Exploring Placer Gold Deposits through Integrated Geophysical and Geochemical Techniques at the Confluence of the Indus and Kabul Rivers,NW Pakistan  

作　　者：Asghar ALI Khaista REHMAN Owais TAYYAB Tahir ZAMAN Mahad JAMEEL Azeem KHAN Rafique AHMAD Muhammad IRFAN 

机构地区：[1]Department of Geology,University of Peshawar,Khyber Pakhtunkhwa 25120,Pakistan [2]National Centre of Excellence in Geology,University of Peshawar,Khyber Pakhtunkhwa 25120,Pakistan [3]Department of Geology,The Bacha Khan University,Charsadda,24420,Pakistan

出　　处：《Acta Geologica Sinica(English Edition)》2020年第5期1440-1450,共11页地质学报（英文版）

基　　金：financial support provided by the Department of Geology and the National Centre of Excellence in Geology,University of Peshawar。

摘　　要：Analysis of the anomalous magnetic mineral intensities and geochemistry for placer gold deposits are presented for those of the Attock area at the confluence of the Indus and Kabul rivers in northwestern Pakistan.Two grids covering an area of 10 x18 m2 and 8 x10 m2 were analyzed using a G-858 Cesium Vapor Magnetometer.The anomalous zones obtained were plotted on contour maps,2 D and 3 D magnetic intensity maps.Based on the magnetic anomalies,grid-1 of the study area was sampled at three different anomalous zones for geochemical analysis.These zones contain gold concentrations,ranging from 2.11 ppm to 6.109 ppm with an average of 4.01 ppm.Increase in gold concentration in the subsurface within the anomalous zones indicates that magnetometer survey followed by a geochemical analysis can potentially narrow down the gold-bearing anomalous zones.

关 键 词：geochemistry GEOPHYSICS placer gold deposits magnetometer survey anomalous zones Pakistan 

分 类 号：P618.51[天文地球—矿床学]