Shoshonite is a type of igneous rock. More specifically, it is a potassium -rich variety of basaltic trachyandesite, [1] composed of olivine, augite and plagioclase phenocrysts in a groundmass …

Shoshonite grades into absarokite with an increase in olivine and into banakite with more sanidine. Shoshonite is found in field S2 in the TAS diagram. Commonly used as a synonym …

Jan 15, 1980 · Shoshonitic rocks on continental margins are younger, stratigraphically higher and more distant from the oceanic trench than the high-K calc-alkaline or calc-alkaline suites, but …

Feb 27, 2014 · We describe a shoshonite suite of ultramafic through basaltic to granitic rocks in eastern Tibet that follow the Red River fault zone and its northern extension, the Batang …

The island arc alkali series volcanic rock is represented by the shoshonite association, which is a representative rock association of mature island arcs.

Oct 1, 2015 · These deep geological and tectonic events in turn produced the shoshonite volcanic rocks in the Luzong Basin. 1. Introduction. The rock name ‘shoshonite’ was proposed by …

Shoshonite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the …

A trachyandesite composed of olivine and augite phenocrysts in a groundmass of labradorite with alkali feldspar rims, olivine, augite, a small amount of leucite, and some dark-colored glass. Its …

Jul 1, 2009 · Fijian shoshonitic suites display a range of enrichment in large ion lithophile elements, Th, U, and P relative to rare earth elements and high field strength elements …

A trachyandesite composed of olivine and augite phenocrysts in a groundmass of labradorite with alkali feldspar rims, olivine, augite, a small amount of leucite, and some dark-colored glass. …