porphyrite (Q43820)
From geokb
An obsolete term originally used for a porphyry that contains mostly plagioclase phenocrysts and mafics in contrast to those that contain mostly alkali feldspar phenocrysts
Language | Label | Description | Also known as |
---|---|---|---|
English | porphyrite |
An obsolete term originally used for a porphyry that contains mostly plagioclase phenocrysts and mafics in contrast to those that contain mostly alkali feldspar phenocrysts |