Denudation rates of the Quadrilátero Ferrífero (Minas Gerais, Brazil) : preliminary results from measurements of solute fluxes in rivers and in situ-produced cosmogenic 10Be.
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFOP |
Texto Completo: | http://www.repositorio.ufop.br/handle/123456789/3799 https://doi.org/10.1016/j.gexplo.2005.08.064 |
Resumo: | This paper investigates the denudation rates in the Quadrila´tero Ferrı´fero, Minas Gerais State (Brazil). The aim is to compare chemical weathering rates from measurements of solute fluxes in rivers and long-term mean erosion rates deduced from in situproduced cosmogenic 10Be concentrations measured in fluvial sediments. Both water samples and sediments were collected in fifteen stations (checkpoints) located in four hydrographic basins with low anthropogenic perturbations. Depending of the type of substratum, three degrees of chemical denudation rates from water samples are observed: (i) high rates in marbles; (ii) medium rates in schists, phyllites, granites, gneisses and migmatites; (iii) low rates in quartzites and itabirites. Preliminary results of long-term erosion rates deduced from in situ-produced 10Be are comparable with those of chemical rates. |
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Salgado, André Augusto RodriguesBraucher, RégisColin, FabriceNalini Júnior, Hermínio AriasVarajão, Angélica Fortes Drummond ChicarinoVarajão, César Augusto Chicarino2014-11-12T15:11:19Z2014-11-12T15:11:19Z2006SALGADO, A. A. R. et al. Denudation rates of the Quadrilátero Ferrífero (Minas Gerais, Brazil) : preliminary results from measurements of solute fluxes in rivers and in situ-produced cosmogenic 10Be. Journal of Geochemical Exploration, v. 88, p. 313-317, 2006. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0375674205001597>. Acesso em: 24 de set. 2014.0375-6742http://www.repositorio.ufop.br/handle/123456789/3799https://doi.org/10.1016/j.gexplo.2005.08.064This paper investigates the denudation rates in the Quadrila´tero Ferrı´fero, Minas Gerais State (Brazil). The aim is to compare chemical weathering rates from measurements of solute fluxes in rivers and long-term mean erosion rates deduced from in situproduced cosmogenic 10Be concentrations measured in fluvial sediments. Both water samples and sediments were collected in fifteen stations (checkpoints) located in four hydrographic basins with low anthropogenic perturbations. Depending of the type of substratum, three degrees of chemical denudation rates from water samples are observed: (i) high rates in marbles; (ii) medium rates in schists, phyllites, granites, gneisses and migmatites; (iii) low rates in quartzites and itabirites. Preliminary results of long-term erosion rates deduced from in situ-produced 10Be are comparable with those of chemical rates.WeatheringDenudationCosmogenic nuclidesQuadrilátero FerríferoDenudation rates of the Quadrilátero Ferrífero (Minas Gerais, Brazil) : preliminary results from measurements of solute fluxes in rivers and in situ-produced cosmogenic 10Be.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleO periódico Journal of Geochemical Exploration concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3474340713171.info:eu-repo/semantics/openAccessengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOPLICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://www.repositorio.ufop.br/bitstream/123456789/3799/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52ORIGINALARTIGO_DenudationRatesQuadrilatero.pdfARTIGO_DenudationRatesQuadrilatero.pdfapplication/pdf200727http://www.repositorio.ufop.br/bitstream/123456789/3799/1/ARTIGO_DenudationRatesQuadrilatero.pdf1e5e89b921701150e654cc15758771cdMD51123456789/37992019-05-07 13:22:58.49oai:localhost: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Repositório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332019-05-07T17:22:58Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false |
dc.title.pt_BR.fl_str_mv |
Denudation rates of the Quadrilátero Ferrífero (Minas Gerais, Brazil) : preliminary results from measurements of solute fluxes in rivers and in situ-produced cosmogenic 10Be. |
title |
Denudation rates of the Quadrilátero Ferrífero (Minas Gerais, Brazil) : preliminary results from measurements of solute fluxes in rivers and in situ-produced cosmogenic 10Be. |
