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有益组份及有害元素含量的多寡,是进行矿床經济地質評价的主要依据。而能否真实地反映这一客观情况,又主要取决于化学取样及化学分析的合理性和正确性。“地質与勘探”1958年第三期与本期連續发表了五篇化学取样方面的文章,分別就化学取样方法的选择、样品的合併等问题进行了探討,并介绍了有关单位的实际经驗,我們認为这是必要的。几年来,随着地質勘探水平的提高,化学取样工作也有了很大的改进与提高,为評价矿床,圈定矿体,划分儲量級別和計算儲量提供了有力的依据,保证了儲量报告的完整性。但是,在化学取样工作中也还存在一些问题。例如,有的单位的化学取样工作沒有根据不同矿床的特性,合理地选择取样方法,尽量采用更簡易、更經济的方法达到取样的目的;有的在规格和间距方面,缺乏系統地試驗研究,还有的取样的目的性不明确,在佈置样品时不够慎重,使许多样品失去了实际作用。此外,由于样品管理不善,人为的造成返工补课,造成浪
Beneficial components and the amount of harmful elements, is the main basis for the economic evaluation of mineral deposits. Whether this objective situation can be truly reflected depends mainly on the rationality and correctness of chemical sampling and chemical analysis. Geology and Exploration The third issue of 1958 and the current issue of five consecutive articles on chemical sampling, respectively, on the choice of chemical sampling methods, sample mergers and other issues were discussed and introduced the actual experience of the relevant units, We think this is necessary. In recent years, with the improvement of geological exploration, chemical sampling has also been greatly improved and improved, providing a strong basis for evaluating ore deposits, delineating ore bodies, classifying reserves and calculating reserves, and ensuring the integrity of reserve reports . However, there are still some problems in chemical sampling. For example, chemical sampling in some units did not select sampling methods reasonably according to the characteristics of different deposits, and tried to adopt simpler and more economical methods to achieve the purpose of sampling as much as possible. Some did not systematically test and study the specifications and pitches, Still others were ambiguous in their purpose and were not careful in arranging the samples, leaving many samples with no practical effect. In addition, due to poor sample management, artificially causing rework missed classes, resulting in waves