Identification of altered metabasalts from ASTER data

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Silvia Castro Godoy
Mariela Etcheverría
Marta Godeas


ASTER data allowed developing a simple methodology, using the Short Wave Infrared spectral bands (SWIR), in order to detect alteration minerals that affect igneous bodies and have spectral differences with the country rock. As an example chloritic alteration was detected in metabasalts interbedded in metasediments of Puntilla de Uspallata Formation, Precordillera Mendocina.

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Castro Godoy, S., Etcheverría, . M., & Godeas, M. (2010). Identification of altered metabasalts from ASTER data. Revista De La Asociación Geológica Argentina, 66(4), 565-568. Retrieved from

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