地质找矿、评价、勘探到矿山开采的各个阶段,都要进行储量估算.大桥金矿Ⅰ-1矿体具有层状、倾角缓、厚度大等特征.结合多年地质找矿成果,采用水平平行断面法,对大桥金矿Ⅰ-1矿体划分了98个小块段矿体,并对其地质储量进行了估算,获得大桥金矿Ⅰ-1矿体工业矿体与低品位矿体总矿石量202.69万t,Au总金属量4 013 kg,Au平均品位1.98×10-6 .查明了大桥金矿Ⅰ-1矿体部分资源/储量,为下一步大桥金矿Ⅰ-1矿体开发利用提供了资源保障.
Geological reserves estimation is necessary in each mining stage including geological prospecting,evaluation,exploration and exploitation.Orebody Ⅰ-1 of Daqiao Gold Deposit is characterized by stratiform structure,gently dip angle and great thickness.Based on many years' geological prospecting results,horizontal parallel section method is used to divide the Orebody Ⅰ-1 of Daqiao Gold Deposit into 98 secondary segments whose geological reserves are estimated.The total reserve including industrial orebodies and low-grade orebody of Orebody Ⅰ-1 is estimated to be 2 026 900 t,where Au metal reserve is 4 013 kg with an average grade of 1.98×10-6.The paper finds out the local geological resource/reserves of Orebody Ⅰ-1,and ensures sufficient resources necessary for further exploitation and utilization of Orebody Ⅰ-1 of Daqiao Gold Deposit.
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