Geochemical constraints on magma processes in a peralkaline system - The Paisano volcano, west Texas

Details Geochemical constraints on magma processes in a peralkaline system - The Paisano volcano, west Texas Geochemical constraints on magma processes in a peralkaline system - The Paisano volcano, west Texas

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984gecoa..48.2443m&link_type=abstract

Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 48, Dec. 1984, p. 2443-2455. Research supported by the Geological Society

Mathematics

Logic

4

Chemical Evolution, Geochemistry, Magma, Volcanoes, Abundance, Petrography, Texas, Trace Elements, Trachyte

Scientific paper

Petrographic and trace element data from a continuous stratigraphic sequence of flows from the peralkaline Paisano Volcano in west Texas are used to delineate magnetic processes responsible for the chemical evolution of this volcano. It is shown that crystal fractionation of the phenocrystic assemblage explains the main compositional variation, but magma mixing of a less evolved melt composition also affected the chemical evolution of the volcano.

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