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岩石的化学成分研究是鉴定岩石、确定岩石类别、恢复原岩、讨论岩石形成条件、对比岩石特征等的重要方法之一。在岩石学计算方法中,列文生——列信格(1897)、奥森(1899)、尼格里(1923)、查瓦里茨基(1935)、库兹涅佐夫(1947)等做出了重要的贡献。尽管他们的一些方法用电子计算机时代的今天的认识水平去观察,显得那样简陋和落后,但仍未失其应用价值。然而,以往的任何一种方法,都是单元分析方法,而且计算上受到工具的限制,不可能处理大量数据。有时人为的把各种变量归并,致使许多有价值的原始信息,就只因其不适合预想的分类而被略去,这种以定性的与经验的理论为特征的方法,已经为很多学者质疑和批评,并且人们在不断寻求岩石化学的定量计算的各种途径。
The chemical composition of rock is one of the important methods to identify rock, determine rock type, restore original rock, discuss rock formation conditions and compare rock characteristics. In the calculation of petrology, Levinson-Lester (1897), Orson (1899), Negri (1923), Chavitzki (1935), Kuznetsov (1947), etc. Out of an important contribution. Although some of their methods are so rudimentary and backward that they look and understand today’s level of understanding in the computer age, they have not yet lost their value. However, any of the previous methods, which are unitary methods, are computationally tool-bound and can not handle large amounts of data. Sometimes man-made merging of various variables leads to the omission of many valuable original information simply because of its unfavorable classification. This method characterized by qualitative and empirical theories has been questioned by many scholars And criticism, and people are constantly seeking various ways of quantitative calculation of rock chemistry.