期刊
JOURNAL OF MAPS
卷 17, 期 2, 页码 594-607出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/17445647.2021.1986157
关键词
Deep-seated gravitational slope deformation; tectonic geomorphology; morphostratigraphy; geomorphological mapping; rock avalanche; UAV
This study presents for the first time the kinematic models and geomorphological evolution of deep-seated gravitational slope deformations (DSGSDs) in central Sardinia, highlighting the major controlling factors of DSGSDs, including the geo-structural setting and high relief energy associated with recent upliftment.
In this study, we analyse deep-seated gravitational slope deformations (DSGSDs) in central Sardinia. The area is characterised by plateaus with a prominent limestone scarp overlying metamorphites. A comprehensive mapping of structural, karst, fluvial, and slope morphologies in Pardu and Ulassai valleys is presented herein. The uplift linked to the Plio-Pleistocene tectonic activity leads to high-slope topography, which favours gravitational processes, such as DSGSDs and rock-avalanches. Although DSGSD is a common phenomenon in the relief of the central Mediterranean region, it has never been studied in Sardinia. We describe the kinematic models and geomorphological evolution of DSGSD in Sardinia for the first time. The application of light detection and ranging, high-resolution unmanned aerial vehicle photogrammetry, and geological, structural, and geomorphological surveys enabled a depth morphometric analysis and the development of interpretative three-dimensional models. The geo-structural setting and high relief energy associated with recent upliftment are the major controlling factors of DSGSDs.
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