Genesis of subtropical soils with stony horizons in NE Argentina: Autochthony and polygenesis

Autores
Morras, Hector; Moretti, Lucas Martin; Piccolo, Gabriel Agustin; Zech, Wolfgang H.
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Deep red soils, combining characteristics of highly weathered materials together with a significant degree of clay illuviation and with stony horizons close to the saprolite, are found in the Province of Misiones, northeastern Argentina. Two basic types of stony horizons have been found, which with the fine-grained material above are together considered autochthonous. The first one is a “ferruginous nodular horizon”, composed mainly of in situ goethitic nodules of gravel size resulting from weathering and glaebulization processes of basalt. The second are “siliceous horizons” which are also in situ, derived from pre-existing quartz veins within the basalt. In contrast, different analytical evidences, particularly the vertical and geographical variations in the SOM-stable carbon isotope ratios and the mineralogical composition of fine and coarse fractions, suggest that these red subtropical soils are polygenetic, being the result of a two-fold process linked to paleoecological fluctuations. In the framework of these results, different interpretations about the origin of these soils and their parent materials, and particularly the “tropical loess” theory, are discussed.
Instituto de Suelos
Fil: Morras, Hector. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina
Fil: Moretti, Lucas Martin. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina
Fil: Piccolo, Gabriel Agustin. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cerro Azul; Argentina
Fil: Zech, Wolfgang H. University of Bayreuth. Institute of Soil Science and Soil Geography; Alemania
Fuente
Quaternary International 196 (1–2) : 137-159 (March 2009)
Materia
Génesis del Suelo
Tipos de Suelos
Suelo Subtropical
Suelo Pedregoso
Horizontes del Suelo
Soil Genesis
Soil Types
Subtropical Soils
Stony Soils
Soil Horizons
Región Noreste, Argentina
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/5502
Acceder
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oai_identifier_str oai:localhost:20.500.12123/5502
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network_name_str INTA Digital (INTA)
spelling Genesis of subtropical soils with stony horizons in NE Argentina: Autochthony and polygenesisMorras, HectorMoretti, Lucas MartinPiccolo, Gabriel AgustinZech, Wolfgang H.Génesis del SueloTipos de SuelosSuelo SubtropicalSuelo PedregosoHorizontes del SueloSoil GenesisSoil TypesSubtropical SoilsStony SoilsSoil HorizonsRegión Noreste, ArgentinaDeep red soils, combining characteristics of highly weathered materials together with a significant degree of clay illuviation and with stony horizons close to the saprolite, are found in the Province of Misiones, northeastern Argentina. Two basic types of stony horizons have been found, which with the fine-grained material above are together considered autochthonous. The first one is a “ferruginous nodular horizon”, composed mainly of in situ goethitic nodules of gravel size resulting from weathering and glaebulization processes of basalt. The second are “siliceous horizons” which are also in situ, derived from pre-existing quartz veins within the basalt. In contrast, different analytical evidences, particularly the vertical and geographical variations in the SOM-stable carbon isotope ratios and the mineralogical composition of fine and coarse fractions, suggest that these red subtropical soils are polygenetic, being the result of a two-fold process linked to paleoecological fluctuations. In the framework of these results, different interpretations about the origin of these soils and their parent materials, and particularly the “tropical loess” theory, are discussed.Instituto de SuelosFil: Morras, Hector. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; ArgentinaFil: Moretti, Lucas Martin. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; ArgentinaFil: Piccolo, Gabriel Agustin. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cerro Azul; ArgentinaFil: Zech, Wolfgang H. University of Bayreuth. Institute of Soil Science and Soil Geography; AlemaniaElsevier2019-07-15T15:13:58Z2019-07-15T15:13:58Z2009-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/5502https://www.sciencedirect.com/science/article/pii/S10406182080021031040-6182https://doi.org/10.1016/j.quaint.2008.07.001Quaternary International 196 (1–2) : 137-159 (March 2009)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-11T10:23:06Zoai:localhost:20.500.12123/5502instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-11 10:23:06.913INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Genesis of subtropical soils with stony horizons in NE Argentina: Autochthony and polygenesis
title Genesis of subtropical soils with stony horizons in NE Argentina: Autochthony and polygenesis
spellingShingle Genesis of subtropical soils with stony horizons in NE Argentina: Autochthony and polygenesis
Morras, Hector
Génesis del Suelo
Tipos de Suelos
Suelo Subtropical
Suelo Pedregoso
Horizontes del Suelo
Soil Genesis
Soil Types
Subtropical Soils
Stony Soils
Soil Horizons
Región Noreste, Argentina
title_short Genesis of subtropical soils with stony horizons in NE Argentina: Autochthony and polygenesis
title_full Genesis of subtropical soils with stony horizons in NE Argentina: Autochthony and polygenesis
title_fullStr Genesis of subtropical soils with stony horizons in NE Argentina: Autochthony and polygenesis
title_full_unstemmed Genesis of subtropical soils with stony horizons in NE Argentina: Autochthony and polygenesis
title_sort Genesis of subtropical soils with stony horizons in NE Argentina: Autochthony and polygenesis
dc.creator.none.fl_str_mv Morras, Hector
Moretti, Lucas Martin
Piccolo, Gabriel Agustin
Zech, Wolfgang H.
