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 Azeem KHAN Khaista REHMAN Mahad JAMEEL Muhammad IRFAN Owais TAYYAB Rafique AHMAD Tahir ZAMAN
• 来源期刊: 地质学报（英文版）
• 年，卷（期）: 2020,（5）
• 所属期刊栏目: ORIGINAL ARTICLES
• 页码范围: 1440-1450
• 页数: 11页
• 语种: 英文

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 10×18 m2 and 8×10 m2 were analyzed using a G-858 Cesium Vapor Magnetometer.The anomalous zones obtained were plotted on contour maps,2D and 3D 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.