Geology of late-Variscan Sàrrabus pluton (southeastern Sardinia, Italy
| Autor: | F. Secchi a, c, S. Naitza b, G. Oggiano a, S. Cuccuru a, A. Puccini a, A. M. Conte d, T. Giovanardi e, M. Mazzucchelli e |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Journal of maps (Stud. ed.) 17 (2021). doi:10.1016/j.margeo.2020.106372 info:cnr-pdr/source/autori:F. Secchi a,c, S. Naitza b,c, G. Oggiano a, S. Cuccuru a, A. Puccini a, A. M. Conte d, T. Giovanardi e, M. Mazzucchelli e/titolo:Geology of late-Variscan Sàrrabus pluton (southeastern Sardinia, Italy/doi:10.1016%2Fj.margeo.2020.106372/rivista:Journal of maps (Stud. ed.)/anno:2021/pagina_da:/pagina_a:/intervallo_pagine:/volume:17 |
| Popis: | his paper deals with the geological mapping of the late-Variscan Sàrrabus pluton, (southeastern Sardinia), a shallow multiple and composite igneous complex dominated by several generations of granodiorites, metaluminous and peraluminous granites and repeated pulses of mantle-derived mafic magmas. The map has been compiled based on geological surveys at 1:10,000 and 1:5,000 scales, assisted by in situ gamma-ray spectrometry and detailed petrographic investigations. Granite-related ore deposits have been also reported. The emplacement age of the pluton can be constrained by U/Pb dating on zircons of Cala Regina granodiorite, yielding an age of 286 ± 9 Ma. The resulting scenario documents a bimodal magmatism controlled by an EW trending shear zone, f |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|