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出 处:《物探化探计算技术》2015年第5期662-665,共4页Computing Techniques For Geophysical and Geochemical Exploration
摘 要:在符合地质规律的条件下,将样品的实际坐标进行移动或变换,可以直观和快速地生成地球化学的相关图件:地表的地化剖面与深部的轴向地化剖面。在金矿床的一条勘探线中,通过移动采样位置,满足对网格数据的要求,实现等值线平面图的绘制,判别出6种单元素的空间分布位置由上至下排列分别是:As-Ag-Pb-Zn-Au-Cu。Ag、As相对矿体的位置有向上延伸的趋势,可以作为远矿指示元素;Pb、Zn、Cu三种元素异常的分布限于矿体的边部或附近,可以作为近矿指示元素;As在矿体底部呈现快速富集现象,可作为尾矿指示元素;Au则是成矿的直接指示元素。通过研究元素间的分布特征、分布规律,可以更好地了解了矿体赋存状态,为地质找矿工作提供了线索与依据。Under the law of geologic condition,the sample of the actual coordinates to move or transform can be intuitive and fast generation geochemical maps.It can be divided into two cases,one is the surface geochemical profile,the other is a deep axial geochemical profile.In one prospecting line of the gold deposit,by moving the sampling position,meet the requirements of the grid data,realize the contour plan drawing,identify 6type of element distributions of the spatial position.From top to bottom respectively,it is As-Ag-Pb-Zn-Au-Cu.The abnormal of Ag and As have a upward trend to the ore body,mean to be as far ore indicator elements;Pb,Zn and Cu abnormal distribution are limited to the edge of the ore bodies or nearby,which can act as the nearly ore indicator elements;As abnormal is in the bottom of the ore body and have a fast enrichment phenomenon,which can be used as the indicator elements of tailings;Au abnormal is the ore-forming indicator elements directly.Through the study of distribution characteristics between elements,can be better understand ore body occurrence state,provide clues and basis for geological prospecting work.
分 类 号:P632[天文地球—地质矿产勘探]
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