Glacial-geologicql observations have been carried on at Terra Nova Bay. Evidences of at least four glaciations have been observed: the oldest two are referred to the pre-Pleistocene. AI/long the coeste! belt the youngest glacial drift contains fragments of marine shells, supporting the hypothesis of the expansion of a grounded Ross Ice Shelf. Holocene glacier fluctuations have been studied and two minor neoglacial advances have been observed. Near Edmonson Point a glacier advance has been dated to about 1000 years BP . 14C ages have been obtained for Holocene raised beaches, ranging from 5770 + 60 to the present. A rate of 3 mm1year can be preliminarly estimated for the isostatic uplift during the last 4500 years. A geomorphological map at a scale 1:10.000 has been produced for the area surrounding the Italian station.
|Autori:||BARONI C; OROMBELLI G|
|Titolo:||Risultati preliminari delle ricerche geomorfologiche e glaciologiche svolte nella seconda spedizione del P.N.R.A|
|Anno del prodotto:||1988|
|Appare nelle tipologie:||1.1 Articolo in rivista|