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前言岩石化学计算与图解是研究岩石尤其是岩浆岩的重要方法。C·I·P·W、P·尼格里、A·H·查瓦里茨基、A·里特曼等先后提出了许多计算及作图方法,对岩石化学研究起了很大作用。但由于超基性岩的某些特殊性,使得广为岩石工作者采用的一般计算及图解方法不能明显反映其特有的规律。近年以来,随着铬、镍、钴、铂等与超基性岩有关的矿产地质工作的深入,国内外许多学者先后拟定了超基性岩的岩石化学计算方法,对超基性岩岩石化学研究作出了贡献。1959年索波列夫对查氏图解作了修改,提出了专为超基性岩的岩石化学计算及
Introduction Rock chemistry calculations and diagrams are important ways to study rocks, especially magmatic rocks. Many computation and mapping methods have been proposed by CCW, P. Negri, A.H. Chawaritzki, A. Rittman and others, and have played a significant role in petrochemical research. However, due to the special nature of ultramafic rocks, the general calculation and graphical methods adopted by a wide range of rock workers do not clearly reflect their peculiar laws. In recent years, with the deepening of mineral geology related to ultramafic rocks such as chromium, nickel, cobalt and platinum, many scholars at home and abroad have drawn up petrochemical calculation methods of ultrabasic rocks successively. Research has made its contribution. In 1959, Sopoliv made a change to the diagram of Zhashi, and proposed the petrochemical calculation for ultrabasic rocks and