Analysis of the interaction between neotectonic and surface processes in a low-land intracratonic setting of South America
- Autores
- Brunetto, Ernesto; Krohling, Daniela Mariel Ines; Zalazar, María Carolina; Francisconi, María Candela
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The Quaternary sedimentary record in the continental interiors has generally been studied taking into consideration the climatic forcing. However, episodes of uplift controlling the development of landforms have often been dismissed. The interiors of continents are typically considered to have low deformation rates, lower than the rates of exogenous processes. Deformation in the middle of the Pampean plains, an intracratonic setting of South America, has been observed to have generated an elevated area surrounded by lowland plains. This elevated area is susceptible to fluvial erosion. From this fact we developed a geomorphologic modelling constrained from geomorphic markers in order to estimate the relative incidence of the different factors that control erosion in lowland landscapes. An adapted erosion code was employed, which combines fluvial incision equation (the stream power law), an uplift function spatially distributed and the hillslope diffusion equation. A low-DEM was achieved for restoring an initial non-deformed topography affected by low fluvial incision. It represents a palaeosurface chrono-stratigraphically constrained. The estimation of the model parameters was achieved by applying the inversion method. The best-fit between the numerical solution (calculated topography) and the measured topography (simulated by means a DEM) was approached by comparison of the stream longitudinal profiles. The yield numerical approach suggests that a geomorphological modelling based on the stream power law is possible to be applied in low-land landscapes. For this, a large scale change of the magnitude of the processes modelling the landscape should be expected in comparison with mountain erosional environments. Remarkably low K empirical values (K = 5 × 10−6–6 × 10−6 yr−1) suggest that the extremely low slopes exert a larger influence on the stream power in low-land landscapes. Also the diffusion coefficient D values resulted largely lower (3 × 10−4–1.9 × 10−3 cm2/yr) than presented in tectonically active landscapes (>0.03 cm2/yr). Regional uplift rates can be higher (0.35 mm/yr) than it is generally expected in low uplift rate settings (0.1–0.25 mm/yr). These estimations evidence highly dynamic surface and tectonic processes controlling the landscape evolution over intermediate time scales in an intracratonic setting.
Fil: Brunetto, Ernesto. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina
Fil: Krohling, Daniela Mariel Ines. Universidad Nacional del Litoral. Facultad de Ingeniería y Ciencias Hídricas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
Fil: Zalazar, María Carolina. Universidad Nacional del Litoral; Argentina
Fil: Francisconi, María Candela. Universidad Nacional del Litoral; Argentina - Materia
-
Fluvial Incision Rates
Intracratonic Settings
Late Pleistocene/Holocene
Low Uplift Rate Regions
Tectonic Geomorphology - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/62459
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Analysis of the interaction between neotectonic and surface processes in a low-land intracratonic setting of South AmericaBrunetto, ErnestoKrohling, Daniela Mariel InesZalazar, María CarolinaFrancisconi, María CandelaFluvial Incision RatesIntracratonic SettingsLate Pleistocene/HoloceneLow Uplift Rate RegionsTectonic Geomorphologyhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Quaternary sedimentary record in the continental interiors has generally been studied taking into consideration the climatic forcing. However, episodes of uplift controlling the development of landforms have often been dismissed. The interiors of continents are typically considered to have low deformation rates, lower than the rates of exogenous processes. Deformation in the middle of the Pampean plains, an intracratonic setting of South America, has been observed to have generated an elevated area surrounded by lowland plains. This elevated area is susceptible to fluvial erosion. From this fact we developed a geomorphologic modelling constrained from geomorphic markers in order to estimate the relative incidence of the different factors that control erosion in lowland landscapes. An adapted erosion code was employed, which combines fluvial incision equation (the stream power law), an uplift function spatially distributed and the hillslope diffusion equation. A low-DEM was achieved for restoring an initial non-deformed topography affected by low fluvial incision. It represents a palaeosurface chrono-stratigraphically constrained. The estimation of the model parameters was achieved by applying the inversion method. The best-fit between the numerical solution (calculated topography) and the measured topography (simulated by means a DEM) was approached by comparison of the stream longitudinal profiles. The yield numerical approach suggests that a geomorphological modelling based on the stream