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A Guide to the Chemical Classification of the Common Volcanic Rocks
Home
Publications
A Guide to the Chemical Classification of the Common Volcanic Rocks
A Guide to the Chemical Classification of the Common Volcanic Rocks
TI
T. N. Irvine
T. N. Irvine
WB
W. R. A. Baragar
W. R. A. Baragar
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1 May 1971
journal article
Published by
Canadian Science Publishing
in
Canadian Journal of Earth Sciences
Vol. 8
(5)
,
523-548
https://doi.org/10.1139/e71-055
Abstract
A system is presented whereby volcanic rocks may be classified chemically as follows:I. Subalkaline Rocks:A. Tholeiitic basalt series:Tholeiitic picrite-basalt; tholeiite; tholeiitic andesite.B. Calc-alkali series:High-alumina basalt; andesite; dacite; rhyolite.II. Alkaline Rocks:A. Alkali olivine basalt series:(1) Alkalic picrite–basalt; ankaramite; alkali basalt; hawaiite; mugearite; benmorite; trachyte.(2) Alkalic picrite–basalt; ankaramite; alkali basalt; trachybasalt; tristanite; trachyte.B. Nephelinic, leucitic, and analcitic rocks.III. Peralkaline Rocks:pantellerite, commendite, etc.
Keywords
VOLCANIC ROCK
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