The Origin of Peralkaline Obsidians: A Discussion

Stephen D. Weaver and Ian L. Gibson
Department of Geological Sciences, University of Birmingham, Birmingham B15 2TT
Department of Geology, Bedford College (University of London), Regent's Park, London, NW1 4NS

Mineralogical Magazine; December 1975 v. 40; no. 312; p. 415-416; DOI: 10.1180/minmag.1975.040.312.11
© 1975, The Mineralogical Society
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