Risultati preliminari delle ricerche geomorfologiche e glaciologiche svolte nella seconda spedizione del P.N.R.A
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...
| Main Authors: | , |
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| Other Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | Italian |
| Published: |
1988
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| Subjects: | |
| Online Access: | http://hdl.handle.net/11568/14667 |
| Summary: | 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. |
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