伽玛能谱测量在汨罗梅树湾矿区花岗岩的应用及其效果  

APPLICATION AND EFFECTS OF GAMMA-RAY SPECTROMETRY IN GRANITE OF THE MEISHUWAN MINING AREA,MILUO

作　　者：彭文富 万宏 康博 盛柏伟 PENG Wen-fu;WAN Hong;KANG Bo;SHENG Bo-wei(Hunan Institute of Geological Hazard Investigation and Monitoring,Changsha 410004)

机构地区：[1]湖南省地质灾害调查监测所,湖南长沙410004

出　　处：《云南地质》2025年第1期101-105,共5页Yunnan Geology

摘　　要：以汨罗市梅树湾矿区为例,测区花岗岩放射性水平不能满足建筑主体材料I_(Ra)≤1和I_(r)≤1要求,通过伽玛能谱测量扫面、钻孔岩芯放射性测量对比勘查时实验采用的底本底多道γ能谱仪测量基本圈定出放射性异常范围。指导采矿权范围划定,避免不符合建筑主体材料的花岗岩骨料流入建筑市场。The radioactive levels of granite in Meishuwan mining area,Miluo City could not meet the requirements for building materials(I_(Ra)≤1 and I_(r)≤1).Through gamma-ray spectrometry mapping,drill core measurements,and comparative analysis with bottom background multi-channel γ energy spectrometer data,the radioactive anomaly boundaries were delineated.This study contributes toguiding the delineation of mining rights and preventing unqualified granite aggregates from entering the construction market.

关 键 词：伽马能谱测量 花岗岩 放射性 异常 梅树湾矿区 湖南汨罗 

分 类 号：P619.222[天文地球—矿床学]