Structural and geomorphological framework of the upper Maira Valley (Western Alps, Italy): the case study of the Gollone Landslide
| Autor: | G. Moletta, F. Caso, A. Petroccia, D. Bormioli, M. Bonasera, Michele Morelli, S. Nerone |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
lcsh:Maps
010504 meteorology & atmospheric sciences Scale (ratio) Geography Planning and Development Landslide geomorphology 010502 geochemistry & geophysics Geologic map 01 natural sciences gis structural survey landslide hazard lcsh:G3180-9980 Earth and Planetary Sciences (miscellaneous) geological mapping Geomorphology Geology 0105 earth and related environmental sciences GIS Structural survey |
| Zdroj: | Journal of Maps, Vol 16, Iss 2, Pp 534-542 (2020) |
| ISSN: | 1744-5647 |
| Popis: | An interdisciplinary study has been adopted to investigate the upper Maira Valley (Western Alps, Italy). A geological map of an unmapped area, of about 12 km2, at scale 1:10.000, has been realized. The combination of field surveys, GIS database creation, aerial photo observation, local archival data consultation, geo-structural analysis and drillholes re-interpretation outlined a relationship between structures and landforms. A ductile and brittle deformation history with the definition of four discontinuity systems (F1-F4) has been detected. Where the fracturation is intense, rock-falls and topplings are triggered. In area associated with a homogeneous presence of weathered cover, debris flows were identified. The geo-structural pattern obtained from the surveys in the upper Maira Valley allowed characterizing detachment zones of the slope overlooking Acceglio town. The Gollone Landslide is an excellent case study to unravel the structural-morphological interaction and the kinematic evolution due to its framework. |
| Databáze: | OpenAIRE |
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