| 张善明.广西大瑶山西侧综合地质异常与控矿分析[J].地质与勘探,2010,46(2): |
| 广西大瑶山西侧综合地质异常与控矿分析 |
| Comprehensive Analysis of Geological Anomalies and Mineralization Conditions inthe western Dayao Shan Mountains, Guangxi Province |
| 投稿时间：2009-11-01 修订日期：2010-03-15 |
| DOI： |
| 中文关键词: 地质异常 控矿分析 泥盆系 大瑶山 |
| 英文关键词: geological anomaly,mineralization condition,Devonian,Dayao Shan Mountains |
| 基金项目: |
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| 中文摘要: |
| [摘要]运用地质异常理论和方法,对大瑶山西侧地区沉积、构造、蚀变、土壤次生晕异常特征、有
机质与成矿的关系进行了定性和定量分析。结果表明,泥盆纪沉积异常为成矿提供了物质来源;海平面
升降产生的层序边界面为成矿提供了有利的含矿建造,并制约着大瑶山成矿带的时空结构;构造复杂度
异常控制了矿带的展布和矿床的空间分布;蚀变异常控制了矿体的空间定位和矿床后期改造特征;土壤
次生晕异常则反映了矿化的空间分带和组合特征。基于综合地质异常与控矿分析,利用GIS 平台提取
异常致矿信息,圈定成矿有利地段,为该区成矿预测及找矿勘探提供依据。 |
| 英文摘要: |
| Abstract:Applying the theory and method of geological anomaly , we analyze the anomaly characters of the sediments, structures , alteration and ge鄄
ochemical secondary halos and the relationship between the anomalies and deposits west of the Dayao Shan Mountains, Guangxi Province. The results
demonstrate that the anomalous sediments of Devonian time offered the material sources for the metallogenesis. The strata succession interfaces generated
by sea level changes offered the favorable ore-bearing formation and determined the spatial-temporal pattern of the Dayaoshan metallogenic belt. The com鄄
plexity of structures has major influence on the distributions of the metallogenic belt and mineral deposits. The alteration anomaly controlled the orebody爷
s orientations and characters of later modification. The geochemical secondary halos anomaly shows the spatial zones of mineralization and their combina鄄
tion characters. Based on comprehensive analysis on the geological anomalies and mineralization conditions, using the platform GIS to extract the informa鄄
tion of ore-generating anomalies and delineate prospective sections, this work offers scientific evidence for ore resource prediction and exploration in this
region. |
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