The outer zones of the central Apennines are charac- terized by arcuate thrusts and related NE-verging folds that affect at least 2000 m thick Mesozoic-Neogene sedi- mentary succession (LAVECCHIA, 1981; GHISETTI & VEZ- ZANI, 1990). The base of the succession is represented by a massive 800 m thick carbonate platform unit of Early Liassic age (Calcare Massiccio Fm.), that grades upwards into well-bedded pelagic carbonates, marls and silicicla- stics. The Jurassic portion of the succession displays thickness and facies variations, that are controlled by syn- sedimentary normal faults: these dismembered the Early Liassic carbonate platform into differently subsiding sea- mounts and troughs. The subsequent onset of Neogene orogenic deformation was responsible for the contraction of the sedimentary succession. A detailed analysis of some anticlines reveals the oc- currence of high-angle thrusts within the Calcare Massic- cio Fm., whose displacements are accommodated by fol- ding within the overlying pelagic succession.
Calamita, F., Esestime, P., Paltrinieri, W., Satolli, S., Scisciani, V., Tavarnelli, E., et al. (2007). The role of Adria paleomargin architecture on the geometry and kinematics of the Central-Southern Apennine during the Neogene-Quaternary evolution. RENDICONTI DELLA SOCIETÀ GEOLOGICA ITALIANA, 5, 93-94.
The role of Adria paleomargin architecture on the geometry and kinematics of the Central-Southern Apennine during the Neogene-Quaternary evolution
TAVARNELLI, E.;
2007-01-01
Abstract
The outer zones of the central Apennines are charac- terized by arcuate thrusts and related NE-verging folds that affect at least 2000 m thick Mesozoic-Neogene sedi- mentary succession (LAVECCHIA, 1981; GHISETTI & VEZ- ZANI, 1990). The base of the succession is represented by a massive 800 m thick carbonate platform unit of Early Liassic age (Calcare Massiccio Fm.), that grades upwards into well-bedded pelagic carbonates, marls and silicicla- stics. The Jurassic portion of the succession displays thickness and facies variations, that are controlled by syn- sedimentary normal faults: these dismembered the Early Liassic carbonate platform into differently subsiding sea- mounts and troughs. The subsequent onset of Neogene orogenic deformation was responsible for the contraction of the sedimentary succession. A detailed analysis of some anticlines reveals the oc- currence of high-angle thrusts within the Calcare Massic- cio Fm., whose displacements are accommodated by fol- ding within the overlying pelagic succession.File | Dimensione | Formato | |
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https://hdl.handle.net/11365/398916