Anthropogenic impacts on mineral weathering: A statistical perspective
Correspondence Analysis was adopted as tool for investigating the statistical structure of hydrochemical and weathering datasets of groundwater samples, with the main purpose of identifying impacts on mineral weathering caused by anthropogenic activities, namely fertilizing of farmlands. The hydroch...
Published in: | Applied Geochemistry |
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Online Access: | http://acervodigital.unesp.br/handle/11449/76391 http://hdl.handle.net/11449/76391 https://doi.org/10.1016/j.apgeochem.2013.06.012 |
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ftunivesp:oai:acervodigital.unesp.br:11449/76391 2023-05-15T15:52:50+02:00 Anthropogenic impacts on mineral weathering: A statistical perspective Pacheco, Fernando A.L. Landim, Paulo M.B. Szocs, Teodora Universidade Estadual Paulista (UNESP) 2014-05-27T11:30:31Z http://acervodigital.unesp.br/handle/11449/76391 http://hdl.handle.net/11449/76391 https://doi.org/10.1016/j.apgeochem.2013.06.012 eng eng Applied Geochemistry Applied Geochemistry, v. 36, p. 34-48. 0883-2927 http://hdl.handle.net/11449/76391 http://acervodigital.unesp.br/handle/11449/76391 doi:10.1016/j.apgeochem.2013.06.012 WOS:000323939600003 2-s2.0-84880629039 http://dx.doi.org/10.1016/j.apgeochem.2013.06.012 info:eu-repo/semantics/closedAccess Anthropogenic activity Anthropogenic impacts Anthropogenic inputs Chemical weathering Correspondence analysis Groundwater composition Mineral weathering Statistical structures Calcite Carbon dioxide Chlorine compounds Fertilizers Groundwater Hydrochemistry Inorganic compounds Minerals Nitrification Sodium Weathering agricultural land anthropogenic effect dissolution dolomite dolomitization effluent fertilizer loess plagioclase silica Hungary outro 2014 ftunivesp https://doi.org/10.1016/j.apgeochem.2013.06.012 2021-07-18T08:43:58Z Correspondence Analysis was adopted as tool for investigating the statistical structure of hydrochemical and weathering datasets of groundwater samples, with the main purpose of identifying impacts on mineral weathering caused by anthropogenic activities, namely fertilizing of farmlands. The hydrochemical dataset comprised measured concentrations of major inorganic compounds dissolved in groundwater, namely bicarbonate, silica (usually by-products of chemical weathering), chloride, sulphate and nitrate (typically atmospheric plus anthropogenic inputs). The weathering dataset consisted of calculated mass transfers of minerals being dissolved in loess sediments of a region located in SW Hungary (Szigetvár area), namely Na-plagioclase, calcite and dolomite, and of pollution-related concentrations of sodium, magnesium and calcium. A first run of Correspondence Analysis described groundwater composition in the study area as a system of triple influence, where spots of domestic effluents-dominated chemistries are surrounded by areas with agriculture-dominated chemistries, both imprinted over large regions of weathering dominated chemistries. A second run revealed that nitrification of N-fertilizers is promoting mineral weathering by the nitric acid reaction (anthropogenic pathway), in concurrence with the retreating of weathering by carbonic acid (natural pathway). It also indicated that dolomite and calcite are being players in a dedolomitization process driven by dissolution of gypsum fertilizers and nitrification of N-fertilizers. © 2013 Elsevier Ltd. Other/Unknown Material Carbonic acid Universidade Estadual Paulista São Paulo: Acervo Digital da UNESP / São Paulo State University Applied Geochemistry 36 34 48 |
institution |
Open Polar |
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Universidade Estadual Paulista São Paulo: Acervo Digital da UNESP / São Paulo State University |
op_collection_id |
ftunivesp |
language |
English |
topic |
Anthropogenic activity Anthropogenic impacts Anthropogenic inputs Chemical weathering Correspondence analysis Groundwater composition Mineral weathering Statistical structures Calcite Carbon dioxide Chlorine compounds Fertilizers Groundwater Hydrochemistry Inorganic compounds Minerals Nitrification Sodium Weathering agricultural land anthropogenic effect dissolution dolomite dolomitization effluent fertilizer loess plagioclase silica Hungary |
