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
TrachyteBasaltAndesiteGeochemistryGeologyAlkali basaltVolcanic rockRhyoliteDaciteBasaltic andesitePeralkaline rockOlivinePetrologyVolcano
Related Publications
A Chemical Classification of Volcanic Rocks Based on the Total Alkali-Silica Diagram
This contribution summarizes and brings up to date the recommendations made by the IUGS Subcommission on the Systematics of Igneous Rocks for the classification of volcanic rock...
Publication Info
- Year
- 1971
- Type
- article
- Volume
- 8
- Issue
- 5
- Pages
- 523-548
- Citations
- 7185
- Access
- Closed
External Links
Social Impact
Altmetric
PlumX Metrics
Social media, news, blog, policy document mentions
Citation Metrics
7185
OpenAlex
Cite This
Τ. N. Irvine,
W R A Baragar
(1971).
A Guide to the Chemical Classification of the Common Volcanic Rocks.
Canadian Journal of Earth Sciences
, 8
(5)
, 523-548.
https://doi.org/10.1139/e71-055
Identifiers
- DOI
- 10.1139/e71-055