Abstract
The article describes a technique for 2D modeling of structures and textures of bimineral rocks in terms of the probabilities of binary intergranular contacts. It is shown that typical petrographic structures (disseminated, chained, poikilitic, porphyric) and textures (massive, banded, schlieren) regularly fill the barycentric diagram (pii, pjj, pij) of contact probabilities. These structures and textures are correlated with the Hardy-Weinberg equilibrium. The problems of modeling polymineral petrographic structures and textures are discussed. A new type of structural diagrams is suggested. The article is dedicated to the memory of Dr. Sci. Yu. A. Tkachev — a well-known Russian specialist in the field of modeling the structures of sedimentary rocks.
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