Fractal properties of the gold-ore fields

摘要

The fractal structure of zoned gold-ore fields is base dontheir character over a range of scales of observation; from the macroscopical level of teh ore-field down to the atomic structure of constituent minerals. Fractal geometry implies self-organization of mineral matter within the ore-field and this, in turn, implies a long-term interaction between the units of teh mineral continuum. Intermediate aquacomplexes of the type [2SiO_3-OH_2-2(M~(n+)M~(m+)) (n=1,2; m>=3, O'-volatile elements) facilitate this interaction. The mechanism is accompanied by an energy flow, during structure-chemical transformations of mineral matter, which triggers the extraction and migration of gold, in association with iron, via the specific intermediate complex of [2SiO_3 - OH_2-2(AuM~(n+); FeM~(m+))O'_4]. Dposition of gold results from disassociation of the complex into SiO_2, H_2O, Au, and sulfide components, especially during inversion of the Ox/Red potential when free sulfur becomes available.