Título:
Unveiling the sedimentary infill of the Uruguayan onshore portion of the Pelotas Basin (southeast of Uruguay)
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Autor:
Morales, Ethel
Veroslavsky, Gerardo
Umpiérrez Vázquez, Rodrigo
Marmisolle Radesca, Josefina
Plenc Nobre, Facundo Daniel
Conti, Bruno
Veroslavsky, Gerardo
Umpiérrez Vázquez, Rodrigo
Marmisolle Radesca, Josefina
Plenc Nobre, Facundo Daniel
Conti, Bruno
Tutor:
Tipo de documento:
Artículo
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Palabras clave:
HVSR
Rift and drift sedimentation
Rift and drift sedimentation
Descriptores:
Año de publicación:
2024
Contenido:
Resumen:
The Uruguayan onshore portion of the Pelotas Basin is the Laguna Merin Basin. Despite its interesting geological and geophysical features, such as the highest Bouguer gravity anomaly and the youngest volcanic calderas in the country, it is the least known basin in Uruguay. In this study, a stratigraphic chart is presented for the first time, and an integrated analysis of its sedimentary infill is performed through the acquisition of horizontal-to-vertical spectral ratio data as well as geological and geophysical data available from previous studies. The Cretaceous
sedimentary infill was restricted to the rift phase, corresponding to alluvial and fluvial deposits. The Cenozoic sedimentary cover corresponds to continental to marine sedimentary rocks and sediments deposited from the Oligocene to the present day in a drift tectonic framework. It presents a regional areal extension that exceeds the structural rifting borders of the basin. The maximum Cretaceous/Cenozoic sedimentary infill thickness is ~500 m. Cretaceous sedimentary units related to the rift and Oligocene drift phases are only present in the Uruguayan
portion of the onshore Pelotas Basin, and the thickness of the Cenozoic drift deposits (from the Miocene to modern deposits) in the Brazilian region is at least twice that in the Uruguayan region.
Descripción:
Información suplementaria en: doi.org10.48331/scielodata.OUUPQ4
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Editorial:
Sociedade Brasileira de Geologia
EN:
Brazilian Journal of Geology, 2024, 54(2): e20240017.
Financiadores:
ANII: FSE_2017_1447979
Citación:
Morales, E, Veroslavsky, G, Umpiérrez Vázquez, R [y otros autores]. "Unveiling the sedimentary infill of the Uruguayan onshore portion of the Pelotas Basin (southeast of Uruguay)". Brazilian Journal of Geology. [en línea] 2024, 54(2): e20240017. 16 h. DOI: 10.1590/2317-4889202420240017
Citación:
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ISBN:
e-ISBN:
ISSN:
2317-4692
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Otros identificadores:
Cobertura geográfica:
Laguna Merín Basin
Cobertura temporal:
Departamento académico:
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Licencia:
Licencia Creative Commons Atribución (CC - By 4.0)
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| Ficheros | Descripción | Tamaño | Formato | ||
|---|---|---|---|---|---|
| 10.15902317-4889202420240017 .pdf | — | 3.22 MB | Adobe PDF |