乔彦波　米凯麟　秦丽超

摘要：温都敖拉矿区位于内蒙古东乌珠穆沁旗西北部，该区构造活动强烈，成矿地质条件优越。蚀变以硅化、碳酸盐化和高岭土化为主，矿化类型主要包括褐铁矿化、孔雀石化和铅钒化。共发现六条矿化体，根据地质及矿化蚀变特征，总结出区内碎裂岩、次级破裂及近南北向花岗斑岩脉附近硅化较强地段是间接找矿标志。温都敖拉矿区具备找寻铜多金属矿床的成矿条件。

关键词：温都敖拉；铜多金属矿；矿化体；找矿标志

Abstract： Wenduaola Copper-Ploymatallic Mine was located in the northeast of Dongwuqi in Inner Monggolia. There were complex tectonic and good geological conditions in the mine area. Alteration mainly comprises silicification，carbonation，kaolinization； mineralization including ferritization，malachite minieralization and anglesitation. Six mineralized zone were found in the mine area. According to the geology characteristics and mineralization characteristics，we could summary that cataclasite formed by tectonic activity and silicification lots nearly north-south orientation granite porphyry vein were the indirect prospecting indicators，while ferritization，malachite minieralization and anglesitation were the most direct prospecting indicators. Wenduaola Copper-Ploymatallic Mine possess enough metallogenic conditions to explore copper-ploymatallic Mine.

Key words： Wenduaola； Copper and ploymetallic Mine； Mineralized Belt； Prospecting

引言

工作区位于内蒙古东乌旗西约80公里，距边境线约5公里，处于大兴安岭中段华力西、燕山期Fe、Zn、W、Au、Pb、Cr成矿带。区内岩浆活动频繁，断裂构造发育，矿化蚀变较强，成矿地质条件优越，具有良好的找矿前景。

1. 区域地质概况

工作区大地构造位置隶天山——兴蒙造山系，大兴安岭湖盆系，东乌旗——多宝山岛弧，总体构造线北东向。除石炭系和三叠系缺失外，区域地层从奥陶系到第四系均有出露；区内构造活动频繁。受北东向的区域构造线控制，区内岩体大体上位于东乌珠穆沁旗复背斜轴部或北翼，岩石类型以酸性侵入岩为主，中酸性和中性侵入岩少量，其中以早二叠世中性及酸性火山喷发为主，其次是中酸性火山喷发。岩性包括安山质火山碎屑岩、安山岩、流纹质火山碎屑岩、英安质火山碎屑岩及层凝灰岩等。

2. 工作区地质特征

区内地层由老至新为泥盆统安格尔音乌拉组变质粉砂岩、变质长石石英砂岩；……