GEOMORPHOLOGICAL PROCESSES AND LANDSCAPE EVOLUTION IN THE BRAZILIAN SEMIARID

Detalhes bibliográficos
Autor(a) principal: Albuquerque Xavier, Rafael
Data de Publicação: 2021
Tipo de documento: Artigo
Idioma: por
Título da fonte: Revista de Geociências do Nordeste
Texto Completo: https://periodicos.ufrn.br/revistadoregne/article/view/20692
Resumo: Geomorphological processes are responsible for promoting transformations in the semiarid landscape. Weathering is responsible for decomposing rocks, forming new materials and altering the rocky surface. In the semiarid region on crystalline rocks, weathering allows the formation of soils, such as Luvisols and litholic Neossols, mainly in the areas of metamorphic rocks, and in granitic outcrops, it produces a set of specific features that are responsible for their evolution. Soil erosion is predominantly due to runoff, producing high rates on the slopes and silting up of river beds. In general, erosion processes and soil removal are faster than weathering and the formation of new materials. Thus, during the evolutionary process, small residual regoliths will result, often exposing the rocky body. This condition was characterized by Gilbert (1877) and was called "weathering limits".
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spelling GEOMORPHOLOGICAL PROCESSES AND LANDSCAPE EVOLUTION IN THE BRAZILIAN SEMIARIDPROCESOS GEOMORFOLÓGICOS Y EVOLUCIÓN DEL PAISAJE EN EL SEMIÁRIDO BRASILEÑOPROCESSOS GEOMORFOLÓGICOS E EVOLUÇÃO DA PAISAGEM NO SEMIÁRIDO BRASILEIROGeomorphological processes are responsible for promoting transformations in the semiarid landscape. Weathering is responsible for decomposing rocks, forming new materials and altering the rocky surface. In the semiarid region on crystalline rocks, weathering allows the formation of soils, such as Luvisols and litholic Neossols, mainly in the areas of metamorphic rocks, and in granitic outcrops, it produces a set of specific features that are responsible for their evolution. Soil erosion is predominantly due to runoff, producing high rates on the slopes and silting up of river beds. In general, erosion processes and soil removal are faster than weathering and the formation of new materials. Thus, during the evolutionary process, small residual regoliths will result, often exposing the rocky body. This condition was characterized by Gilbert (1877) and was called "weathering limits".Los procesos geomorfológicos son responsables de promover transformaciones en el paisaje semiárido. La meteorización es responsable de descomponer las rocas, formar nuevos materiales y alterar la superficie rocosa. En las semiáridas en rocas cristalinas, la meteorización permite la formación de suelos, como Luvisoles y Neosoles litólicos, principalmente en las áreas de rocas metamórficas, y en afloramientos graníticos, produce un conjunto de características específicas que son responsables de su evolución. La erosión del suelo se debe principalmente a la escorrentía, que produce altas tasas en las laderas y la sedimentación de los lechos de los ríos. En general, los procesos de erosión y la eliminación del suelo son más rápidos que la intemperie y la formación de nuevos materiales. Por lo tanto, durante el proceso evolutivo, resultarán pequeños regolitos residuales, a menudo capaces de exponer el cuerpo rocoso. Esta condición se caracterizó por Gilbert (1877) y se denominó "límites de intemperismo".  Os processos geomorfológicos são responsáveis por promoverem transformações na paisagem do semiárido. O intemperismo é responsável por decompor as rochas, formar novos materiais e alterar a superfície rochosa. No semiárido sobre rochas cristalinas, o intemperismo permite a formação de solos, como os Luvissolos e os Neossolos litólicos, principalmente nas áreas de rochas metamórficas, e nos afloramentos graníticos, produz um conjunto de feições específicas que são responsáveis pela sua evolução. A erosão dos solos é predominantemente por escoamento superficial, produzindo altas taxas nas encostas e assoreamento dos leitos fluviais. De modo geral, os processos erosivos e a remoção dos solos são mais rápidos que o intemperismo e a formação de novos materais. Assim, durante o processo evolutivo resultarão delgados regolitos residuais, podendo muitas vezes expor o corpo rochoso. Essa condição foi caracterizada