| 武晗.固体矿产勘查中矿体外推问题探讨[J].地质找矿论丛,2017,32(3):505-508 |
| 固体矿产勘查中矿体外推问题探讨 |
| Discussion on extrapolation problem of ore body in solid mineral resources exploration |
| 投稿时间：2016-11-07 修订日期：2017-02-24 |
| DOI：10.6053/j.issn.1001-1412.2017.03.022 |
| 中文关键词: 固体矿产勘查 地质工作程度 矿体外推 资源/储量分类 |
| 英文关键词:solid mineral exploration degree of geological works orebody extrapolation classification of resources/reserves |
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| 中文摘要: |
| 固体矿产勘查储量计算过程中，矿体圈连时不可避免地会涉及到矿体外推的地质问题。其中，矿体外推的介质为储量计算剖面图和矿体中段水平投影图，矿体外推方式根据外推介质的不同分为沿走向外推和沿倾向外推。此外，根据有无探矿工程的限制可分为有限外推和无限外推，矿体外推起点为有探矿工程控制的矿体边缘样品工程，矿体外推长度分为"尖灭<1/2工程间距、尖推=1/2工程间距、平推=1/4工程间距"，外推矿体任何部位厚度必须小于矿体外推起点处矿体厚度。矿体外推与资源/储量分类关系密切，一般情况下外推矿体的资源量类型应为333。 |
| 英文摘要: |
| In reserves calculation of solid mineral resources is always concerned with extrapolation of ore bodies. Profile and horizontal projection of mining levels of ore bodies are media for the extrapolation and the ore body is generally extrapolated along strike or dip of the ore body. According to control or non-control with the exploration workings the extrapolation is divided into the definite and indefinite types. The extrapolation is started from the exploration working-controlled margin of the ore body. The extrapolation length is <1/2 of the working interval for tip-push and 1/4 of the working for push. Thickness of the extrapolated ore body at any point must not be thicker than that at the starting point. The extrapolation is closely related to classification of reserves. Generally, the reserve of the extrapolated ore body belongs to reserves type 333. |
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