This paper deals with the geological mapping of the late-Variscan Sarrabus pluton, (south-eastern 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, followed by the shallower emplacement of several pulses of independent granite magmas.

Geology of late-Variscan Sàrrabus pluton (south-eastern Sardinia, Italy) / Secchi, F.; Naitza, S.; Oggiano, G.; Cuccuru, S.; Puccini, A.; Conte, A. M.; Giovanardi, T.; Mazzucchelli, M.. - 17:(2021), pp. 591-606. [10.1080/17445647.2021.1982032]

Geology of late-Variscan Sàrrabus pluton (south-eastern Sardinia, Italy)

Secchi F.;Oggiano G.;Cuccuru S.;Puccini A.;
2021-01-01

Abstract

This paper deals with the geological mapping of the late-Variscan Sarrabus pluton, (south-eastern 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, followed by the shallower emplacement of several pulses of independent granite magmas.
2021
Geology of late-Variscan Sàrrabus pluton (south-eastern Sardinia, Italy) / Secchi, F.; Naitza, S.; Oggiano, G.; Cuccuru, S.; Puccini, A.; Conte, A. M.; Giovanardi, T.; Mazzucchelli, M.. - 17:(2021), pp. 591-606. [10.1080/17445647.2021.1982032]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11388/302862
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