^2 of land measured with the 1:50 000 ground high-precision magnetic method and interpreted based on remote-sensing data, as well as 422m of depth drilled. In the dataset, emphasis is placed on survey and division of early-Yanshanian metallogenic magmatite, ore-bearing formations, rock-controlled and ore-controlled structures, and mineralized alteration marks etc. It is clear that biotite granite is a metallogenic geologic body of skarn-type S-Fe-W multi-metal ores, the main metallogenic structural plane is the Si-Ca heterologous interface in the upper part of the Zishan Formation, and alteration is mainly through skarnization, marbleization etc. The project team has plotted the Qingtang Map-sheet formation and structural map, created the mineral database of the area, and compiled properties of the main formation structures, fractures, geological boundaries and magmatite etc. This has improved the prospecting prediction model for Shihoushan-styled, S-Fe-W multi-metal deposits and highlighted the causal relationship between deposits and tectonic formations in the area.

关 键 词：于都整装勘查区 青塘幅 矿产地质图数据集 矽卡岩硫铁钨矿 1:50 000 

分 类 号：P628[天文地球—地质矿产勘探]