内蒙古自治区阿拉善右旗哈托哈拉金矿地质特征及找矿标志

Geological characteristics and prospecting indicators of the Hatohara gold deposit in Alxa Right Banner,Inner Mongolia Autonomous Region

阿拉善右旗哈托哈拉金矿区位于内蒙古自治区阿拉善右旗北东方向120 km处,矿区矿体主要赋存于早二叠世和晚石炭世侵入岩内,受北东向韧脆性断裂控制,沿断裂带可见长英质糜棱岩及条带状石英脉发育,其内可见较强的硅化、绢云母化、绢英岩化、绿泥石化、褐铁矿化及碳酸盐化等矿化蚀变发育。本文较详细地阐述了该区地质背景和矿区地质特征,总结了矿区找矿标志,为下一步找矿提供了借鉴。

Alxa Right Banner Hatohara Gold Mine is located 120 km northeast of Alxa Right Banner,Inner Mongolia.The orebodies in the survey area mainly exist in the Early Permian and Late Carboniferous intrusive rocks,and are controlled by the NE-trending ductile-brittle fault.The felsic mylonite and the banded quartz veins are observed along the fault zone.Strong silicification,sericitization,shale lithification,chlorite,limonite mineralization and carbonation and other mineralization alterations.In this paper,the geological background of the area and the geological features of the mining area are expounded in detail,and the prospecting indicators of the mining area are summarized,which provides a reference for the next prospecting.