| 浸泡与否对岩矿石密度测定的影响 |
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| 引用本文： | 张百帆,肖锋,李以科,柯昌辉. 浸泡与否对岩矿石密度测定的影响[J]. 物探与化探, 2021, 0(1): 173-177 |
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| 作者姓名： | 张百帆 肖锋 李以科 柯昌辉 |
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| 作者单位： | 吉林大学地球探测科学与技术学院;中国地质科学院矿产资源研究所;自然资源部成矿作用与资源评价重点实验室 |
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| 基金项目： | 国家自然基金项目“异常富集重稀土碳酸岩成因及其对稀土元素超常分异-富集控制机理研究”(42072114);中央级公益性科研院所基本科研业务专项资金项目“复杂地形、强干扰地区无人机航磁勘查技术研究——以白云鄂博矿区为例”(KK1916);科技成果转化项目“包钢白云鄂博主东矿深深部矿体相关性探测”(HE1922)、“白云鄂博矿集区成矿作用与深部找矿预测研究”(HE1918)。 |
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| 摘 要： | 岩石密度测定是获取准确密度值的重要手段,同时密度也是对重力测量结果进行地形校正和中间层校正不可缺少的参数.密度测定精度越高,利用其进行地质解译的精度也越高,但不同版本的测定规范对岩石密度测定前是否需要浸泡处理存在分歧.本文以白云鄂博矿区12种岩(矿)石标本为例,对比浸泡前后的密度变化,得出除云母型铁矿石外,浸泡后的岩石...
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| 关 键 词： | 密度 密度测定 浸泡 物性分析 |
The effect of soaking or not on the density determination of rock and ore |
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| ZHANG Bai-Fan,XIAO Feng,LI Yi-Ke,KE Chang-Hui. The effect of soaking or not on the density determination of rock and ore[J]. Geophysical and Geochemical Exploration, 2021, 0(1): 173-177 |
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| Authors: | ZHANG Bai-Fan XIAO Feng LI Yi-Ke KE Chang-Hui |
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| Affiliation: | (College of Geo-Exploration Science and Technology,Jilin University,Changchun 130026,China;Institute of Mineral Resources,Chinese Academy of Geological Sciences,Beijing 100037,China;MNR Key Laboratory of Metallogeny and Mineral Assessment,Beijing 100037,China) |
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| Abstract: | Rock density determination is an important method to obtain accurate density values,and it is also an indispensable parameter for topographic correction and middle layer correction of gravity measurement results.The higher the accuracy of density measurement,the higher the accuracy of geological interpretation.However,there are different opinions on whether soaking treatment is needed before the determination of rock density in different versions of measurement specification.In this paper,we taking 12 kinds of rock(ore)specimens in Bayan Obo mining area as an example,comparing the density changes before and after soaking.It is concluded that the density of rock increases in varying degrees after soaking,except mica-type iron ore.For rocks(ores)with developed pores or fissures,the percentage of density difference after soaking is greater than 0.5%,and the density difference percentage will be greater than 0.5%.However,for the rock(ore)with dense structure,the influence of soaking on the density measurement is less than 2 times of the measurement error,which is negligible. |
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| Keywords: | density density determination soaking physical property analysis |
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