The Permian succession of the Tione Basin (Val Rendena, Trento) includes the Collio Formation, a volcanic pile of rhyodacitic composition and the overlying Arenarie di Val Gardena Formation. Major and trace elements geochemistry of the volcanic rocks shows a calc-alkaline affinity and significant analogies with the coeval lavas and ignimbrites of the Monte Luco volcanic succession. Artinskian to Kungurian palynostratigraphic age of the Collio Formation from the Val Rendena matches the Kungurian to Ufmmian age (260-255 Ma) of the Tregiovo Formation from the Monte Luco sequence and the radiometric age of the Permian volcanites of Lugano. The Collio Formation appears to be younger than the Atesina Permian Volcanic Sequence. -Authors
Bargossi G.M., Di Battistini G., Gasparotto G., Vercesi P.L., Gualtieri S. (1993). The Permian volcano-sedimentary sequence of the Tione Basin (Val Rendena, Trento, N Italy). MINERALOGICA ET PETROGRAPHICA ACTA, 36, 19-33.
The Permian volcano-sedimentary sequence of the Tione Basin (Val Rendena, Trento, N Italy)
Bargossi G. M.;Gasparotto G.;
1993
Abstract
The Permian succession of the Tione Basin (Val Rendena, Trento) includes the Collio Formation, a volcanic pile of rhyodacitic composition and the overlying Arenarie di Val Gardena Formation. Major and trace elements geochemistry of the volcanic rocks shows a calc-alkaline affinity and significant analogies with the coeval lavas and ignimbrites of the Monte Luco volcanic succession. Artinskian to Kungurian palynostratigraphic age of the Collio Formation from the Val Rendena matches the Kungurian to Ufmmian age (260-255 Ma) of the Tregiovo Formation from the Monte Luco sequence and the radiometric age of the Permian volcanites of Lugano. The Collio Formation appears to be younger than the Atesina Permian Volcanic Sequence. -AuthorsI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
