| 余飞燕,朱思才,秦秀峰,甘凤伟.埃塞俄比亚北部地区特瑞VMS型铜锌矿床三维模拟及资源量估算[J].矿产勘查,2011,2(2):181-188 |
| 埃塞俄比亚北部地区特瑞VMS型铜锌矿床三维模拟及资源量估算 |
| Three dimensional modeling of Terer VMS-type Cu-Zn-Au-Ag orebodies and resources estimation, Northern Tigray Region, Ethiopia |
| 投稿时间：2010-12-06 |
| DOI： |
| 中文关键词: 埃塞 特瑞VMS型铜多金属矿 矿体三维模拟 资源量估算 |
| 英文关键词: Terer VMS-type Cu-Zn-Au-Ag orebody 3D modeling estimation inverse distance ordinary Kriging Ethiopia |
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| 摘要点击次数: 1934 |
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| 中文摘要: |
| 特瑞VMS型铜-锌-金-银矿床是中色金地资源科技有限公司在埃塞俄比亚所发现和评价的第一个有色金属矿床。文章根据地表槽探、深部钻探工程资料,应用Micromine11.0软件对特瑞铜多金属矿体进行了三维模拟和资源量估算。按照不同矿段矿体分布特征,在阿迪依克莱中矿段圈出了氧化带铁帽型金矿体和原生硫化物带铜-锌-金-银矿体；在迈阿盖波西矿段圈出了氧化带铁帽型金矿体、次生富集带铜矿体和原生硫化物带铜-锌-金-银矿体,并分别进行三维模拟和资源量估算。考虑到特瑞矿体的空间变异性特点,分别采用距离反比加权法和普通克里格法分别对矿体进行了资源量计算。计算结果为特瑞矿床下一步的预可研研究提供可靠的资源依据,并为该区域同类VMS型铜锌矿床资源量估算提供借鉴。 |
| 英文摘要: |
| The Terer VMS-type Cu-Zn-Au-Ag deposit is the first base metal deposit discovered in Ethiopia by Beijing Donia Resource Co. In the paper, authors conducted 3D modeling, grade and resource estimation of Terer VMS-type orebodies based on trench and drill dataset with Micromine (Version 11 0). According the geological characteristics and spatial distribution of orebodies in Terer, the orebodies in the central ore section, i.e., Adi Ekele section, and the western section, i.e., Mai Argab section, were modeled and estimated separately.With considering the spatial viability of orebodies, the inverse distance and ordinary Kriging approaches were used for the grade and resource estimation. By comparison of estimation results by these two methods, it shows the great similarities and indicates the modeling and estimation results are acceptable with Micromine tool. The result provides the resource base for the next stage pre-feasibility study of Terer deposit, and also provides a good example for modeling similar VMS deposits in this region. |
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