Hybrid origin of the absarokite-shoshonite-banakite Series, Absaroka Volcanic Field, Wyoming
Geological Society of America Bulletin
By: Harold J. Prostka
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Abstract
Textural and mineralogical features of potash-rich basaltic rocks of the absarokite-shoshonite-banakite series strongly suggest that most of the large crystals and aggregates in these rocks are xenocrysts and microxenoliths, not true phenocrysts as was previously thought. A hybrid origin, involving assimilation of gabbro by high-temperature syenitic magma, is proposed.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Hybrid origin of the absarokite-shoshonite-banakite Series, Absaroka Volcanic Field, Wyoming |
| Series title | Geological Society of America Bulletin |
| DOI | 10.1130/0016-7606(1973)84<697:HOOTAS>2.0.CO;2 |
| Volume | 84 |
| Issue | 2 |
| Year Published | 1973 |
| Language | English |
| Publisher | Geological Society of America |
| Description | 5 p. |
| First page | 697 |
| Last page | 701 |
| Country | United States |
| State | Wyoming |
| Other Geospatial | Absaroka Volcanic Field |