Search results for "Sicily (Italy)"

showing 3 items of 3 documents

Origin of clay minerals in soils on pyroclastic deposits in the island of Lipari (Italy)

2005

The island of Lipari (Italy) is characterized by calc-alkaline to potassic volcanism and a Mediterranean-type climate. The mineralogical and chemical features of two different soil profiles with ages of 92,000 and 10,000–40,000 y, respectively, have been investigated. There were no Andisols, but Vitric and Vertic Cambisols have developed at both sites. Although the morphology of the soils was similar, remarkable differences in the clay mineralogy between the two sites were observed. The site with the Vitric Cambisol was associated with the weathering sequence: glass → halloysite → kaolinite or interstratified kaolinite-2:1 clay minerals. Both sites had smectite in the clay fraction and, to …

CambisolGeochemistrySoil ScienceMineralogyWeatheringAndisols geochemistry montmorillonite glasses kaolinite sheet silicates Italy Cambisols clay mineralogy Europe silicates soils halloysite Lipari Islands clay minerals igneous rocks Lipari Island smectite metasomatism weathering Sicily Italy volcanic rocks Southern Europeengineering.materialHalloysitechemistry.chemical_compoundMontmorillonitechemistrySettore AGR/14 - PedologiaGeochemistry and PetrologySoil waterEarth and Planetary Sciences (miscellaneous)engineeringSoil horizonKaoliniteClay mineralsGeologyWater Science and Technologyclays and clay minerals
researchProduct

GPS Monitoring of the Scopello (Sicily, Italy) DGSD Phenomenon: Relationships Between Surficial and Deep-Seated Morphodynamics

2015

The Scopello area, which is located along the north-western Tyrrhenian coastal sector of the Sicilian chain (Italy), is widely affected by Deep-seated Gravitational Slope Deformation (DGSD) phenomena, which are mainly the result of a geomorphologic setting marked by the outcropping of an overthrust plan, limiting a brittle fractured carbonate slab, laid onto a ductile marly-clayey substratum. Due to the very advanced stage of the deformation phenomena, a coupled morphodynamic style has established between shallow landslides and DGSD phenomena, affecting the exhumed ductile substratum and the overlaying rigid dismantled slab, respectively. A GPS network was realized for monitoring the Scopel…

Deformation (mechanics)business.industrySettore GEO/04 - Geografia Fisica E GeomorfologiaLandslideDGSD phenomena GPS monitoring large-scale landslide Scopello (Sicily Italy)DebrisHead (geology)GeographyAssisted GPSGlobal Positioning SystemSlabbusinessSettore GEO/05 - Geologia ApplicataBeach morphodynamicsSeismology
researchProduct

Deep-seated gravitational slope deformations in western Sicily: Controlling factors, triggering mechanisms, and morphoevolutionary models

2014

Abstract A study of deep-seated gravitational slope deformation (DSGSD) phenomena affecting areas of various geological and geomorphological settings in western Sicily is described. Western Sicily is underlain by a thin-skinned imbricate wedge of Meso–Cenozoic carbonate and siliciclastic rocks that formed by the stacking of several thrust nappes over the Iblean foreland. Locally, the original thrust sheets are folded and cut by high-angle faults. Large areas of western Sicily now display high relief energy due to Plio-Pleistocene block-faulting and uplifting, and the Quaternary morphogenetic phases are characterised by incision, thereby triggering widespread DSGSDs. To identify controlling …

Settore GEO/04 - Geografia Fisica E GeomorfologiaThrustNappechemistry.chemical_compoundchemistryMarlCarbonate rockCarbonateDeep-seated gravitational slope deformation Controlling factor Triggering cause Morphoevolutionary model Western Sicily ItalySiliciclasticPetrologyQuaternaryForeland basinSeismologyGeologyEarth-Surface Processes
researchProduct