陕西省宁强县潘家坝地区金矿成矿地质条件分析OA
Analysis of the geological conditions for gold mineralization in the Panjiaba area of Ningqiang County,Shaanxi Province
潘家坝地区位于可可西里-巴颜喀拉中生代造山带-摩天岭地块-碧口构造楔与龙门山-阳平关早古生代裂谷的交接部位,属摩天岭加里东褶皱带文县—勉县褶皱束西段,区内褶皱、断裂及节理十分发育,且工作区地层主要为碧口岩群二亚群中基性火山岩组(Pt2-3bk2),该地层中Au等元素丰度高于地壳的1.3～3.2倍,同时岩体侵入活动,为成矿流体形成、迁移提供热源,故有良好的成矿条件.
The Panjiaba area is located at the junction of the Kekexili Bayankala Mesozoic Orogenic Belt,the Motianling Block,the Bikou Structural Wedge,and the Longmen Mountain Yangpingguan Early Paleozoic Rift Valley.It belongs to the western section of the Motianling Caledonian Fold Belt's Wenxian Mianxian Fold Bundle,with well-developed folds,fractures,and joints.The working area is mainly composed of the basic volcanic rock group(Pt2-3bk2)in the second subgroup of the Bikou Rock Group.The abundance of Au and other elements in this stratum is 1.3-3.2 times higher than that in the crust.At the same time,the intrusion of the rock mass provides a heat source for the formation and migration of ore-forming fluids,thus providing favorable ore-forming conditions.
党超冉
中国冶金地质总局西北局六队,陕西 汉中 723000
地质学
潘家坝地区成矿条件
Panjiaba areaMetallogenic conditions
《世界有色金属》 2024 (5)
100-102,3
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