Età K-Ar delle ignimbriti permiane di Galtellì (Orosei-Sardegna Orientale)  [K-Ar age of ignimbrites of the Permian of Galtelli; Orosei, eastern Sardinia]

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Alternate Title:K-Ar age of ignimbrites of the Permian of Galtelli; Orosei, eastern Sardinia
Authors:Cozzupoli, D.; Gerbasi, G.; Nicoletti, M.; Petrucciani, C.
Author Affiliations:Primary:
Univ. Roma, Ist. Mineral. Petrogr., Rome 00185, Italy
Volume Title:Riunione Tematica; Il ruolo della geochimica nello sviluppo della geotermia
Source:Rendiconti della Società Italiana di Mineralogia e Petrologia, 39(2), p.471-476; Congresso della Società Italiana di Mineralogia e Petrologia, Palermo, Italy, 1983. Publisher: Editrice Succ. Fusi., Pavia, Italy. ISSN: 0037-8828
Publication Date:1984
Note:In Italian with English summary. 1 p. refs.; illus. incl. 20 anal., 2 tables, geol. sketch map
Summary:Petrochemical data and K/Ar ages of Permian volcanic rocks outcropping in the Cedrino valley near Galtelli are presented. These outcrops are mostly represented by rhyolitic ignimbrites with a mineralogical composition and petrochemical characteristics very similar to those of the late Palaeozoic ignimbrites of Ogliastra and other areas of Sardinia. K/Ar analyses were carried out on various samples of ignimbrites; following Hunziker's total isochron method, an age of 284 m.y. is obtained, which dates these volcanic rocks as very late Carboniferous to very early Permian. [J.M.H.]
Subjects:Absolute age; Carboniferous; Dates; Geochronology; Igneous rocks; Ignimbrite; Isochrons; K/Ar; Major elements; Paleozoic; Permian; Petrographic norms; Petrology; Pyroclastics; Rhyolitic composition; Stratigraphy; Upper Carboniferous; Volcanic rocks; Europe; Italy; Sardinia Italy; Southern Europe; Eastern Sardinia; Galtelli volcanites
Abstract Numbers:86M/0012
Record ID:1987054429
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom, Reference includes data from PASCAL, Institute de l'Information Scientifique et Technique
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