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A Heteromorph of Venanzite

Published online by Cambridge University Press:  01 May 2009

Arthur Holmes
Arthur Holmes
Affiliation:
University of Durham
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Extract

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.

Type
Articles
Information
Geological Magazine , Volume 79 , Issue 4 , August 1942 , pp. 225 - 232
Copyright
Copyright © Cambridge University Press 1942

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References

Bannister, F. A., and Hey, M. H., 1942. Kalsilite, a polymorph of KAlSi04, from Uganda. Min. Mag., 26, 218–224.Google Scholar
Cross, W., 1897. Igneous rocks of the Leucite Hills and Pilon Butte, Wyoming. Am. Journ. Sci. (4), 4, 115–141.CrossRefGoogle Scholar
Franco, P., 1895. Augite e peridoto della sabbie vulcaniche di S. Venanzio. Note mineralogiche. Rend. R. Accad. Sci fis. mat., Napoli, 124.Google Scholar
Holmes, A., 1937. The petrology of katungite. Geol. Mag., 74, 201–219.CrossRefGoogle Scholar
Holmes, A., 1942. A suite of volcanic rocks from south-west Uganda containing kalsilite (a polymorph of KAlSi04). Min. Mag., 26, 197–217.Google Scholar
Johannsen, A., 1938. A Descriptive Petrography of the Igneous Rocks, vol. iv, Chicago, footnote 1, 361.Google Scholar
Rodolico, F., 1937. Le zone vulcaniche di San Venanzo e di Cupaello. Boll. Soc. geol. Ital., 56, 33–66.Google Scholar
Rosenbusch, H., 1899. Über Euktolith, ein neues Glied der theralitischen Effusivmagmen. Sitz k. Akad. fViss. Berlin, 1, 110–15.Google Scholar
Sabatini, V., 1898. Sopra un nuova tipo di lava rinvenuto a S. Venanzo nell' Umbria. Roma. (Reference incomplete and not traced.)Google Scholar
Sabatini, V., 1899 a. I Vulcani di S. Venanzo. Riv. di Min. e Crist. Ital., 22, 3–12.Google Scholar
Sabatini, V., 1899 b. Relazione sul lavoro eseguito nel triennio 1896–7–8 sui volcani dell'Italia centrale, e sui loro prodotti. Boll. R. Com. geol. Ital. (III), 10, 60.Google Scholar
Sabatini, V., 1903. La pirossenite melilitica di Coppaeli. Boll. R. Com. geol. Ital., 34, 376–8.Google Scholar
Tröger, W. E., 1935. Spezielle Petrographie der Eruptivgesteine: Ein Nomen-klatur-Kompendium. Berlin, 273.Google Scholar
Washington, H. S., 1906. The Roman Comagmatic Region. Carnegie Inst. Washington, Pub. 57, 1–199.Google Scholar