The extent of Pleistocene glaciations in the western part of the Campo Imperatore (Gran Sasso Massif, Central Italy)

• Autorzy: Bisci C. , Gentili B. , Ciccacci S. , Dramis F. , Kotarba A.
• Języki publikacji: EN

Abstrakty

EN

The Campo Imperatore is a virtually undrained tectonic depression located in the inner part of the Gran Sasso Massif, the highest relief within the Apennines (2,912 m a.s.l. at Corno Grande). This paper reports some major géomorphologie features of the western part of this depression, which   represents a specific and very fine example of glaciated mountain landscape, where landforms typical of glacial erosion are commonplace over l ,800 m a.s.l. Most of the glacial cirques are characterized by karstified bedrock topography, in places covered with thin drift deposits. Distinct recessional moraines are also present at various altitudes (i.e. around 2,250; 2,180; 2,000 and 1,740 m a.s.l). However, the most typical landforms on the floor of the main depression are those due to glacial deposition. There, at altitudes ranging around 1,640—1,590 m a.s.l., stagnant ice déglaciation patterns dominate in the form of a wide lobate moraine system which rises 25—30 m above an outwash plain covered by glaciofluvial, lacustrine and alluvial deposits. Within the latter, small (less than 10 m high) hills, comprising glacial drift, protrude from the flat valley floor. The remnants of these strongly degraded, transformed and laterally-eroded moraines denote the maximum extent of an older glaciation, some 1.5 km remote from the main system.

Słowa kluczowe

EN

glacial morphology; stagnant ice topography; Pleistocene glaciations; Central Apennines

• Wydawca: Stowarzyszenie Geomorfologów Polskich
• Czasopismo: Landform Analysis
• Rocznik: 1999
• Tom: Vol. 2
• Strony: 37--43
• Opis fizyczny: Bibliogr. 34 poz., rys.

Twórcy

autor

Bisci C.

• Department of Earth Sciences, University of Camerino,via Gentile III da Varano, Camerino 1-62032, Italy

autor

Gentili B.

• Department of Earth Sciences, University of Camerino,via Gentile III da Varano, Camerino 1-62032, Italy

autor

Ciccacci S.

• Department of Earth Sciences, University "La Sapienza", p. A. Mora, 1-001, Rome, Italy 

autor

Dramis F.

• Department of Geological Sciences, Third University of Rome, Largo San Leonardo Murialdo 1, 1-00146 Romejtaly

autor

Kotarba A.

• Department of Geomorphology and Hydrology, Polish Academy of Sciences, ul. sw. Jana 22, P-31018 Krakow, Poland