کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6447048 1641128 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Applying geophysical techniques to investigate a segment of a creeping fault in the urban area of San Gregorio di Catania, southern flank of Mt. Etna (Sicily - Italy)
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فیزیک زمین (ژئو فیزیک)
پیش نمایش صفحه اول مقاله
Applying geophysical techniques to investigate a segment of a creeping fault in the urban area of San Gregorio di Catania, southern flank of Mt. Etna (Sicily - Italy)
چکیده انگلیسی
In an especially built-up area, such as the lower slopes of Etna volcano, the effects of surface faulting, caused by coseismic ruptures and aseismic creep, contribute significantly to increase the risk to towns and villages and their related infrastructure. This study aims to couple the geophysical and structural characteristics of an active fault zone, joining surficial and deep information, in the area of San Gregorio di Catania (Sicily - Italy). The occurrence of this structure and its associated fracture field were related to variations in the physical and mechanical properties of the hosting rocks. Surface structural survey detected a fracture zone with maximum width of 40 m, characterized with fractures oriented consistently with the kinematics of the fault. The geophysical surveys (ground penetrating radar, seismic tomography, and refraction microtremor), enabled to detect highly fractured rock volumes at variable depth whose occurrence has been linked to the presence of the fault at surface. The integration of various techniques, with different spatial resolution and depth range, allowed to fully reconstruct the 3D geological structure of the site down to about 15 m.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Applied Geophysics - Volume 123, December 2015, Pages 153-163
نویسندگان
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