The Petrographic Distinction Between Basalt and Andesite Based Upon the Arrested Fractionation of Plagioclase Phenocrysts
Year: 1987
Type: article
Abstract: The petrographic classification of volcanic rocks containing plagioclase phenocrysts requires that the effects of arrested fractional crystallization be taken into account. A simple graphical method can accomplish this task. The composition versus crystallization curves employed in the method were obtained by step-wise integration along the liquidus and solidus curves of the plagioclase phase diagram using a simple computer program.
Source: Journal of Geological Education
Authors: G. Donald Garlick, Benjamin J. Garlick
Institutions: Cal Poly Humboldt, University of California, Davis
Language: English
Subfield: Geochemistry and Petrology
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W255675813