Geological researches carried out near the Castagnone hamlet in the Cerrina valley (northern Monferrato Hills, Piedmont, NW Italy), have brought to light a post-Messinian succerssion whose sedimentary records start with a Lower Complex of pedogenized colluvial material and with two superimposed Alluvial Units. The lower one contains a Galerian macrofaunas associated with microtine vole teeth (Mimomys savini, Mimomys pusillus, Ungaromys cf. U. nanus, Microtus (Allophaiomys) sp.), while the upper one yields only scarce faunal remains. Most of the sediments were deposited during a normal palaeomagnetic phase of which the I Alluvial Unit must be referred to the Jaramillo sunchron. The II Alluvial Unit, being both unconformable with and younger than the first one, might be best referable to the Brunhes Chron.
The Castagnone site (Cerrina valley, Monferrato hills, NW Italy): early Pleistocene sedimentary record and biochronology
SALA, Benedetto;
2003
Abstract
Geological researches carried out near the Castagnone hamlet in the Cerrina valley (northern Monferrato Hills, Piedmont, NW Italy), have brought to light a post-Messinian succerssion whose sedimentary records start with a Lower Complex of pedogenized colluvial material and with two superimposed Alluvial Units. The lower one contains a Galerian macrofaunas associated with microtine vole teeth (Mimomys savini, Mimomys pusillus, Ungaromys cf. U. nanus, Microtus (Allophaiomys) sp.), while the upper one yields only scarce faunal remains. Most of the sediments were deposited during a normal palaeomagnetic phase of which the I Alluvial Unit must be referred to the Jaramillo sunchron. The II Alluvial Unit, being both unconformable with and younger than the first one, might be best referable to the Brunhes Chron.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
