Hydrothermal quartz textural analysis from El Pantanito epithermal ore deposit, province of Mendoza: New contributions on its genesis

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Nora Rubinstein
María Florencia Gargiulo

Abstract

Hydrothermal quartz textural analysis from El Pantanito ore deposit, provide new information about the genesis of this low sulphidation Au epithermal mineralization. It is located in the San Rafael Massif, province of Mendoza, Argentina, and is hosted by a permo-triassic volcanic sequence with geochemical characteristics transitional between subduction and continental intraplate settings. The combined occurrence of calcite pseudomorphically replaced by quartz, crustiform-colloform silica and adularia, reflect that the erosion level is within the paleozone of boiling upflow. Overprinting of textures generated at different depths within the deposit, suggests telescoping produced by downward propagation of the boiling front and therefore the domain of precious metal deposition.

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Rubinstein, N., & Gargiulo, M. F. (2005). Hydrothermal quartz textural analysis from El Pantanito epithermal ore deposit, province of Mendoza: New contributions on its genesis. Revista De La Asociación Geológica Argentina, 60(1), 96-103. Retrieved from https://revista.geologica.org.ar/raga/article/view/1017
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