柴北缘双口山荒漠戈壁景观区1∶5万“HS-9-4”弱小化探异常的矿化发现及意义  

Weak Geochemical Anomalies and Mineralization in the Shuangkoushan Region,Northern Margin of Qaidam

作　　者：徐永利[1,2] 许荣科[3] 郑有业[2,3] 吕登[2] 蔡鹏捷[3] 马超[2] 刘嘉[3] 王红军[2] 

机构地区：[1]甘肃省地矿局第三地质矿产勘查院,甘肃兰州730050 [2]中国地质大学资源学院,湖北武汉430074 [3]中国地质大学地质调查研究院,湖北武汉430074

出　　处：《地质与勘探》2015年第2期345-352,共8页Geology and Exploration

基　　金：柴达木周缘及邻区成矿带地质矿产调查与评价;"青海绿梁山-双口山矿产远景调查"(资[2010]矿评02-01-23)(1212011121204)资助

摘　　要：双口山荒漠、戈壁景观区位于我国柴北缘重要成矿带上。该景观区1∶5万水系沉积物测量发现"HS-9-4"综合异常弱小、零散、峰值低;元素空间套合性差,无规律性;多元素仅有1级异常分带。根据其本身自然地理景观,经"衬度异常法"与常规方法对比,发现"HS-9-4"弱小异常值得重视,对该异常开展了查证工作,最终在异常区发现了多处与金相关的矿(化)体及线索,为下一步地质工作提供了可靠依据。The Shuangkoushan gobi desert region is located in an important metallogenic belt in the northern margin of Qaidam. The 1∶ 50000 stream sediment survey reveals weak'HS- 9- 4'geochemical anomalies,which are scattered and of low amplitude,poor matching of elements and irregular spatial distribution. There is only one element having first-order geochemical anomaly zoning among many elements. According to its natural geographical landscape,through comparison between the contrast anomaly method and conventional anomaly method,we suggested that this'HS- 9- 4 'weak geochemical anomaly is worth studying. By investigation and test to this anomaly,we finally discovered some ore bodies and clues related to gold,which provide a reliable basis for further geological work.

关 键 词：柴北缘 荒漠戈壁景观区 水系沉积物测量 衬度异常 弱小异常 

分 类 号：P632[天文地球—地质矿产勘探]