The dumortierite-bearing assemblages of Virorco, San Luis, Argentina: are they pegmatitic dikes or hydrothermal veins?

M. Á. GALLISKI, M. F. MÁRQUEZ-ZAVALÍA AND R. LIRA

Asociación Geológica Argentina. Serie D: Publicación especial Nº 14

Asociación Geológica Argentina. CONICET CCT Mendoza

Lugar: Mendoza; Año: 2011 p. 99 - 101

0328-2767

The descriptive mineralogy of dumortieritebearing assemblages of Virorco was initially recorded by Gay & Galliski (1978). These rocks consist of zoned veins with dumortierite-tourmaline-kyanitechrysoberyl, now regarded as an assemblage found in granitic pegmatites of the abyssal class. The mineralogy and geochemistry of these rocks were studied in more detail, including EPM and LA-ICPMS chemical analyses of minerals, and conventional chemical analyses of rocks, in order to clarify the origin and parameters of crystallization. rocks were studied in more detail, including EPM and LA-ICPMS chemical analyses of minerals, and conventional chemical analyses of rocks, in order to clarify the origin and parameters of crystallization. mineralogy and geochemistry of these rocks were studied in more detail, including EPM and LA-ICPMS chemical analyses of minerals, and conventional chemical analyses of rocks, in order to clarify the origin and parameters of crystallization.