The 1:10,000 geological map of the San Colombano hill covers 60 km 2 in the Po Plain, south of Milan. The new and the historical surface geological data-sets are managed by a GeoDB aiming to contribute to re-interpret the Quaternary evolution at the Po Plain-Northern Apennine border. On the hill, the Calabrian shallow marine San Colombano Fm. unconformably overlies the truncated deeper-marine Miocene formations, up-thrusted by the external fronts of the Apennine Emilian Arc during Mio-Pliocene. Late Pleistocene alluvial units rest in unconformity above the marine succession both on the uplifted hilltop and on the surrounding plain. Fault-related offset of Late Pleistocene units, stratigraphic and morpho- structural evidences (facets, relic surfaces and drainage patterns), document the Quaternary tectonic history. Early to Middle Pleistocene ongoing thrust-folding at the northernmost buried reaches of the Emilian Arc was followed by Latest Pleistocene-Holocene transtension, possibly relating to the NNE striking Pavia-Casteggio lateral ramp.

Geology of the San Colombano hill, a Quaternary isolated tectonic relief in the Po Plain of Lombardy (Italy) / C. Zuffetti, R. Bersezio, D. Contini, M.R. Petrizzo. - In: JOURNAL OF MAPS. - ISSN 1744-5647. - 14:2(2018 Mar 27), pp. 199-211. [10.1080/17445647.2018.1443166]

Geology of the San Colombano hill, a Quaternary isolated tectonic relief in the Po Plain of Lombardy (Italy)

C. Zuffetti
Primo
;
R. Bersezio;M.R. Petrizzo
2018

Abstract

The 1:10,000 geological map of the San Colombano hill covers 60 km 2 in the Po Plain, south of Milan. The new and the historical surface geological data-sets are managed by a GeoDB aiming to contribute to re-interpret the Quaternary evolution at the Po Plain-Northern Apennine border. On the hill, the Calabrian shallow marine San Colombano Fm. unconformably overlies the truncated deeper-marine Miocene formations, up-thrusted by the external fronts of the Apennine Emilian Arc during Mio-Pliocene. Late Pleistocene alluvial units rest in unconformity above the marine succession both on the uplifted hilltop and on the surrounding plain. Fault-related offset of Late Pleistocene units, stratigraphic and morpho- structural evidences (facets, relic surfaces and drainage patterns), document the Quaternary tectonic history. Early to Middle Pleistocene ongoing thrust-folding at the northernmost buried reaches of the Emilian Arc was followed by Latest Pleistocene-Holocene transtension, possibly relating to the NNE striking Pavia-Casteggio lateral ramp.
geological map; Lombardy; Northern Apennines; Po Plain; Quaternary; San Colombano hill
Settore GEO/02 - Geologia Stratigrafica e Sedimentologica
Settore GEO/04 - Geografia Fisica e Geomorfologia
27-mar-2018
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/566930
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