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Titolo:
Petrographic, geochemical and radiometric data on Tertiary volcano-arenitic beds from the Sicilian Maghrebian Chain: Volcanic sources and geodynamic implications
Autore:
Balogh, K; Cassola, P; Pompilio, M; Puglisi, D;
Indirizzi:
Univ Catania, Dipartimento Sci Geol, I-95129 Catania, Italy Univ Catania Catania Italy I-95129 ento Sci Geol, I-95129 Catania, Italy CNR, Ist Int Vulcanol, I-95123 Catania, Italy CNR Catania Italy I-95123CNR, Ist Int Vulcanol, I-95123 Catania, Italy Hungarian Acad Sci, Inst Nucl Res, H-4001 Debrecen, Hungary Hungarian AcadSci Debrecen Hungary H-4001 Res, H-4001 Debrecen, Hungary
Titolo Testata:
GEOLOGICA CARPATHICA
fascicolo: 1, volume: 52, anno: 2001,
pagine: 15 - 21
SICI:
1335-0552(200102)52:1<15:PGARDO>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
MIOCENE; EVOLUTION; SERIES; BASIN;
Keywords:
Sicilian Maghrebian Chain; Reitano Flysch; Oligocene; volcanogenic sediments; petrography; geochemistry; K/Ar dating;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
53
Recensione:
Indirizzi per estratti:
Indirizzo: Puglisi, D Univ Catania, Dipartimento Sci Geol, Corso Italia 55, I-95129 Catania, Italy Univ Catania Corso Italia 55 Catania Italy I-95129 ania, Italy
Citazione:
K. Balogh et al., "Petrographic, geochemical and radiometric data on Tertiary volcano-arenitic beds from the Sicilian Maghrebian Chain: Volcanic sources and geodynamic implications", GEOL CARPAT, 52(1), 2001, pp. 15-21

Abstract

The volcanic fraction of impure volcano-arenitic beds of the Reitano Flysch (Early Oligocene, Sicilian Maghrebian Chain) was investigated by petrographic, geochemical and radiometric techniques. Two distinct volcanic grain populations were recognized: (1) paleovolcanic clasts, Late-Permian in age and calc-alkaline in character, probably linked to late-Hercynian magmatism and (2) alkaline (potassic) neovolcanic clasts. As regards the alkaline fraction, it is difficult to link its provenance with the Oligocene-Miocene Sardinia volcanism. Indeed, this latter volcanism shows a distinct calc-alkaline character typical of subduction and/or collision-related magmas. We suggest that the volcanic sources of this alkaline fraction could be related to magmatic events close to the sedimentary basin and associated with extensional processes preluding the opening of new oceanic areas (i.e. Algero-Provencal Basin and Sardinia Rift).

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/12/20 alle ore 12:39:49