岩(矿)石电阻率值对成矿构造环境的判别——以夏甸金矿为例  

Determination of metallotectonic environment by rock or ore-resistivity value——with Xiadian gold deposit as example

作　　者：李静[1] 孙忠实[2] 翁爱华[1] 付利敏[1] 孙黎[2] 范思琦[2] 

机构地区：[1]吉林大学地球探测与科学技术学院 [2]吉林大学地球科学院

出　　处：《黄金》2008年第8期15-19,共5页Gold

基　　金：吉林大学2007年度"大学生创新性实验计划"一级项目(编号:2007B62088);项目名称:不同边界条件岩(矿)石电阻率值对成矿构造环境的判别

摘　　要：以山东夏甸金矿为例,基于大量岩(矿)石电阻率数据的存在以及岩(矿)石电阻率值与温度、压力的变化关系,通过电阻率值的大、小,从等温等压对比、岩石(或矿物)对比和数值计算3个方面反推温、压条件值。尽管该温、压条件值的判定并不是很精确,但数值变化的连续性,有规律的区间性、等距性和可对比性等,对成矿边界条件给予更系统、更深入地分析研究,获取有关成矿构造环境的更多信息。主要表现在电阻率值分别对组成成矿构造环境物质成分、温压条件连续变化,拉张和挤压,力学性质转换,主要物理能量转换以及空间定位等方面的判别,不仅加大成矿构造环境研究的深度,而且为新成矿预测标志的建立将增加新的内容。With Xiadian gold deposit in Shandong as an example, the back-stepping of temperature and pressure conditions value was carried out in three aspects of isothermal-isopressing contrast, rock or ore comparison and numerical analysis, based on a large number of rock or ore-resistivity data, as well as the relationship between the resistivity value and the temperature or pressure changes. Although the determination of the temperature and pressure conditions is not very accurate, but with the continuously numerical changes, the regular interval, equidistanee and eorrelatability, the boundary conditions for mineralization could be researched more systematically and deeply. As a result, more information about metalloteetonie environment can be obtained. The resistivity values were mainly used to determine the metalloteetonie environment material eomposition, eontinuous ehange of temperature and pressure eonditions, tension and compression, mechanical properties conversion, main energy conversion and space orientation. It not only deepened the metalloteetonie environment study, but also inereased new eontents for metallogenie marks.

关 键 词：岩(矿)石电阻率值 成矿构造环境 夏甸金矿 判别 

分 类 号：P624[天文地球—地质矿产勘探] P618.51[天文地球—地质学]