柬埔寨王国蒙多基里省O Phlay地区金矿成矿特征  

Metallogenic Characteristics of Gold Deposits in Ophlay Area, Mondokiri Province, Cambodia

作　　者：张中欣 于明光 熊玉强 陈刚 ZHANGZhongxin;YU Mingguang;XIONGYuqiang;CHENGang(Shandong Geological Prospecting Institute of China Chemical Geology and Mine Bureau,Jinan 250013,China)

机构地区：[1]中化地质矿山总局山东地质勘查院

出　　处：《矿业工程》2019年第3期9-11,共3页Mining Engineering

摘　　要：OPhlay研究区位于东部印支断块区(Ⅰ33)暹粒-上丁中新生代盆地(Ⅰ33G1)与格罗奇-上川龙玄武岩高原(Ⅰ33G4)交接部位.金矿化主要发育在花岗岩(或花岗闪长岩)与围岩的内外接触带,与石英脉、硅化、黄铁矿化等密切相关.通过对OPhlay研究区岩石碎屑、水系沉积物、河道以及当地的矿业公司排出物中挑选矿体样品研究,认为区域性的大叻-边和断裂带(编号F9)及其次生派生断裂北东向断裂控制了研究区大部分的金矿分布.The OPhlay study area is located at the junction of Siem Reap-upper Neoproterozoic basin (Ⅰ3^3-1) and Grogiupper Longchuan basalt plateau (Ⅰ3^3-4) in the eastern Indosinian fault block area (Ⅰ3^3).Gold mineralization is mainly developed in the contact zone between granite (or granodiorite ) and surrounding rock, which is closely related to Quartz vein, silicification and pyrite mineralization.Based on the study of ore body samples selected from rock debris, water system sediment, river and local mining company effluent in O Phlay study area, it is concluded that the regional Dahl-edge and fault zone ( F9 ) and its secondary derived NE faults control most of the gold ore distribution in the study area.

关 键 词：柬埔寨 OPhlay研究区 北东向断裂 金矿 

分 类 号：P61[天文地球—矿床学]