摘要
广西大厂矿田为一大型-超大型锡多金属矿田。碳沥青、包裹体、矿石成分分析等方面的研究结果表明,区内成矿过程中存在大量有机质的参与,烃类气体是其重要的伴生组分。通过对土壤中的烃类组分分析发现,其背景含量与异常差异很明显,显示区内存在明显的成矿热液活动,深部有较大的找矿潜力。在总结烃类组分和微量元素As、Sb在更庄地区土壤中的异常展布特征的基础上,结合异常分布区的地质和构造条件,圈出了3个找矿有利区。
The Dachang tin deposit is a superlarge tin polymetallic ore deposit. The research results of tar, components of inclusions and ores show that there were many organic matters which took part in the process of mineralization, with hydrocarbon being the most important associated components. An analysis of the hydrocarbon content in soil reveals that the background and anomaly of hy- drocarbon change obviously, and the authors infer that as there probably existed large amounts of ore-forming liquid, the potential of prospecting for ore deposits in the depth is fairly great. According to the distribution characteristics of hydrocarbon and As, Sb anoma- lies in combination with geological and structural features, three valuable ore-prospecting target areas were delineated in the region.
出处
《地质通报》
CAS
CSCD
北大核心
2012年第1期120-125,共6页
Geological Bulletin of China
基金
国家自然科学基金项目<广西大厂锡矿成矿中有机质的作用和演化>(批准号:41073039)
广西华锡集团有限责任公司项目<广西大厂矿田长坡矿床深部及外围接替资源找矿预测>(编号:桂华行[2009]39)
广西学会委员会
教育厅研究生教育创新计划项目<大厂铜坑锡矿成矿地球化学模型及找矿预测>(编号:2010105960709M20)
关键词
烃气测量
找矿评价
大厂矿田
hydrocarbon measurement exploration and evaluation Dachang tin orefield