国土资源导刊
國土資源導刊
국토자원도간
LAND & RESOURCES HERALD
2015年
1期
20-23
,共4页
金矿%地质特征%找矿标志%成矿预测
金礦%地質特徵%找礦標誌%成礦預測
금광%지질특정%조광표지%성광예측
gold deposit%geological characteristics%prospecting mark%metallogenic prediction
该区在大地构造上位于Ⅱ级构造单元江南台隆中雪峰弧形构造带由NE向构造转为NEE向构造而形成的弧形转折部位。金矿床赋存于元古界板溪群(Ptbn)和元古界冷家溪群(Ptln)地层中,严格受元古界浅海相沉积的一套浅变质(碎屑)岩及断裂构造、热液蚀变控制。通过成矿条件综合分析,该区金成矿地质条件优越,具有较好的找矿潜力。
該區在大地構造上位于Ⅱ級構造單元江南檯隆中雪峰弧形構造帶由NE嚮構造轉為NEE嚮構造而形成的弧形轉摺部位。金礦床賦存于元古界闆溪群(Ptbn)和元古界冷傢溪群(Ptln)地層中,嚴格受元古界淺海相沉積的一套淺變質(碎屑)巖及斷裂構造、熱液蝕變控製。通過成礦條件綜閤分析,該區金成礦地質條件優越,具有較好的找礦潛力。
해구재대지구조상위우Ⅱ급구조단원강남태륭중설봉호형구조대유NE향구조전위NEE향구조이형성적호형전절부위。금광상부존우원고계판계군(Ptbn)화원고계랭가계군(Ptln)지층중,엄격수원고계천해상침적적일투천변질(쇄설)암급단렬구조、열액식변공제。통과성광조건종합분석,해구금성광지질조건우월,구유교호적조광잠력。
The area is located on the tectonic curved transition parts Ⅱ -class tectonic units the Jiangnan stacked platform uplift in Xuefeng arcuate tectonic belt into a NEE by NE trending tectonic formation of the constructor. The gold deposit occurrence in the Proterozoic Banxi Group (Ptbn) and Proterozoic Lengjiaxi (Ptln), strictly controlled by Fracture structure,hydrothermal alteration and the set of low-grade metamorphic (clastic) rocks in shallow marine deposition of the Proterozoic. Through comprehensive analysis of metallogenic conditions, that the area of gold metallogenic geological condition is superior, and has better prospecting potential.