Neogene-quaternary seismic stratigraphy of the llancanelo lake basin, Mendoza, Argentina

A new shallow multichannel seismic survey was carried out in the Llancanelo Lake region (Southern Mendoza Province, Argentina), in order to complete and extend previously surveyed seismic sections. The new seismic data allowed to double the already existing data. The obtained information was correla...

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Autores principales: Onnis, L., Violante, R.A., Osella, A., De La Vega, M., Tassone, A., López, E.
Formato: JOUR
Materias:
Llancanelo
Neogene-Quaternary
Seismic stratigraphy
Shallow seismic
depocenter
Neogene
sedimentary sequence
seismic data
seismic stratigraphy
seismic survey
tectonic evolution
Andes
Argentina
Mendoza
Lonchocarpus glaucifolius
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_07187092_v45_n1_p35_Onnis
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_07187092_v45_n1_p35_Onnis
record_format dspace
spelling todo:paper_07187092_v45_n1_p35_Onnis2023-10-03T15:36:46Z Neogene-quaternary seismic stratigraphy of the llancanelo lake basin, Mendoza, Argentina Onnis, L. Violante, R.A. Osella, A. De La Vega, M. Tassone, A. López, E. Llancanelo Neogene-Quaternary Seismic stratigraphy Shallow seismic depocenter Neogene sedimentary sequence seismic data seismic stratigraphy seismic survey tectonic evolution Andes Argentina Mendoza Lonchocarpus glaucifolius A new shallow multichannel seismic survey was carried out in the Llancanelo Lake region (Southern Mendoza Province, Argentina), in order to complete and extend previously surveyed seismic sections. The new seismic data allowed to double the already existing data. The obtained information was correlated with seismic and stratigraphic data from the industry. In this way it was possible to depict the major Neogene-Quaternary sedimentary-volcanic sequences and the regional evolution of a tectonic-volcanic basin located in a key region at the eastern foot of the Andes cordillera. This research is settled on early studies that comprised seismic works reaching depths of 600-700 m as well as geoelectric and electromagnetic surveys reaching the uppermost 80-100 m of the sequences. The obtained results indicate the presence of three major sedimentary units separated by conspicuous seismic horizons SR1, SR2 and SR3, respectively considered as representing the late Mesozoic transition from marine to continental deposition, the beginning of the Cenozoic basaltic volcanism, and the change from dominantly sedimentary to dominantly volcanic processes at the base of the Quaternary. The resulting stratigraphic scheme reveals increasing volcanic (basaltic layers) intercalations with depth that accommodate to the geometry of the depocenter. © 2018, Servicio Nacional de Geologia y Mineria. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_07187092_v45_n1_p35_Onnis
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Llancanelo
Neogene-Quaternary
Seismic stratigraphy
Shallow seismic
depocenter
Neogene
sedimentary sequence
seismic data
seismic stratigraphy
seismic survey
tectonic evolution
Andes
Argentina
Mendoza
Lonchocarpus glaucifolius
spellingShingle Llancanelo
Neogene-Quaternary
Seismic stratigraphy
Shallow seismic
depocenter
Neogene
sedimentary sequence
seismic data
seismic stratigraphy
seismic survey
tectonic evolution
Andes
Argentina
Mendoza
Lonchocarpus glaucifolius
Onnis, L.
Violante, R.A.
Osella, A.
De La Vega, M.
Tassone, A.
López, E.
Neogene-quaternary seismic stratigraphy of the llancanelo lake basin, Mendoza, Argentina
topic_facet Llancanelo
Neogene-Quaternary
Seismic stratigraphy
Shallow seismic
depocenter
Neogene
sedimentary sequence
seismic data
seismic stratigraphy
seismic survey
tectonic evolution
Andes
Argentina
Mendoza
Lonchocarpus glaucifolius
description A new shallow multichannel seismic survey was carried out in the Llancanelo Lake region (Southern Mendoza Province, Argentina), in order to complete and extend previously surveyed seismic sections. The new seismic data allowed to double the already existing data. The obtained information was correlated with seismic and stratigraphic data from the industry. In this way it was possible to depict the major Neogene-Quaternary sedimentary-volcanic sequences and the regional evolution of a tectonic-volcanic basin located in a key region at the eastern foot of the Andes cordillera. This research is settled on early studies that comprised seismic works reaching depths of 600-700 m as well as geoelectric and electromagnetic surveys reaching the uppermost 80-100 m of the sequences. The obtained results indicate the presence of three major sedimentary units separated by conspicuous seismic horizons SR1, SR2 and SR3, respectively considered as representing the late Mesozoic transition from marine to continental deposition, the beginning of the Cenozoic basaltic volcanism, and the change from dominantly sedimentary to dominantly volcanic processes at the base of the Quaternary. The resulting stratigraphic scheme reveals increasing volcanic (basaltic layers) intercalations with depth that accommodate to the geometry of the depocenter. © 2018, Servicio Nacional de Geologia y Mineria. All rights reserved.
format JOUR
author Onnis, L.
Violante, R.A.
Osella, A.
De La Vega, M.
Tassone, A.
López, E.
author_facet Onnis, L.
Violante, R.A.
Osella, A.
De La Vega, M.
Tassone, A.
López, E.
author_sort Onnis, L.
title Neogene-quaternary seismic stratigraphy of the llancanelo lake basin, Mendoza, Argentina
title_short Neogene-quaternary seismic stratigraphy of the llancanelo lake basin, Mendoza, Argentina
title_full Neogene-quaternary seismic stratigraphy of the llancanelo lake basin, Mendoza, Argentina
title_fullStr Neogene-quaternary seismic stratigraphy of the llancanelo lake basin, Mendoza, Argentina
title_full_unstemmed Neogene-quaternary seismic stratigraphy of the llancanelo lake basin, Mendoza, Argentina
title_sort neogene-quaternary seismic stratigraphy of the llancanelo lake basin, mendoza, argentina
url http://hdl.handle.net/20.500.12110/paper_07187092_v45_n1_p35_Onnis
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AT osellaa neogenequaternaryseismicstratigraphyofthellancanelolakebasinmendozaargentina
AT delavegam neogenequaternaryseismicstratigraphyofthellancanelolakebasinmendozaargentina
AT tassonea neogenequaternaryseismicstratigraphyofthellancanelolakebasinmendozaargentina
AT lopeze neogenequaternaryseismicstratigraphyofthellancanelolakebasinmendozaargentina
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