Sims says measurements of the grade, mineral matrix, and size of the ore deposit appear favorable to commercial extraction.

希姆斯说对矿品位、矿母及矿床大小的测量对商业提取显得十分有益。

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Pingcha gold deposit is a Sb-Au of rich in sulphide, controlled by the E-W secondary fracture and alteration zone and being small in scal but high in grade.

靖州平茶金矿为多硫化物型锑金矿床，矿化受近东西向次级断裂和蚀变带控制，矿床规模小，但品位高。

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The limitation of geological conditions is important to model a deposit. The geological statistics methods are effective for ore grade estimation and reserve classification.

地质控制条件限制是矿床建模的重要手段， 地质统计学方法是矿块品位估计以及储量分级等的有效方法。

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These are caused by a variety of factors, such as weather, labor strikes, or simply a poor grade deposit.

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