矿产与地质
礦產與地質
광산여지질
MINERAL RESOURCES AND GEOLOGY
2015年
4期
458-461
,共4页
老挝金矿%矿床地质特征%成矿作用
老撾金礦%礦床地質特徵%成礦作用
로과금광%광상지질특정%성광작용
Laos golddeposit%geological characteristic of deposit%mineralization
帕奔金矿处于冈瓦纳大陆与劳亚大陆的交接部位,北西部分与我国云南“三江”造山带相连。帕奔地区金矿主要赋存在二叠系灰岩中,及与之相邻的接触带上。成矿过程经过了韧脆性剪切变形阶段、早期成矿阶段、主成矿阶段、晚期阶段和后期构造活动破矿阶段等五个成矿阶段。矿床属于岩浆岩构造-热液型金矿床。
帕奔金礦處于岡瓦納大陸與勞亞大陸的交接部位,北西部分與我國雲南“三江”造山帶相連。帕奔地區金礦主要賦存在二疊繫灰巖中,及與之相鄰的接觸帶上。成礦過程經過瞭韌脆性剪切變形階段、早期成礦階段、主成礦階段、晚期階段和後期構造活動破礦階段等五箇成礦階段。礦床屬于巖漿巖構造-熱液型金礦床。
파분금광처우강와납대륙여로아대륙적교접부위,북서부분여아국운남“삼강”조산대상련。파분지구금광주요부존재이첩계회암중,급여지상린적접촉대상。성광과정경과료인취성전절변형계단、조기성광계단、주성광계단、만기계단화후기구조활동파광계단등오개성광계단。광상속우암장암구조-열액형금광상。
Pahbon Au deposit is located at the intersection part between Gondwana land and Laurasia land, and its northwest part is connected to Sanjiang orogenic belt in Yunnan of China.Gold deposits in Pahbon ar-ea mainly are occurred in limestone of Permian system and the contact zone nearby.The process of minerali-zation consisted of five stages,namely ductile (brittle)shear deformation stage,early mineralization stage, primary mineralization stage,late mineralization stage and destroying ore of post-tectonic active stage.The deposit is a magmatic rock structure-hydrothermal gold deposit.