The application of the tectonic geochemical thinking in anomaly desert area in Shuangkoushan on the northern margin of Qaidam Basin and its geological significance
Most of the hydrothermal deposits are controlled by fracture tectonics;however,the application of the method of delineating geochemical anomalies based on metallogenic tectonics is still in the exploratory stage.The Shuangkoushan is situated in the most significant Au-Ag-Pb-Zn metallogenic belt on the northern margin of the Qaidam Basin in Qinghai.However,the area is also characterised by extensive deserts and Gobi landscapes,which have been affected by wind-induced sand formation and other factors.This results in the weakening or concealment of many geological anomalies,and causes a certain degree of interference in geological prospecting.Given the unique geomorphological features and metallogenic background of the Shuangkoushan area,the 1∶10,000 soil geochemical survey data of the HS-9-5 anomaly in this area was processed using the metallogenic tectonic geochemical method.This approach has led to the identification of many favorable sections and the discovery of a number of gold mineralization bodies.This paper demonstrates the efficacy of the geochemical anomaly delineation method based on tectonics in deposits exhibiting strong tectonic activity or tectonic control.Consequently,this geochemical exploration method merits further promotion.The process and outcome of this exploration method are briefly described in this paper,which may serve as a reference for future mineral exploration work in the study area and similar landscapes.
northern margin of Qaidam BasinShuangkoushandesert and gobigold deposittectonic geochemistry
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