Physicochemical characteristics and behavior of the serpentinous peridotite outcrops of San Jose and New ldria (California, USA) upon heating treatment

The iron magnesia ultra basic serpentinous rocks of San Jose and New Idria (California, USA) have been subjected to physicochemical analysis. Changes in the material's characteristics and behavior as a result of heat treatment have been investigated and quantified by using macro- and microscopic, X-ray and differential thermal analysis. Differences in response to heat treatment were seen for the various samples and could be correlated with the distribution of the ortho- and metasilicate anions participating in the formation of the serpentine silicate lattice (SSL) under hydrothermal conditions. The latter depends on the abundance of the starting minerals in the parent ultra basic rock. [PUBLICATION ABSTRACT]