por Gilbert (1877) e foi denominada de “limites de intemperismo”.Universidade Federal do Rio Grande do Norte2021-07-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufrn.br/revistadoregne/article/view/2069210.21680/2447-3359.2021v7n1ID20692Revista de Geociências do Nordeste; v. 7 n. 1 (2021); 59-692447-335910.21680/2447-3359.2021v7n1reponame:Revista de Geociências do Nordesteinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNporhttps://periodicos.ufrn.br/revistadoregne/article/view/20692/14451Copyright (c) 2021 Revista de Geociências do Nordestehttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessAlbuquerque Xavier, Rafael 2022-08-09T18:29:48Zoai:periodicos.ufrn.br:article/20692Revistahttps://periodicos.ufrn.br/revistadoregne/indexPUBhttps://periodicos.ufrn.br/revistadoregne/oairegneufrn@gmail.com || periodicos@bczm.ufrn.br2447-33592447-3359opendoar:2022-08-09T18:29:48Revista de Geociências do Nordeste - Universidade Federal do Rio Grande do Norte (UFRN)false
dc.title.none.fl_str_mv GEOMORPHOLOGICAL PROCESSES AND LANDSCAPE EVOLUTION IN THE BRAZILIAN SEMIARID
PROCESOS GEOMORFOLÓGICOS Y EVOLUCIÓN DEL PAISAJE EN EL SEMIÁRIDO BRASILEÑO
PROCESSOS GEOMORFOLÓGICOS E EVOLUÇÃO DA PAISAGEM NO SEMIÁRIDO BRASILEIRO
title GEOMORPHOLOGICAL PROCESSES AND LANDSCAPE EVOLUTION IN THE BRAZILIAN SEMIARID
spellingShingle GEOMORPHOLOGICAL PROCESSES AND LANDSCAPE EVOLUTION IN THE BRAZILIAN SEMIARID
Albuquerque Xavier, Rafael
title_short GEOMORPHOLOGICAL PROCESSES AND LANDSCAPE EVOLUTION IN THE BRAZILIAN SEMIARID
title_full GEOMORPHOLOGICAL PROCESSES AND LANDSCAPE EVOLUTION IN THE BRAZILIAN SEMIARID
title_fullStr GEOMORPHOLOGICAL PROCESSES AND LANDSCAPE EVOLUTION IN THE BRAZILIAN SEMIARID
title_full_unstemmed GEOMORPHOLOGICAL PROCESSES AND LANDSCAPE EVOLUTION IN THE BRAZILIAN SEMIARID
title_sort GEOMORPHOLOGICAL PROCESSES AND LANDSCAPE EVOLUTION IN THE BRAZILIAN SEMIARID
author Albuquerque Xavier, Rafael
author_facet Albuquerque Xavier, Rafael
author_role author
dc.contributor.author.fl_str_mv Albuquerque Xavier, Rafael
description Geomorphological processes are responsible for promoting transformations in the semiarid landscape. Weathering is responsible for decomposing rocks, forming new materials and altering the rocky surface. In the semiarid region on crystalline rocks, weathering allows the formation of soils, such as Luvisols and litholic Neossols, mainly in the areas of metamorphic rocks, and in granitic outcrops, it produces a set of specific features that are responsible for their evolution. Soil erosion is predominantly due to runoff, producing high rates on the slopes and silting up of river beds. In general, erosion processes and soil removal are faster than weathering and the formation of new materials. Thus, during the evolutionary process, small residual regoliths will result, often exposing the rocky body. This condition was characterized by Gilbert (1877) and was called "weathering limits".
publishDate 2021
dc.date.none.fl_str_mv 2021-07-16
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufrn.br/revistadoregne/article/view/20692
10.21680/2447-3359.2021v7n1ID20692
url https://periodicos.ufrn.br/revistadoregne/article/view/20692
identifier_str_mv 10.21680/2447-3359.2021v7n1ID20692
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.ufrn.br/revistadoregne/article/view/20692/14451
dc.rights.driver.fl_str_mv Copyright (c) 2021 Revista de Geociências do Nordeste
https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2021 Revista de Geociências do Nordeste
https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal do Rio Grande do Norte
publisher.none.fl_str_mv Universidade Federal do Rio Grande do Norte
dc.source.none.fl_str_mv Revista de Geociências do Nordeste; v. 7 n. 1 (2021); 59-69
2447-3359
10.21680/2447-3359.2021v7n1
reponame:Revista de Geociências do Nordeste
instname:Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN
instname_str Universidade Federal do Rio Grande do Norte (UFRN)
instacron_str UFRN
institution UFRN
reponame_str Revista de Geociências do Nordeste
collection Revista de Geociências do Nordeste
repository.name.fl_str_mv Revista de Geociências do Nordeste - Universidade Federal do Rio Grande do Norte (UFRN)
repository.mail.fl_str_mv regneufrn@gmail.com || periodicos@bczm.ufrn.br
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