power law is possible to be applied in low-land landscapes. For this, a large scale change of the magnitude of the processes modelling the landscape should be expected in comparison with mountain erosional environments. Remarkably low K empirical values (K = 5 × 10−6–6 × 10−6 yr−1) suggest that the extremely low slopes exert a larger influence on the stream power in low-land landscapes. Also the diffusion coefficient D values resulted largely lower (3 × 10−4–1.9 × 10−3 cm2/yr) than presented in tectonically active landscapes (>0.03 cm2/yr). Regional uplift rates can be higher (0.35 mm/yr) than it is generally expected in low uplift rate settings (0.1–0.25 mm/yr). These estimations evidence highly dynamic surface and tectonic processes controlling the landscape evolution over intermediate time scales in an intracratonic setting.Fil: Brunetto, Ernesto. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; ArgentinaFil: Krohling, Daniela Mariel Ines. Universidad Nacional del Litoral. Facultad de Ingeniería y Ciencias Hídricas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; ArgentinaFil: Zalazar, María Carolina. Universidad Nacional del Litoral; ArgentinaFil: Francisconi, María Candela. Universidad Nacional del Litoral; ArgentinaPergamon-Elsevier Science Ltd2017-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/62459Brunetto, Ernesto; Krohling, Daniela Mariel Ines; Zalazar, María Carolina; Francisconi, María Candela; Analysis of the interaction between neotectonic and surface processes in a low-land intracratonic setting of South America; Pergamon-Elsevier Science Ltd; Quaternary International; 438; Part A; 5-2017; 141-1591040-6182CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.quaint.2016.06.018info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S104061821630060Xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:52:35Zoai:ri.conicet.gov.ar:11336/62459instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:52:35.532CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Analysis of the interaction between neotectonic and surface processes in a low-land intracratonic setting of South America |
title |
Analysis of the interaction between neotectonic and surface processes in a low-land intracratonic setting of South America |
spellingShingle |
Analysis of the interaction between neotectonic and surface processes in a low-land intracratonic setting of South America Brunetto, Ernesto Fluvial Incision Rates Intracratonic Settings Late Pleistocene/Holocene Low Uplift Rate Regions Tectonic Geomorphology |
title_short |
Analysis of the interaction between neotectonic and surface processes in a low-land intracratonic setting of South America |
title_full |
Analysis of the interaction between neotectonic and surface processes in a low-land intracratonic setting of South America |
title_fullStr |
Analysis of the interaction between neotectonic and surface processes in a low-land intracratonic setting of South America |
title_full_unstemmed |
Analysis of the interaction between neotectonic and surface processes in a low-land intracratonic setting of South America |
title_sort |
Analysis of the interaction between neotectonic and surface processes in a low-land intracratonic setting of South America |
dc.creator.none.fl_str_mv |
Brunetto, Ernesto Krohling, Daniela Mariel Ines Zalazar, María Carolina Francisconi, María Candela |
author |
Brunetto, Ernesto |
author_facet |
Brunetto, Ernesto Krohling, Daniela Mariel Ines Zalazar, María Carolina Francisconi, María Candela |
author_role |
author |
author2 |
Krohling, Daniela Mariel Ines Zalazar, María Carolina Francisconi, María Candela |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Fluvial Incision Rates Intracratonic Settings Late Pleistocene/Holocene Low Uplift Rate Regions Tectonic Geomorphology |
topic |
Fluvial Incision Rates Intracratonic Settings Late Pleistocene/Holocene Low Uplift Rate Regions Tectonic Geomorphology |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The Quaternary sedimentary record in the continental interiors has generally been studied taking into consideration the climatic forcing. However, episodes of uplift controlling the development of landforms have often been dismissed. The interiors of continents are typically considered to have low deformation rates, lower than the rates of exogenous processes. Deformation in the middle of the Pampean plains, an intracratonic setting of South America, has been observed to have generated an elevated area surrounded by lowland plains. This elevated area is susceptible to fluvial erosion. From this fact we developed a geomorphologic modelling constrained from geomorphic markers in order to estimate the relative incidence of the different factors that control erosion in lowland landscapes. An adapted erosion code was employed, which combines fluvial incision equation (the stream power law), an uplift function spatially distributed and the hillslope diffusion equation. A low-DEM was achieved for restoring an initial non-deformed topography affected by low fluvial incision. It represents a palaeosurface chrono-stratigraphically constrained. The estimation of the