【摘要】 豫西地区嵩县纸房拆离断层充填石英脉型钼矿床位于秦岭山脉三大支脉的外方山脉北麓;矿床地质特征及其矿化富集规律:(1)矿床的主要工业矿体产于中元古界熊耳群酸性火山熔岩—流纹岩的层间拆离断层带内充填的石英脉中;(2)矿体倾斜但平缓,倾角8°~35°,超薄脉状,厚度0.5~2.5m,平均2.14m,矿体空间展布状态与熊耳群流纹岩岩层、拆离断层和石英脉一致;(3)矿化不均匀,矿体赋存于石英脉上部内边缘时,脉体完整矿化较弱;(4)矿体赋存于石英脉下部内边缘时因脉体与拆离断层接触带岩石破碎程度高,钼矿化富集较强;(5)层间裂隙与矿化关系密切,石英脉下盘因围岩发生层间滑动幅度大,产生大量的层间裂隙,常形成条带状构造的富矿层;(6)钼矿化与拆离断层带围岩蚀变的强弱正相关,特别是钾化、硅化蚀变厚度越大,强度越高矿石越富;(7)矿石呈条带状,星点浸染状和复脉状矿石者,矿石较富;(8)矿体倾角由陡变缓、由缓变陡部位,走向转弯部位,矿化富集较强。更多还原

【Abstract】 In Zhifang,Song county,Henan province,Detachment fault with quartz-vein type molybdenum deposit is situated in the north slope of Waifang mountain of Qinling.Geologic feature and mineralization concentration law of deposit:(1)industrial orebody formed from the detachment fault with quartz-vein in Mesoproterozoic Xiong’er group.(2) orebody is flatly inclined and dip angle is 8°~35°.It’s ultra-thin in vein with 0.5~2.5mthick and average thickness is 2.14 m.Orebody interspace distribution is in accordance with rhyolitic layer and detachment fault.(3) mineralization is nonuniform.As orebody occurs in inside edge of top quartz vein,mineralization of vein material appears weak.(4) as orebody occurs in inside edge of underneath quartz vein,rocks in the contact zone of vein material and detachment fault was in a high fragmentation level.(5)crack in layer has close relationship with mineralization.Because of large slide amplitude of country rock,footwall of quartz vein appears a lot of interval gaps and forms banded rich ground.(6)there is a positive correlation between molybdenum mineralization and strength of detachment fault country rock,especially the potassium alteration and silicification.(7) ore is in a banding distribution and asterisks impregnation structure.(8) orebody with dip angle from steep to gentle appears highly concentrated mineralization.更多还原