spellingShingle |
Anthropogenic activity Anthropogenic impacts Anthropogenic inputs Chemical weathering Correspondence analysis Groundwater composition Mineral weathering Statistical structures Calcite Carbon dioxide Chlorine compounds Fertilizers Groundwater Hydrochemistry Inorganic compounds Minerals Nitrification Sodium Weathering agricultural land anthropogenic effect dissolution dolomite dolomitization effluent fertilizer loess plagioclase silica Hungary Pacheco, Fernando A.L. Landim, Paulo M.B. Szocs, Teodora Anthropogenic impacts on mineral weathering: A statistical perspective |
topic_facet |
Anthropogenic activity Anthropogenic impacts Anthropogenic inputs Chemical weathering Correspondence analysis Groundwater composition Mineral weathering Statistical structures Calcite Carbon dioxide Chlorine compounds Fertilizers Groundwater Hydrochemistry Inorganic compounds Minerals Nitrification Sodium Weathering agricultural land anthropogenic effect dissolution dolomite dolomitization effluent fertilizer loess plagioclase silica Hungary |
description |
Correspondence Analysis was adopted as tool for investigating the statistical structure of hydrochemical and weathering datasets of groundwater samples, with the main purpose of identifying impacts on mineral weathering caused by anthropogenic activities, namely fertilizing of farmlands. The hydrochemical dataset comprised measured concentrations of major inorganic compounds dissolved in groundwater, namely bicarbonate, silica (usually by-products of chemical weathering), chloride, sulphate and nitrate (typically atmospheric plus anthropogenic inputs). The weathering dataset consisted of calculated mass transfers of minerals being dissolved in loess sediments of a region located in SW Hungary (Szigetvár area), namely Na-plagioclase, calcite and dolomite, and of pollution-related concentrations of sodium, magnesium and calcium. A first run of Correspondence Analysis described groundwater composition in the study area as a system of triple influence, where spots of domestic effluents-dominated chemistries are surrounded by areas with agriculture-dominated chemistries, both imprinted over large regions of weathering dominated chemistries. A second run revealed that nitrification of N-fertilizers is promoting mineral weathering by the nitric acid reaction (anthropogenic pathway), in concurrence with the retreating of weathering by carbonic acid (natural pathway). It also indicated that dolomite and calcite are being players in a dedolomitization process driven by dissolution of gypsum fertilizers and nitrification of N-fertilizers. © 2013 Elsevier Ltd. |
author2 |
Universidade Estadual Paulista (UNESP) |
format |
Other/Unknown Material |
author |
Pacheco, Fernando A.L. Landim, Paulo M.B. Szocs, Teodora |
author_facet |
Pacheco, Fernando A.L. Landim, Paulo M.B. Szocs, Teodora |
author_sort |
Pacheco, Fernando A.L. |
title |
Anthropogenic impacts on mineral weathering: A statistical perspective |
title_short |
Anthropogenic impacts on mineral weathering: A statistical perspective |
title_full |
Anthropogenic impacts on mineral weathering: A statistical perspective |
title_fullStr |
Anthropogenic impacts on mineral weathering: A statistical perspective |
title_full_unstemmed |
Anthropogenic impacts on mineral weathering: A statistical perspective |
title_sort |
anthropogenic impacts on mineral weathering: a statistical perspective |
publishDate |
2014 |
url |
http://acervodigital.unesp.br/handle/11449/76391 http://hdl.handle.net/11449/76391 https://doi.org/10.1016/j.apgeochem.2013.06.012 |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_relation |
Applied Geochemistry Applied Geochemistry, v. 36, p. 34-48. 0883-2927 http://hdl.handle.net/11449/76391 http://acervodigital.unesp.br/handle/11449/76391 doi:10.1016/j.apgeochem.2013.06.012 WOS:000323939600003 2-s2.0-84880629039 http://dx.doi.org/10.1016/j.apgeochem.2013.06.012 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.apgeochem.2013.06.012 |
container_title |
Applied Geochemistry |
container_volume |
36 |
container_start_page |
34 |
op_container_end_page |
48 |
_version_ |
1766387930214957056 |