金矿体趋势预测方法及其在河南上宫金成矿带的应用效果  

Forcasting method for gold orebody trending and its application on prospecting in Shanggong gold metallogenic belt,Henan

作　　者：汪江河[1,2] 孙卫志[1,2] 刘耀文[1,2] 冯绍平[1,2] 赵太平[3] 姚军明[3] 詹晓军 

机构地区：[1]河南省地质矿产勘查开发局第一地质矿产调查院,洛阳471000 [2]河南省金银多金属成矿系列与深部预测重点实验室,洛阳471000 [3]中国科学院广州地球化学研究所,广州510640

出　　处：《矿产勘查》2015年第6期752-758,共7页Mineral Exploration

基　　金：全国整装勘查区找矿预测与技术应用示范项目(编号:12120114035001);河南省地勘基金项目(编号:[2011]80-30;2011-622-7)资助

摘　　要：为在整装勘查过程中开展大比例尺矿体定位、定量预测,以有效指导深部找矿工程的实施,文章对金矿体趋势预测方法及其应用进行了研究。金矿体趋势预测方法的理论基础是惯性理论,是现代成矿预测理论趋势外推法及地质评价的综合应用。根据矿体特征、成矿物化条件、控矿因素等数据及其延展变化趋势,基于GIS的空间分析功能,在矿体垂直纵投影图上输出厚度品位的权值等值线,以客观反映矿体的空间延展趋势,进行矿体趋势预测。该方法具有简便、直观、易确定靶位的特点,方便验证工程的布设、数据的动态更新、勘查工程的优化调整。经深部找矿项目验证,表明它是实现科研与找矿紧密结合的有效方法。In order to carry out large scale orebody positioning,quantitative forcasting and effectively guide deep mineral prosepecting during the assembled exploration, the paper studied the forcasting method for gold orebody trend and its application. The basic theory of gold ore body trend forecasting is inertial theory which requires a combination of trend extrapolation and geologic evaluation included in contemporary metallogenic prediction theory. Based on spatial analysis function of GIS,weight value isopleth of thickness and grade can be output in vertical projection maps,which reflect the space extending trend of ore body and promote proceeding of ore body trend forecast by data extracted from ore body characteristics,physiochemical conditions of ore forming,and ore-controlling factors. Ore body trend forecast method not only can facilitate the design of engineering ,dynamic update of data,and optimization adjustment of exploration engineering,and also can be used easily,simply,intuitively to determine target. Moreover,according to the verification of deep prospecting,this method characterized by practical significance and economic value,is suggested to be a good example for the close integration of scientific research and prospecting.

关 键 词：金矿体 矿体趋势预测 预测方法 上宫金成矿带 豫西 

分 类 号：P618.51[天文地球—矿床学]