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What is Geochemical Homogeneity of Cerro Galán about?

This study analyzes samples from the Cerro Galán caldera in NW Argentina to understand the long-term evolution of its large silicic magmatic system. The system repeatedly erupted rhyodacitic magmas over 3.5 million years, with nearly identical geochemistry. Two main clast types are found - dominant "white" pumice and subordinate "grey" pumice. Geochemical modeling suggests the ignimbrites crystallized from the same parental "grey" magma, with minor variations explained by differing crystal fractionation amo

Author

Rene Yasmany Cobas Torres

Language

EN