A Heteromorph of Venanzite
- 1 August 1942
- journal article
- research article
- Published by Cambridge University Press (CUP) in Geological Magazine
- Vol. 79 (4) , 225-232
- https://doi.org/10.1017/s001675680007391x
Abstract
Venanzite. Venanzite is a volcanic rock consisting essentially of y melilite, leucite, olivine, and a little phlogopitic biotite, which occurs as small lava-flows of late- or post-Pliocene age near San Venanzo, Umbria, Italy. This isolated centre of activity lies north-west of Lake Bolsena and is regarded as an outlying part of the Vulsinian district of the Roman netroaranhic nrovince.Keywords
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