K. J. Murata 1977 <p>Bloedite, epsomite, and related minerals occur in small amounts throughout the arid eastern foothills of the Diablo and Temblor Ranges, as efflorescences on siliceous shale and as deposits around small springs and a brine pond. These minerals ultimately are products of weathering of underlying organic shale, and they are reminders that the chemistry of weathering of reduced organic shale is largely a reversal of the chemistry of its early diagenesis.</p> application/pdf en U.S. Geological Survey Occurrence of bloedite and related minerals in marine shale of Diablo and Temblor Ranges, California article