地质找矿过程中实物地质资料的再利用:以贵州省威宁-水城铁多金属为例

The reuse of geological material in geological prospecting process:taking Guizhou province Weining-Shuicheng iron polymetallic as an example

本文简述了贵州威宁-水城地区铁多金属矿的区域地质背景,并对该区自1958年以来的找矿历程及找矿过程中实物地质资料再利用进行了概述。其中实物地质资料再利用起到重要作用的两次找矿突破成果是在1959年和2008年。特别是2008年,通过对铜矿普查项目保存的钻孔岩芯进行了系统的补采化学样和对保存的附样等实物资料重新测试分析,同时在对该区区域地质背景、矿床地质特征及富集规律等进行综合研究的基础上,又发现了该区产出于峨眉山玄武岩顶部的找矿标志层和赋矿有利地段,经过测试分析后发现除了铁元素外,尚含有铜、钛、稀土、铌等丰富的有用元素,这些元素均达到工业品位要求或综合利用要求。至2013年取得了重大找矿突破,提交了铁矿总资源量23 425.69万t,探明总资源储量2 260.72万t。此实例说明,对以往实物地质资料的重复利用与综合研究,在实现地质找矿工作中,常常起到关键作用,是实现找矿突破的有效途径。

This paper briefly describes the regional geological background of iron polymetallic ore deposits in Guizhou province Weining-Shuicheng,and summarizes the prospecting process and the reuse of geological material during the prospecting process since 1958.The geological materials reuse played an important role in breakthrough exploration in 1959 and 2008,especially in 2008,through the analysis of geological materials which retained from a copper mine survey project,and based on the comprehensive study of the regional geological background,geological characteristics and enrichment regularities and so on,found that in the producing area from the top of the Mountain Emei basalt ore layer and ore favorable area,the samples analysis found that contain the iron element,also have useful rich elements,such as copper,titanium,niobium,rare earth,these elements have reached the requirements of industrial grade or comprehensive utilization.In 2013,making a major breakthrough in prospecting,to submit a total of 234 million 256 thousand and 900 tons of iron ore resources,to prove total reserves of 22 million 607 thousand and 200 tons.This example shows that the repeated utilization and comprehensive research of previousgeological material often play a key role in the geological prospecting,and it is an effective way to realize the breakthrough of prospecting.