二级套合结构实验变差函数的几何拟合

GEOMETRICAL FIT OF EXPERIMENTAL VARIOGRAMWITH DOUBLE STRUCTURES

叠加地球化学场表现为各地球化学元素的变差函数具有双重套合结构。拟合实验交差函数是分解叠加地球化学场的关键。本文依据地球化学场自相关与自相似的内在联系，提出用多标度分形谐方法拟合具有二级套合结构的实验交差函数。

Complex geochemical field is always depicted by geochemical element variogram withdouble structures. Fit of experimental variogram with double structures is the key for partition of complex geochemical field. In the present paper, a new geometrical method, multifractal, according to linkof auto--correlation and self-similarity in the geochemical field, is put forward for fit of experimental variogram with double structures.