| 扇形孔勘探中矿体品位计算方法的优化 |
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| 引用本文： | 秦仁高.扇形孔勘探中矿体品位计算方法的优化[J].安徽地质,2005,15(3):207-209. |
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| 作者姓名： | 秦仁高 |
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| 作者单位： | 铜都铜业股份有限公司安庆铜矿,安徽,安庆,246131 |
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| 摘 要： | 扇形孔勘探已广泛用于各勘探阶段,当所控制的矿体因矿石类型或矿化均匀性不同而具有明显分带性时,使用传统的地质品位计算方法（无论是算术平均法还是加权平均法）,会产生较大的品位误差而使矿体品位失真.作者通过实践探索,对加权平均法进行优化,提出一种新的面积加权平均法——条带面积加权平均法,较好的反映了品位的真实性,值得借鉴.
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| 关 键 词： | 扇形孔 带状分布 品位误差 条带面积加权平均法 |
| 文章编号： | 1005-6157（2005）03-207-03 |
| 收稿时间： | 2005-02-20 |
| 修稿时间： | 2005年2月20日 |
OPTIMIZATION OF GRADE CALCULATION FOR THE OREBODY EXPLORED BY SECTOR DRILLS |
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| QIN Ren-gao.OPTIMIZATION OF GRADE CALCULATION FOR THE OREBODY EXPLORED BY SECTOR DRILLS[J].Geology of Anhui,2005,15(3):207-209. |
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| Authors: | QIN Ren-gao |
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| Abstract: | The sector drilling is extensively used at each exploration stage. If the orebody, explored by sector drills, is evidently zoned in ore types and mineral contents, the traditional ore grade calculation, whether by the arithmetic average method or by weight average method, would produce distinct error in the outcome. Through exploring during the experience of sector drilling, the author has developed a new weight average method, the band area weight average, which is optimization of the traditional weight average and can make the estimation closer to the true grade of the drilled orebody. |
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| Keywords: | sector drills zoned distribution grade error band area weight average |
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