Geologists sometimes find it useful to classify igneous rocks based on color. Because color is sensitive to minor chemical differences it is not a very reliable index to the history or composition of any given rock; however, it has the merit of being...

Felsic is a term used in geology to refer to silicate minerals, magmas, and rocks which are enriched in the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium. The term combines the words "feldspar" and "silica." Felsic minerals...

The Gföhl migmatite-gneiss complex forms the largest anatectic unit of the Variscan erogenic root domain. The origin of this migmatitic unit was classically attributed to the anatexis and the different degree of migmatitization explained by the variable degree of partial melting. A new...

Abstract: Felsic magmatism is often observed in the final stages of the eruption of continental large igneous provinces. The occurrence of these felsic extrusive igneous rocks potentially provides key information on the complex interplay of magmatism and tectonics. In this paper we investigate the...