Susceptibilidad a la licuación de suelos y sedimentos en el valle Ullum-Zonda (31º30’ S-68º25’ O), Precordillera, Andes Centrales, Argentina
نویسندگان
چکیده
. The earthquakes of 1894, 1944, 1952 and 1977 occurred in the province San Juan central-wesern Argentina caused numerous processes soils sediment liquefaction, including those Ullum-Zonda valley. Historical records showed cracks, sand volcanoes, craters differential settlements, which significant damage to housing agro-industrial sector region. In this work, we carried out a study susceptibility liquefaction sedimentary deposits This was conducted using methodology conditioning factors such as depth water table, historical potential seismogenic sources, origin, age grain size deposits, among others, were evaluated weighted. An iterative process overlapping maps weighted influence different assessment susceptibility. Once optimal combination achieved, final map with zoning obtained for Ulum-Zonda Valley. achieved related index (SI), qualitatively classified very high, moderate low. zone high is located distal portion alluvial fan formed by River Valley, areas middle fan, low correspond proximal-middle fan. main villages valley, Ibáñez (head Ullum department) north River, Basilio Nievas Zonda department), south river, Tacú residential (located dam) yacht clubs on northeast periphery are susceptibility, where soil sediments granulometry phreatic level.
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ژورنال
عنوان ژورنال: Andean Geology
سال: 2021
ISSN: ['0718-7106', '0718-7092']
DOI: https://doi.org/10.5027/andgeov48n2-3331