RSCM thermometry in the Alpi Apuane (NW Tuscany, Italy): New constraints for the metamorphic and tectonic history of the inner northern Apennines

Abstract

Highlight:-first RSCM data for the northern Apennines-peak temperature in the Alpi Apuane metamorphic core and surroundings region-new definition of the thermal structure and nappe architecture of the inner northern Apennines

Disproving the Presence of Paleozoic‐Triassic Metamorphic Rocks on the Island of Zannone (Central Italy): Implications for the Early Stages of the Tyrrhenian‐Apennines Tectonic Evolution

“…Tectonics Figure 1), and (iii) Adria-derived continental units (e.g., Jolivet et al, 1998;Molli et al, 2018;Rossetti et al, 1999). The Adria-derived metamorphic complexes, consisting of metamorphic Permian-Triassic siliciclastic deposits and minor Paleozoic basement rocks, are poorly exposed in northwestern Tuscany, from the Apuan Alps to the Monticiano-Roccastrada Ridge and Romani Mounts (e.g., Aldinucci et al, 2008;Brogi & Giorgetti, 2012;Jolivet et al, 1998;Theye et al, 1997;Vai, 2001;Vignaroli et al, 2009;Figure 1), and in the Calabria-Peloritani Arc of southern Italy (e.g., Vai, 2001;Vignaroli et al, 2008;Figure 1).…”

Crystal-Chemistry of Sulfates from the Apuan Alps (Tuscany, Italy). VII. Magnanelliite, K3Fe3+2(SO4)4 (OH)(H2O)2, a New Sulfate from the Monte Arsiccio Mine

“…The main orebodies are hosted within the Apuane Unit and, in particular, in a Paleozoic metavolcanic-metasedimentary sequence, locally tourmalinized, and close to the contact with overlying Triassic metadolostone belonging to the "Grezzoni" Formation. The rocks belonging to the Apuane Unit were metamorphosed up to greenschist facies conditions, with T and P conditions between 350-450 • C and 0.3-0.4 GPa ( [10] and references therein). In addition to magnanelliite, the Monte Arsiccio mine is the type locality for eight mineral species: boscardinite [11], protochabournéite [12], arsiccioite [13], mapiquiroite [14], andreadiniite [15], giacovazzoite [4], scordariite [5], and bianchiniite [8].…”

“…The Fornovolasco ore deposit was the first locality to be studied using modern analytical techniques. Here, Biagioni et al [ 10 ·nH 2 O. The most recent discovery is a sulfate assemblage found at the Monte Arsiccio mine, in which well-crystallized sulfate specimens were recovered, including three new mineral species, i.e., giacovazzoite [4], scordariite [5], and magnanelliite.…”

Crystal Chemistry of Sulfates from the Apuan Alps (Tuscany, Italy). V. Scordariite, K8(Fe3+0.67□0.33)[Fe3+3O(SO4)6(H2O)3]2(H2O)11: A New Metavoltine-Related Mineral

“…The main orebodies are hosted within a Paleozoic metavolcanic-metasedimentary sequence, locally tourmalinized, and close to being in contact with the overlying Triassic metadolostone ("Grezzoni" Formation), belonging to the Apuane Unit. This unit was metamorphosed up to greenschist facies conditions, with T and P conditions between 350-450 • C and 0.3-0.4 GPa (Molli et al [8] and references therein).…”