Markovian Grain Relationships of a Grenville Granulite.

摘要

An exhaustive series of tests proves that the sequences of mineral-grain transitions along linear traverses across two mutually perpendicular sets of serial sections of a Grenville calc-silicate granulite possess the Markov property. The component amphibole, scapolite, and pyroxene are non-randomly spatially distributed, and grains of the same mineral are in contact less frequently than would be expected if randomly sited. Analogous relationships in granites were claimed by vistelius and coworkers to reflect crystallization from a melt. The significance of the Markovian grain sequences in these metasedimentary rocks is assessed briefly. (Author)