【摘要】 西藏双湖县达则金矿位于班公湖—怒江缝合带中段,矿体受近东西向的脆—韧性断裂构造控制,呈似层状、脉状产于中—下侏罗统木嘎刚日群混杂岩中。本文在区域地质、大比例尺构造蚀变填图成果分析、岩石地球化学综合剖面成果分析,典型矿床对比等方面对双湖县达则金矿的金矿找矿潜力做了初步分析,利用构造蚀变填图和岩石地球化学综合剖面发现了三条含金蚀变带,通过探槽揭露发现三条金矿带,品位为1.84～3.17g/t,延申超过300m。与商旭金矿相似,均受近东西断裂控制,成矿物质与木嘎岗日群关系密切,初步认为达则金矿具有良好的找矿前景,具有中型以上的资源潜力,该矿金矿的发现为班公湖—怒江缝合带中段寻找造山型金矿提供有意义的参考。更多还原

【Abstract】 The Daze Au deposit in Shuanghu, Tibet lies in the middle section of the Bangong Co-Nujiang juncture and occurs as stratoid form and vein in the mélange of the Middle-Lower Jurassic Mugagangri Group. The orebodies are controlled by brittle-ductile structural zone. 3 Au-bearing altered zones are delineated by structure-alteration mapping and petrogeochemical mapping. 3 Au ore zones with a length of more than 300 m are demonstrated by trench. The ore grade is 1.84-3.17 g/t Au. Ore material was derived from the Mugagangri Group. The studied area is of good prospecting potential.更多还原