THE TYPE OF FRACTAL STRUCTURE FACTOR FOR SPINEL FROM METAPERIDOTITE AND ITS SIGNIFICANCE
变质橄榄岩中尖晶石的分形结构因子类型及其成因意义

The fractal structure factors (FSF ) of spinel from ultramafic xenolith, harzburgite,dunite and chromite have been calculated using a new method presented by Shen (1993).Four kinds of type and its significance for fractal structure factor of spinel also have been studied, and the four kinds of type are:(1)very strong variety of Al and Cr:(2) strong variety of Al and Cr; (3) strong variety of Mg and Fe2-;(4) very strong variety of Mg and Fe2 . It is shown by a lot of table and figure that the fractal structure factor is a strong approach to express the structurization of space distribution of matter and interrelation betweendata. The FSF(A1, Cr) versus FSF (Mg, Fe2- ) diagram is better than Cr/(Cr A1) versus Mg/(Mg Fe2 )diagram to presume the cause of formation of spinel and original rock.