spellingShingle |
Denudation rates of the Quadrilátero Ferrífero (Minas Gerais, Brazil) : preliminary results from measurements of solute fluxes in rivers and in situ-produced cosmogenic 10Be. Salgado, André Augusto Rodrigues Weathering Denudation Cosmogenic nuclides Quadrilátero Ferrífero |
title_short |
Denudation rates of the Quadrilátero Ferrífero (Minas Gerais, Brazil) : preliminary results from measurements of solute fluxes in rivers and in situ-produced cosmogenic 10Be. |
title_full |
Denudation rates of the Quadrilátero Ferrífero (Minas Gerais, Brazil) : preliminary results from measurements of solute fluxes in rivers and in situ-produced cosmogenic 10Be. |
title_fullStr |
Denudation rates of the Quadrilátero Ferrífero (Minas Gerais, Brazil) : preliminary results from measurements of solute fluxes in rivers and in situ-produced cosmogenic 10Be. |
title_full_unstemmed |
Denudation rates of the Quadrilátero Ferrífero (Minas Gerais, Brazil) : preliminary results from measurements of solute fluxes in rivers and in situ-produced cosmogenic 10Be. |
title_sort |
Denudation rates of the Quadrilátero Ferrífero (Minas Gerais, Brazil) : preliminary results from measurements of solute fluxes in rivers and in situ-produced cosmogenic 10Be. |
author |
Salgado, André Augusto Rodrigues |
author_facet |
Salgado, André Augusto Rodrigues Braucher, Régis Colin, Fabrice Nalini Júnior, Hermínio Arias Varajão, Angélica Fortes Drummond Chicarino Varajão, César Augusto Chicarino |
author_role |
author |
author2 |
Braucher, Régis Colin, Fabrice Nalini Júnior, Hermínio Arias Varajão, Angélica Fortes Drummond Chicarino Varajão, César Augusto Chicarino |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Salgado, André Augusto Rodrigues Braucher, Régis Colin, Fabrice Nalini Júnior, Hermínio Arias Varajão, Angélica Fortes Drummond Chicarino Varajão, César Augusto Chicarino |
dc.subject.por.fl_str_mv |
Weathering Denudation Cosmogenic nuclides Quadrilátero Ferrífero |
topic |
Weathering Denudation Cosmogenic nuclides Quadrilátero Ferrífero |
description |
This paper investigates the denudation rates in the Quadrila´tero Ferrı´fero, Minas Gerais State (Brazil). The aim is to compare chemical weathering rates from measurements of solute fluxes in rivers and long-term mean erosion rates deduced from in situproduced cosmogenic 10Be concentrations measured in fluvial sediments. Both water samples and sediments were collected in fifteen stations (checkpoints) located in four hydrographic basins with low anthropogenic perturbations. Depending of the type of substratum, three degrees of chemical denudation rates from water samples are observed: (i) high rates in marbles; (ii) medium rates in schists, phyllites, granites, gneisses and migmatites; (iii) low rates in quartzites and itabirites. Preliminary results of long-term erosion rates deduced from in situ-produced 10Be are comparable with those of chemical rates. |
publishDate |
2006 |
dc.date.issued.fl_str_mv |
2006 |
dc.date.accessioned.fl_str_mv |
2014-11-12T15:11:19Z |
dc.date.available.fl_str_mv |
2014-11-12T15:11:19Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
SALGADO, A. A. R. et al. Denudation rates of the Quadrilátero Ferrífero (Minas Gerais, Brazil) : preliminary results from measurements of solute fluxes in rivers and in situ-produced cosmogenic 10Be. Journal of Geochemical Exploration, v. 88, p. 313-317, 2006. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0375674205001597>. Acesso em: 24 de set. 2014. |
dc.identifier.uri.fl_str_mv |
http://www.repositorio.ufop.br/handle/123456789/3799 |
dc.identifier.issn.none.fl_str_mv |
0375-6742 |
dc.identifier.doi.none.fl_str_mv |
https://doi.org/10.1016/j.gexplo.2005.08.064 |
identifier_str_mv |
SALGADO, A. A. R. et al. Denudation rates of the Quadrilátero Ferrífero (Minas Gerais, Brazil) : preliminary results from measurements of solute fluxes in rivers and in situ-produced cosmogenic 10Be. Journal of Geochemical Exploration, v. 88, p. 313-317, 2006. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0375674205001597>. Acesso em: 24 de set. 2014. 0375-6742 |
url |
http://www.repositorio.ufop.br/handle/123456789/3799 https://doi.org/10.1016/j.gexplo.2005.08.064 |
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eng |
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