甘肃省区域化探方法技术和主要成果  

REGIONAL GEOCHEMICAL METHOD AND TECHNIC AND PRIMARY RESULT IN GANSU PROVINCE

作　　者：徐家乐 冯治汉[2] 牛洪斌 李文胜[2] 

机构地区：[1]甘肃省地质矿产勘查开发局,甘肃兰州730000 [2]甘肃省地质调查院,甘肃兰州730000

出　　处：《甘肃地质学报》2002年第2期67-73,共7页Acta Geologica Gansu

摘　　要：20世纪 70年代末 ,微量元素分析技术的提高和区域化探工作方法的提出 ,为全国区域化探扫面奠定了基础。甘肃省自 1979年开始 ,到 2 0 0 1年止 ,根据不同的地球化学景观 ,采用不同的工作方法 ,完成了全省 4 0 4万km2 范围内的全部可工作区的 1∶2 0万区域化探工作 ,发现了大水等Au矿床 (田 )。甘肃省的Au高背景区域主要分布在西秦岭及祁连山西段 ,元素组合主要是Au、As、Sb、Hg、Ag、Pb、Cd、Bi、W、Mo、Cu、Zn等。通过对甘肃省区域化探 2 0余年走过的历程和取得的成果的综述与分析 ,在战略指导思想、方法技术对策、成绩成果评估和新世纪发展方向等方面进行了有益的探索和讨论。It is the basic of regional geochemistry in all country that we advanced technique of analyzing minor element and bring forward its working method in last stage of 1970s.We have accomplished 1∶200000 regional geochemistry about 404000 km 2(can work)in Gansu Province and find Dashui gold ore deposit(field)and so on depending on different subareas of geochemistry landscape and using different working method form 1979 to 2001.Au high background distribute mainly in west Qinling and west Qilian in Gansu Province and its important element combination is Au?As?Sb?Hg?Ag?Pb?Cd?Bi?W?Mo?Cu?Zn?and so on.Through summarizing and analyzing the course and result of regional geochemical exploration of Gansu Province in more 20 years,the authors searched after and discussed the guiding idea of tactic and the countermeasure of method and technique and the evaluation of result and the direction of development in the 21th century and so on.

关 键 词：区域化探方法 甘肃 地球化学景观 痕量金分析方法 找金 金矿床 

分 类 号：P632[天文地球—地质矿产勘探]