A5 – Lacustrine deposits of the late Piacenzian-Gelasian
L’Aquila intermontane basin (Central Italy)

Leaders

Domenico Cosentino, University of Roma Tre, Italy
Biagio Giaccio, CNR-IGAG, Italy
Elsa Gliozzi, University of Roma Tre, Italy
Marco Nocentini, CNR-IGAG, Italy
Giorgio Pipponzi, USRC-L’Aquila, Italy
Marco Spadi, University of L’Aquila, Italy
Marco Tallini, University of L’Aquila, Italy

Contact person: domenico.cosentino@uniroma3.it, elsa.gliozzi@uniroma3.it

Type: Pre-Meeting
Duration: 2 days
Cost: € 180,00
Start: Rome (8th September 2019 – early morning)
End: Rome (9th September 2019 – early evening)
Difficulty level: Low
Participants: min 14 max 24

 A5 - Lacustrine deposits of the late Piacenzian-Gelasian L’Aquila intermontane basin (Central Italy) | Pre-meeting Trips | IAS 2019 Rome
Deep lacustrine sediments with tephra layers (San Nicandro Fm.)

The field trip will visit the lacustrine deposits of one of the oldest intermontane basins of Central Italy: the tectonically active L’Aquila Basin. This sedimentary basin developed during the late Piacenzian-Gelasian syn-rift stage that affected Central Italy in a post-orogenic tectonic phase. Deep lacustrine deposits, consisting of massive and/or thinly laminated white calcareous silt (Limi di San Nicandro Auct.) with tephra layers, characterize the stratigraphic succession of this intermontane basin. A four Caspiocypris species-flock (Ostracoda), together with sponge spicules and molluscs, define the fossil content of the lacustrine deposits of L’Aquila Basin. A shallowing upward trend is recognizable in the lacustrine deposits that crop out in the Poggio Picenze-Castelnuovo area. In the L’Aquila Basin, a complete facies tract from deep lacustrine facies (e.g., San Nicandro Fm) to subaerial slope deposits (e.g., Valle Valiano Fm), through well-developed delta and coastal facies (e.g., Petogna and Bominaco), defines the late Piacenzian-Gelasian sedimentary succession of this ancient lacustrine basin.

Itinerary

Rome, L’Aquila, Poggio Picenze, San Nicandro, Castelnuovo, Bominaco, Rome (minibus)

Technical Information

The field-trip will take place at altitudes from 600 to 950 m a.s.l. In early September, the weather is expected to be warm and sunny (13-25°C), but it is anyway advised to bring either sunscreen and raincoat, in addition to wearing appropriate clothing and shoes. Stops are roadside or, in a few cases, accessible by low difficulty walks.