View source for Felsic

==English==
{{wp}}

===Etymology===
{{blend|en|feldspar|silica}}, {{suf|en||ic}}.

===Pronunciation===
{{rfp|en}}
* {{audio|en|LL-Q1860 (eng)-Vealhurl-felsic.wav|a=Southern England}}

===Adjective===
{{en-adj}}

# {{lb|en|petrology}} Enriched in minerals predominantly composed of the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium.
#: {{syn|en|acidic|sialic|silicic}}
#: {{cot|en|mafic}}
#* {{quote-book|en|author=J. C. Olson; D. R. Shawe; L. C. Pray; W. N. Sharp|title=Rare-Earth Mineral Deposits of the Mountain Pass District, San Bernadino County, California|publisher=w:U.S. Geological Survey|year=1954|section=Professional Paper 261|pageurl=https://books.google.com.au/books?id=vEtXAAAAMAAJ&pg=PA22|page=22|passage=Much of the southern half of the southeastern body is a mafic syenite, slightly more '''felsic''' than the shonkinite.}}
#* {{quote-journal|en|author=Paul C. Bateman|editor=J. A. Roddick|journal=Circum-Pacific Plutonic Terranes|title=A summary of critical relations in the central part of Sierra Nevada batholith, California, U.S.A.|url=https://books.google.com.au/books?id=TMnQndCxVzMC|publisher=w:Geological Society of America|year=1983|section=Memoir 159|page=241|pageurl=https://books.google.com.au/books?id=TMnQndCxVzMC&pg=PA241|text=Within comagmatic suites, successively younger granitoids are commonly, but not invariably, more '''felsic''', representing progressively lower temperature mineral assemblages.}}
#* {{quote-journal|en|author=David C. Champion, Bruce W. Chappell|editor=P. E. Brown, B. W. Chappell|journal=The Second Hutton Symposium on the Origin of Granites and Related Rocks|title=Petrogenesis of '''felsic''' I-type granites: an example from northern Queensland|url=https://books.google.com.au/books?id=tUgCAQAAQBAJ|publisher=w:Geological Society of America|year=1992|section=Special Paper 272|page=115|pageurl=https://books.google.com.au/books?id=tUgCAQAAQBAJ&pg=PA115|text=The Claret Creek Supersuite granites are a little more '''felsic''' (65-77% <chem>SiO2</chem>), and are chemically distinctive, having higher <chem>Al2O3</chem>, <chem>CaO</chem>, <chem>Na2O</chem> and <chem>Sr</chem>, and lower <chem>K2O</chem>, <chem>Rb</chem>, <chem>Th</chem> and <chem>U</chem> than the granites of the Almaden Supersuite.}}

====Derived terms====
{{col|en|felsification
|nonfelsic
}}

====Related terms====
* {{l|en|felsite}}

===Noun===
{{en-noun}}

# A rock with such properties.
#* {{quote-journal|en|author=R. C. Emmons|editor=R. C. Emmons|journal=Selected Petrogenic Relationships of Plagioclase|title=Petrogeny of the Syenites and Nepheline Syenites of Central Wisconsin|url=https://books.google.com.au/books?id=C0hIKuD4tg8C|publisher=w:Geological Society of America|year=1953|section=Memoir 52|page=80|pageurl=https://books.google.com.au/books?id=C0hIKuD4tg8C&pg=PA80|text=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'''.}}
#* {{quote-book|en|year=1992|author=T. E. Smith|chapter=1|editor=K. C. Condie|title=Proterozoic Crustal Evolution|publisher=Elsevier|pageurl=https://books.google.com.au/books?id=nHfwi-mXYgIC&pg=PA35|page=35|text=There are also calcalkaline '''felsics''' that have highly enriched LREE<sup>[light rare-earth element]</sup> patterns with lower overall abundances.}}

===Anagrams===
* {{anagrams|en|a=cefils|lesfic}}

{{C|en|Rocks}}