多参数X荧光测量现场地球化学勘查金矿技术研究与应用

STUDY AND APPLICATIONS OF XRF IN SITU GEOCHEMISTRY PROSPECTING GOLD TECHNIQUE MEASURING MULTI PARAMETER

两种微机化携带式Ｘ荧光仪器已经研制成功，它们可以在现场同时测量２至６个元素，获得勘查金矿的多种参数。将Ｘ荧光测量原理与金矿地球化学理论相结合，本文建立了多参数Ｘ荧光测量现场勘查金矿技术。这种技术由携带式Ｘ荧光仪器、现场多元素测试技术、资料整理与异常评价方法构成。由于现场Ｘ荧光测量不仅捕获金的地球化学指示元素，也获取构造与蚀变信息，大大提高了找矿的成功率。在多个勘查区，如川西的“三江”、“金三角”等地，这种技术已经取得了良好的找矿效果。

Two kinds of microcomputer portable XRF analyzer have been developed, 2 to 6 elements can be measured in situ simultaneously and multi parameters for prospecting gold can be obtained.Combining the XRF analysis principle with the theory of geochemistry for prospecting gold,XRF in situ geochemical prospecting gold technique with multi parameters has been developed.The technique consists of portable XRF analyzer,measuring multi elements method,datd processing and assessment method.Because it is not noly indicated element but also structure and alteration informations in situ,the degree of accuracy for discovering gold orebody is improved greatly and perfect gold prospecting effects have been obtained in several areas, such as 'Sanjiang', 'Jinsanjiao', northwest of Sichun, China.