author Morras, Hector
author_facet Morras, Hector
Moretti, Lucas Martin
Piccolo, Gabriel Agustin
Zech, Wolfgang H.
author_role author
author2 Moretti, Lucas Martin
Piccolo, Gabriel Agustin
Zech, Wolfgang H.
author2_role author
author
author
dc.subject.none.fl_str_mv Génesis del Suelo
Tipos de Suelos
Suelo Subtropical
Suelo Pedregoso
Horizontes del Suelo
Soil Genesis
Soil Types
Subtropical Soils
Stony Soils
Soil Horizons
Región Noreste, Argentina
topic Génesis del Suelo
Tipos de Suelos
Suelo Subtropical
Suelo Pedregoso
Horizontes del Suelo
Soil Genesis
Soil Types
Subtropical Soils
Stony Soils
Soil Horizons
Región Noreste, Argentina
dc.description.none.fl_txt_mv Deep red soils, combining characteristics of highly weathered materials together with a significant degree of clay illuviation and with stony horizons close to the saprolite, are found in the Province of Misiones, northeastern Argentina. Two basic types of stony horizons have been found, which with the fine-grained material above are together considered autochthonous. The first one is a “ferruginous nodular horizon”, composed mainly of in situ goethitic nodules of gravel size resulting from weathering and glaebulization processes of basalt. The second are “siliceous horizons” which are also in situ, derived from pre-existing quartz veins within the basalt. In contrast, different analytical evidences, particularly the vertical and geographical variations in the SOM-stable carbon isotope ratios and the mineralogical composition of fine and coarse fractions, suggest that these red subtropical soils are polygenetic, being the result of a two-fold process linked to paleoecological fluctuations. In the framework of these results, different interpretations about the origin of these soils and their parent materials, and particularly the “tropical loess” theory, are discussed.
Instituto de Suelos
Fil: Morras, Hector. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina
Fil: Moretti, Lucas Martin. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina
Fil: Piccolo, Gabriel Agustin. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cerro Azul; Argentina
Fil: Zech, Wolfgang H. University of Bayreuth. Institute of Soil Science and Soil Geography; Alemania
description Deep red soils, combining characteristics of highly weathered materials together with a significant degree of clay illuviation and with stony horizons close to the saprolite, are found in the Province of Misiones, northeastern Argentina. Two basic types of stony horizons have been found, which with the fine-grained material above are together considered autochthonous. The first one is a “ferruginous nodular horizon”, composed mainly of in situ goethitic nodules of gravel size resulting from weathering and glaebulization processes of basalt. The second are “siliceous horizons” which are also in situ, derived from pre-existing quartz veins within the basalt. In contrast, different analytical evidences, particularly the vertical and geographical variations in the SOM-stable carbon isotope ratios and the mineralogical composition of fine and coarse fractions, suggest that these red subtropical soils are polygenetic, being the result of a two-fold process linked to paleoecological fluctuations. In the framework of these results, different interpretations about the origin of these soils and their parent materials, and particularly the “tropical loess” theory, are discussed.
publishDate 2009
dc.date.none.fl_str_mv 2009-03
2019-07-15T15:13:58Z
2019-07-15T15:13:58Z
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/20.500.12123/5502
https://www.sciencedirect.com/science/article/pii/S1040618208002103
1040-6182
https://doi.org/10.1016/j.quaint.2008.07.001
url http://hdl.handle.net/20.500.12123/5502
https://www.sciencedirect.com/science/article/pii/S1040618208002103
https://doi.org/10.1016/j.quaint.2008.07.001
identifier_str_mv 1040-6182
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Quaternary International 196 (1–2) : 137-159 (March 2009)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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score 12.993085

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