| 颜倩琼,杨斌,张起钻,李彩娟,何海洲.基于MAPGIS空间分析的佛子冲铅锌矿田找矿预测[J].矿产勘查,2015,6(3):291-297 |
| 基于MAPGIS空间分析的佛子冲铅锌矿田找矿预测 |
| Prospecting prediction based on MAPGIS spatial analysis in the Fozichong lead-zinc deposit area |
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| DOI： |
| 中文关键词: MAPGIS 找矿标志 找矿预测 佛子冲铅锌矿田 空间分析 |
| 英文关键词: MAPGIS, prospecting criteria prospecting prediction spatial analysis Fozichong Pb-Zn ore field |
| 基金项目:国家科技支撑计划资助项目(编号:2006BAB01B07)和973计划前期研究专项(编号:2007CB416608)联合资助。 |
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| 中文摘要: |
| 佛子冲矿田是桂东南地区已探明的大型铅锌多金属矿田,具有明显的层控性,并受有利层位、断裂构造及燕山期岩浆岩的复合制约。在研究区地、物、化、遥异常分析基础上,通过MAPGIS对佛子冲矿田约380 km2范围进行点线关系分析、线区关系分析和点区关系分析,厘定出找矿标志。并通过对点、线、区文件间进行相交分析及合并分析,结合检索操作,圈定出找矿靶位。厘定最有利成矿地段为下志留统+断裂影响带+岩体接触影响带+PbZn异常浓度≥100×10-6、Ag异常浓度≥100×10-6地段。 |
| 英文摘要: |
| The Fozichong ore field is a proven large-sized Pb-Zn poly-metallic ore field in southeastern Guangxi, which shows the of strata-bound characteristicsand is jointly controlled by favorable horizon, faulted structures, and Yanshanian magmatic rocks. On the basis of integrated analysis of geological conditions, geophysical, geochemical anomalies and remote sensing interpretation in region of interest, the spatial relationship between points and lines, points and areas, lines and areas was analyzed by MAPGIS in the scope of 380 km2 in Fozichong deposit area, and the prospecting criteria were established. Through the interactive and incorporation analysis among points, lines and areas, in combination with handling of retrieval, the prospecting targets were delineated. The most favorable mineralization area is that target with Lower Silurian strata, influence zone of fracture rock influence zone of contact between intrusion and strata, and anomaly zone of Pb-Zn and Ag more than and equal to 100 ppm. |
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