Results 131 to 140 of about 1,743 (174)

Post-collisional late variscan granites of southern Sardinia: evidences of contrasting suites

2016
The Sardinia portion of the Sardinia-Corsica batholith emplaced mostly during the post collisional evolution of the Variscan chain. The majority of plutons emplaced in about 40 Ma during two phases, the older of which clustered at about 310 Ma, whereas the younger, clustered in the range of 290 Ma.The former is dominated by monzogranitic and ...
Conte A. M., Naitza S., Oggiano G., Secchi F., Cifelli F., Cuccuru S., D'ANTONIO, MASSIMO   +6 more
openaire   +2 more sources

Late Paleozoic extension in the Variscan basement of SE Sardinia (Italy)

1995
Abstract a congresso, 1995; supplemento a Terra ...
Conti, P., Carmignani, L., Benedetti, M., Cherchi, G., Chighine, G., Cincotti, F., Eltrudis, A., Funedda, A., Gattiglio, M., Oggiano, G., Patta, D., Sarria, E.   +11 more
openaire   +2 more sources

Shear belts in the Variscan axial zone in northern Sardinia (Italy)

2008
La zona assiale della catena Varisica sarda è attraversata da una fascia milonitica di spessore chilometrico e con cinematica destra, conosciuta come Linea Posada-Asinara (PAL), che separa un complesso metamorfico di medio e basso grado da un complesso metamorfico di alto grado.
Frassi C, Carosi R, MONTOMOLI, CHIARA
openaire   +1 more source

Late-Variscan fayalite-bearing granites in Sardinia: The lower crust connection

2013
"The Variscan [340 – 260 Ma, 1] Corsica-Sardinia. Batholith (C-SB) emplaced discordantly across the orogenic. structure, from the roots zone to the Gondwana foreland.. Despite the scarcity (< 5%) of mafic rocks, most pre-300 Ma. plutons are peraluminous biotite granites derived from. dehydration melting of pre-Variscan granitoids and.
CASINI, Leonardo, Puccini A, Cuccuru S, OGGIANO, Giacomo, SECCHI, Francesco   +4 more
openaire   +1 more source

THE LATE VARISCAN FERROAN GRANITE MAGMATISM OF SOUTHERN SARDINIA: INFERENCES FROM Mo METALLOGENESIS

2017
Metallogeny is a powerful tool to investigate crustal evolution; a good example is offered by the Variscan basement of Sardinia and its Mo deposits. Mo ores are poorly represented in Variscan metallogenic provinces of Europe: however, in Sardinia, numerous small Mo deposits, often associated to Sn, W and F ores, are present, invariably related to an ...
Naitza Stefano, Conte Aida Maria, Cuccuru Stefano, Fadda Sandro, Fiori Maddalena, Oggiano Giacomo, Secchi Francesco   +6 more
openaire   +3 more sources

Structural and Magmatic Controls on Late Variscan Metallogenesis: Evidences from Southern Sardinia (Italy)

2015
The late Variscan post-collisional events in Sardinia generate two main types of ore deposits: (1) intrusion hosted/related deposits; (2) "orogenic", structurally-controlled deposits associated with shear zones. The former include Pb-Zn (Ag, Cu), Ni-Co-As-Bi and F-Pb veins, W and Sn veins, Mo greisens, Pb-Zn-Cu skarns; the latter are characterised by ...
Naitza, Stefano, Oggiano, Giacomo, Casini, Leonardo, Cuccuru, Stefano, Secchi, Francesco, Funedda, Antonio, Tocco, Sandro   +6 more
openaire   +2 more sources

P-T path from garnet zoning in pelitic schist from NE Sardinia, Italy: Further constraints on the metamorphic and tectonic evolution of the north Sardinia Variscan belt

Lithos, 2022
Carosi Rodolfo, Chiara Montomoli
exaly  

Petrophysical properties of Variscan mylonitic leucogranite of Monte Grighine, west-central Sardinia

2011
Abstract: Monte Grighini Complex consist of a pile of variscan Nappes and of a suite of granitoid rocks, mostly monzogranite and leucogranite (Musumeci, 1992), that intrudes the tectonic unit of Monte Grighini. Rb/Sr and Ar/Ar radiometric data give, for granitoid rocks, an age of about 305-300 Ma (Carmignani et al., 1987; Laurenzi et al., 1991). A late
COLUMBU, STEFANO, CRUCIANI, GABRIELE, FANCELLO, DARIO, FRANCESCHELLI, MARCELLO, SPANO, MARIA ELENA   +4 more
openaire   +1 more source

A restored section of the “southern Variscan realm” across the Corsica–Sardinia microcontinent

Comptes Rendus - Geoscience, 2009
Giacomo Oggiano
exaly  

Detrital zircons from Variscan Sardinia, Italy: source rocks and early paleozoic paleogeography

2019
A chemical and radiometric study has been carried out on detrital zircons from paragneisses cropping out in the Axial Zone of Variscan NE Sardinia, near to the Lula village, not far from the contact with granodioritic orthogneiss and augen gneiss (Lodé orthogneiss).
Cruciani G, Franceschelli M, Caironi V, Langone A &, Musumeci G   +4 more
openaire   +1 more source