The DEM or Mt. Etna: geomorphological and structural implications |
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Authors: | Massimiliano Favalli Fabrizio Innocenti Maria Teresa Pareschi Giorgio Pasquarè Stefano Branca |
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Institution: | 1. CNR-CSGSDA, Via S.Maria 53, 56126 Pisa, Italy;2. Dipartimento di Scienze della Terra, Università di Pisa, Via S.Maria 53, 56126 Pisa, Italy;3. Dipartimento di Scienze della Terra, Università di Milano, Via Mangiagalli 34, 20133 Milano, Italy;4. Istituto di Geologia e Geofisica, Università di Catania, Corso Italia 55, 95129 Catania, Italy |
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Abstract: | AbstractA Digital Elevation Model (DEM) of Mt. Etna is presented; it has altimetric and planimetric resolution of 1 m and 5 m, respectively, and covers an area of about 120 km . This 3-D view of Mt. Etna allowed both recognition and location of the main morphostructural and volcano-tectonic features of the volcano. A slope map has been generated from the DEM; on the basis of slope distributions and surface textures, five acclivity domains have been recognized. The largest domain, south of the summit craters, reflects the occurrence of old plateau lavas, distinct from central volcanoes which built the present Etnean volcanic system. Interaction between the central volcanoes, with their summit calderas and failed slopes, produced the other recognised domains. Furthermore, newly identified relevant morphostructural lines are discussed. © Elsevier, Paris |
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Keywords: | Mt Etna DEM volcanology morphostructure |
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