In this paper the existence of a till now unknown small Quaternary volcanic center related to an exposed intrusive body is pointed out. It is located in the South-Western Umbria-Marche Apennines, close to Spoleto, in corrispondence with a set of tectonic discontinuities at the Western boundary of the Valle Umbria Graben. The intrusive body (dike) is a melilite-wollastonite bearing rock, with a carbonatitic bulk composition. It belongs to a volcanic district here named « Distretto carbonatitico umbro-laziale ». The presence of carbonatites connected with the peri-Tyrrhenian Quaternary potassic volcanics emphasize the extensional geodynamic setting of the magmatic activity itself.

L'Euremite di Colle Fabbri (Spoleto): un litotipo ad affinità carbonatitica in Italia. / STOPPA F.. - In: BOLLETTINO DELLA SOCIETÀ GEOLOGICA ITALIANA. - ISSN 0037-8763. - STAMPA. - 107(1988), pp. 239-248.

L'Euremite di Colle Fabbri (Spoleto): un litotipo ad affinità carbonatitica in Italia.

STOPPA, Francesco
1988

Abstract

In this paper the existence of a till now unknown small Quaternary volcanic center related to an exposed intrusive body is pointed out. It is located in the South-Western Umbria-Marche Apennines, close to Spoleto, in corrispondence with a set of tectonic discontinuities at the Western boundary of the Valle Umbria Graben. The intrusive body (dike) is a melilite-wollastonite bearing rock, with a carbonatitic bulk composition. It belongs to a volcanic district here named « Distretto carbonatitico umbro-laziale ». The presence of carbonatites connected with the peri-Tyrrhenian Quaternary potassic volcanics emphasize the extensional geodynamic setting of the magmatic activity itself.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11564/110863
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