model parameters was achieved by applying the inversion method. The best-fit between the numerical solution (calculated topography) and the measured topography (simulated by means a DEM) was approached by comparison of the stream longitudinal profiles. The yield numerical approach suggests that a geomorphological modelling based on the stream power law is possible to be applied in low-land landscapes. For this, a large scale change of the magnitude of the processes modelling the landscape should be expected in comparison with mountain erosional environments. Remarkably low K empirical values (K = 5 × 10−6–6 × 10−6 yr−1) suggest that the extremely low slopes exert a larger influence on the stream power in low-land landscapes. Also the diffusion coefficient D values resulted largely lower (3 × 10−4–1.9 × 10−3 cm2/yr) than presented in tectonically active landscapes (>0.03 cm2/yr). Regional uplift rates can be higher (0.35 mm/yr) than it is generally expected in low uplift rate settings (0.1–0.25 mm/yr). These estimations evidence highly dynamic surface and tectonic processes controlling the landscape evolution over intermediate time scales in an intracratonic setting. Fil: Brunetto, Ernesto. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina Fil: Krohling, Daniela Mariel Ines. Universidad Nacional del Litoral. Facultad de Ingeniería y Ciencias Hídricas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina Fil: Zalazar, María Carolina. Universidad Nacional del Litoral; Argentina Fil: Francisconi, María Candela. Universidad Nacional del Litoral; Argentina |
description |
The Quaternary sedimentary record in the continental interiors has generally been studied taking into consideration the climatic forcing. However, episodes of uplift controlling the development of landforms have often been dismissed. The interiors of continents are typically considered to have low deformation rates, lower than the rates of exogenous processes. Deformation in the middle of the Pampean plains, an intracratonic setting of South America, has been observed to have generated an elevated area surrounded by lowland plains. This elevated area is susceptible to fluvial erosion. From this fact we developed a geomorphologic modelling constrained from geomorphic markers in order to estimate the relative incidence of the different factors that control erosion in lowland landscapes. An adapted erosion code was employed, which combines fluvial incision equation (the stream power law), an uplift function spatially distributed and the hillslope diffusion equation. A low-DEM was achieved for restoring an initial non-deformed topography affected by low fluvial incision. It represents a palaeosurface chrono-stratigraphically constrained. The estimation of the model parameters was achieved by applying the inversion method. The best-fit between the numerical solution (calculated topography) and the measured topography (simulated by means a DEM) was approached by comparison of the stream longitudinal profiles. The yield numerical approach suggests that a geomorphological modelling based on the stream power law is possible to be applied in low-land landscapes. For this, a large scale change of the magnitude of the processes modelling the landscape should be expected in comparison with mountain erosional environments. Remarkably low K empirical values (K = 5 × 10−6–6 × 10−6 yr−1) suggest that the extremely low slopes exert a larger influence on the stream power in low-land landscapes. Also the diffusion coefficient D values resulted largely lower (3 × 10−4–1.9 × 10−3 cm2/yr) than presented in tectonically active landscapes (>0.03 cm2/yr). Regional uplift rates can be higher (0.35 mm/yr) than it is generally expected in low uplift rate settings (0.1–0.25 mm/yr). These estimations evidence highly dynamic surface and tectonic processes controlling the landscape evolution over intermediate time scales in an intracratonic setting. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-05 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/62459 Brunetto, Ernesto; Krohling, Daniela Mariel Ines; Zalazar, María Carolina; Francisconi, María Candela; Analysis of the interaction between neotectonic and surface processes in a low-land intracratonic setting of South America; Pergamon-Elsevier Science Ltd; Quaternary International; 438; Part A; 5-2017; 141-159 1040-6182 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/62459 |
identifier_str_mv |
Brunetto, Ernesto; Krohling, Daniela Mariel Ines; Zalazar, María Carolina; Francisconi, María Candela; Analysis of the interaction between neotectonic and surface processes in a low-land intracratonic setting of South America; Pergamon-Elsevier Science Ltd; Quaternary International; 438; Part A; 5-2017; 141-159 1040-6182 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quaint.2016.06.018 info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S104061821630060X |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Pergamon-Elsevier Science Ltd |
publisher.none.fl_str_mv |
Pergamon-Elsevier Science Ltd |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1842269168764715008 |
score |
13.13397 |