便携式X荧光仪在多金属矿区的应用  

THE APPLICATION OF PORTABLE X-RAY FLUORESCENCE INSTRUMENT TO THE POLYMETALLIC ORE DISTRICT

作　　者：马德锡[1,2] 杨进[2] 陈孝强[1] 王春生[1] 张廷彦[1] 陈瑞林[1] 

机构地区：[1]武警黄金地质研究所,河北廊坊065000 [2]中国地质大学地球物理与信息技术学院,北京100083

出　　处：《物探与化探》2013年第1期63-66,共4页Geophysical and Geochemical Exploration

摘　　要：内蒙古东乌旗阿吉勒—乌兰—博根敖包一带地表发育大面积铁锰矿化,通过手提式X荧光仪在该区的土壤及岩石露头处进行原位测量,发现多种元素异常浓集中心与已知矿脉对应,矿脉以外的异常通过槽探工程圈定了新的矿体,钻孔中有多层脉状、网脉状矿体。如果采用合理的方法技术对基体效应进行校正,并尽可能克服湿度效应、几何效应的影响,手提式X射线荧光仪测量结果就能够真实反映矿区的具体情况,对野外快速圈定找矿远景区,追索查证异常点(带)和在成矿元素含量大于工业品位的异常地段直接圈定矿体具有很大的实用价值。Large-area iron-manganese mineralization is developed in Ajile-Ulan-Bogen Obo area of Dong Ujimqin Banner in Inner Mongolia.The in-situ measurement of soil and rock outcrops in this area by means of X-ray fluorescence instrument revealed the consistency between the anomaly concentration centers of quite a few elements and the known ore veins,the trenching performed over anomalies outside the ore veins led to the delineation of new ore bodies,and the drill hole intersected several layers of veined and stockwork ore bodies.If rational methods and techniques are adopted to correct the matrix effect,and the influence of the humidity effect and the geometric effect can be overcome as much as possible,the measurement result of the portable X-ray fluorescence instrument can reflect the reality of the ore district,which is hence of great practical significance for rapid delineation of ore prospective areas,tracing and verification of anomaly points（zones） and direct delineation of ore bodies in anomalous areas where values of ore-forming elements are higher than their ore grades.

关 键 词：IED2000P手提式X荧光仪 原位测量 元素异常 阿吉勒—乌兰—博根敖包 

分 类 号：P632[天文地球—地质矿产勘探]