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GONDWANA 15
North meets South
NORTH
mee
ts
NDWANA 15
O
G
SOUTH
MADRID 2014
ABSTRACTS
BOOK
14-18 July 2014, Madrid
(Spain)
GONDWANA 15
North meets South
Madrid (Spain)
14-18 July, 2014
COORDINATORS
César Casquet
Universidad Complutense de Madrid
Instituto de Geociencias (CSIC-UCM), SPAIN
Juan Carlos Gutiérrez-Marco
Instituto de Geociencias (CSIC-UCM), SPAIN
Javier Fernández-Suárez
Universidad Complutense de Madrid
Instituto de Geociencias (CSIC-UCM), SPAIN
EDITORS
Robert J. Pankhurst (BGS, UK)
Pedro Castiñeiras (UCM, SPAIN)
Sonia Sánchez Martínez (UCM, SPAIN)
Meeting venue
Superior Technical School of Mines
i
Gondwana15
Stratigraphic update of the Paleozoic succession of the
Peloritani Mountains, north-eastern Sicily, southern Italy
P. Navas-Parejo1,2, R. Rodríguez-Cañero2, R. Somma3,
A. Martín-Algarra2 and V. Perrone4
Estación Regional del Noroeste, Instituto de Geología UNAM, Apartado Postal 1039, 83240 Hermosillo, Mexico.
Departamento de Estratigrafía y Paleontología, Universidad de Granada, 18071 Granada, Spain.
3
Dipartimento di Scienze dell’Ambiente, della Sicurezza, del Territorio, degli Alimenti e della Salute (S.A.S.T.A.S.),
Università di Messina, Sant’Agata, 98166 Messina, Italy.
4
Dipartimento di Scienze della Terra, della Vita e dell’Ambiente, Università di Urbino, 61029 Urbino, Italy.
1
2
Rodríguez-Cañero, R., Navas-Parejo, P., Somma, R., Martín-Algarra, A., Perrone, V., 2013. First finding of upper
Silurian and Lower Devonian conodonts from the Peloritani Mountains (NE Sicily, southern Italy). Bollettino della
Società Paleontologica Italiana 52, 1-9.
Somma, R., Navas-Parejo, P., Martín-Algarra, A., Rodríguez-Cañero, R., Perrone, V., Martínez-Pérez, C., 2013.
Paleozoic stratigraphy of the Longi-Taormina Unit (Peloritanian Mountains, southern Italy). Stratigraphy 10,
1-26.
Project CGL2012-32179 and Research group RNM-208 (JA)
119
North meets South
Lithostratigraphic analyses on the mildly metamorphosed Paleozoic succession of the LongiTaormina Unit (Peloritani Mountains, north-eastern Sicily) have been integrated with conodont
biostratigraphic data, providing new constraints on the stratigraphy of the Calabria-Peloritani
terrane of southern Italy.
The studied succession consists, from base to top, of the following formations:
- Castelmola Formation of siliciclastic deposits including calc-alkaline volcanites (porphyroids),
determined as early Silurian by U-Pb SHRIMP dating of zircon (see Martín-Algarra et al., this
symposium);
- Lower Pizzo Leo Formation (Silurian) composed of siliciclastic deposits with alkaline volcanic
rocks (metabasites) and lenses of nodular limestone in the upper part;
- Upper Pizzo Leo Formation (upper Silurian–Lower Devonian) formed by calc-schists, metamarls,
and meta-limestones with minor metapelites.
The oldest and youngest conodont associations are found within the carbonates of the Upper
Pizzo Leo Formation and point to late Silurian and Early Devonian ages, respectively. The
oldest, obtained from nodular limestones, belong to the Ludlow (ploeckensis - siluricus zones;
Rodríguez-Cañero et al., 2013). The youngest fauna, found in calc-schists, belong to the Emsian
(kitabicus, excavatus, and nothoperbonus-inversus zones; Somma et al., 2013). The existence of younger
Devonian beds reported in previous studies could not be confirmed.
The stratigraphic succession of the Longi-Taormina Unit ends with lower Carboniferous (?)
lydites topped by Carboniferous ?Culm-like siliciclastic rocks.
From the environmental point of view, a sharp transition from siliciclastic to carbonate
facies occurred during the late Silurian, within a general upwards-deepening trend from the
Ordovician(?)–Silurian to the early Carboniferous.
The studied Paleozoic succession, being analogous to others better known in Calabria (Stilo
Unit), SW Sardinia, the Carnic Alps, the Betic-Rif cordillera, and eastern Pyrenees, presumably
formed near the western end of Paleotethys and in its northern margin.