felsic

Etymology
,.

Adjective

 * 1)  Enriched in minerals predominantly composed of the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium.
 * 2) * 1983, Paul C. Bateman, A summary of critical relations in the central part of Sierra Nevada batholith, California, U.S.A., J. A. Roddick (editor), Circum-Pacific Plutonic Terranes, Memoir 159, page 241,
 * Within comagmatic suites, successively younger granitoids are commonly, but not invariably, more felsic, representing progressively lower temperature mineral assemblages.
 * 1) * 1992, David C. Champion, Bruce W. Chappell, Petrogenesis of felsic I-type granites: an example from northern Queensland, P. E. Brown, B. W. Chappell (editors), The Second Hutton Symposium on the Origin of Granites and Related Rocks, Proceedings, Special Paper 272, [Originally published in Transactions of the : Earth Sciences, Volume 83], page 115,
 * The Claret Creek Supersuite granites are a little more felsic (65-77% ), and are chemically distinctive, having higher, , and , and lower , ,  and  than the granites of the Almaden Supersuite.
 * The Claret Creek Supersuite granites are a little more felsic (65-77% ), and are chemically distinctive, having higher, , and , and lower , ,  and  than the granites of the Almaden Supersuite.

Noun

 * 1) A rock with such properties.
 * 2) * 1953, R. C. Emmons, Chapter 6: Petrogeny of the Syenites and Nepheline Syenites of Central Wisconsin, R. C. Emmons (editor), Selected Petrogenic Relationships of Plagioclase, Memoir 52, page 80,
 * The central part of this nepheline syenite is very white felsics with black mafics in it. The entire area contains many nepheline-bearing dike rocks, but almost all are gray or pink or even red due to the color in the felsics.