Optimizing the potential of iron oxide-based tracers

Optimizing the potential of iron oxide-based tracers

Trabajo presentado en la EGU General Assembly (Annual Meeting of the European Geosciences Union), celebrada online deñ 4 al 8 de mayo de 2020.

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Main Authors: Guzmán, Gema, Ramos Rodríguez, Azahara, Barrón, Vidal, Gómez Calero, José Alfonso
Format: póster de congreso biblioteca
Published: 2020-05
Online Access:http://hdl.handle.net/10261/237486
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spelling dig-ias-es-10261-2374862021-04-09T11:30:41Z Optimizing the potential of iron oxide-based tracers Guzmán, Gema Ramos Rodríguez, Azahara Barrón, Vidal Gómez Calero, José Alfonso Trabajo presentado en la EGU General Assembly (Annual Meeting of the European Geosciences Union), celebrada online deñ 4 al 8 de mayo de 2020. So far, it does not exist a set of tracers which fulfill all the characteristics for being an idealsediment tracer such as, environmentally friendly, inexpensive or easily analysed (Zhang et al.,2001). For this reason, and in order to address some of the unsolved issues of water erosionprocesses, more research enquiring into the development of these soil and sediment tracers isneeded.Iron oxide-based tracers has been already tested in several water erosion trials with satisfactoryresults (e.g. Guzmán et al., 2010, 2013, 2015). In 2015, three cascade plots with a different ironoxide (magnetite, hematite and goethite) each were set up in order to evaluate soil redistributionafter the rainy season (Obereder et al., 2016). While these authors presented the total iron contentof sediments after clorhydric acid extraction, the present study will show only the free iron contentof soil and sediments using a different extraction method (CBC, citrate-bicarbonate-ditionite), asthis method is more adequate in high iron content soils, as is our case.The results depict the suitability of the CBD method extracting the three tracers with an averagerecovery rate of 0.7. The analysis of the iron content of soil and sediment samples indicates arelatively low movement of soil although showing significant statistical differences withbackground and mixture values. These results are in line with the ones detected by the magneticsusceptibility measurements. Further textural and visible spectrum analysis of the samples willallow to determine the possible selectivity factor and to discriminate qualitative and quantitativelyhematite and goethite tracers, respectively. 2021-04-09T11:30:41Z 2021-04-09T11:30:41Z 2020-05 2021-04-09T11:30:41Z póster de congreso http://purl.org/coar/resource_type/c_6670 doi: 10.5194/egusphere-egu2020-4949 EGU General Assembly (2020) http://hdl.handle.net/10261/237486 10.5194/egusphere-egu2020-4949 Publisher's version https://doi.org/10.5194/egusphere-egu2020-4949 Sí open
institution IAS ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-ias-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del IAS España
description Trabajo presentado en la EGU General Assembly (Annual Meeting of the European Geosciences Union), celebrada online deñ 4 al 8 de mayo de 2020.
format póster de congreso
author Guzmán, Gema
Ramos Rodríguez, Azahara
Barrón, Vidal
Gómez Calero, José Alfonso
spellingShingle Guzmán, Gema
Ramos Rodríguez, Azahara
Barrón, Vidal
Gómez Calero, José Alfonso
Optimizing the potential of iron oxide-based tracers
author_facet Guzmán, Gema
Ramos Rodríguez, Azahara
Barrón, Vidal
Gómez Calero, José Alfonso
author_sort Guzmán, Gema
title Optimizing the potential of iron oxide-based tracers
title_short Optimizing the potential of iron oxide-based tracers
title_full Optimizing the potential of iron oxide-based tracers
title_fullStr Optimizing the potential of iron oxide-based tracers
title_full_unstemmed Optimizing the potential of iron oxide-based tracers
title_sort optimizing the potential of iron oxide-based tracers
publishDate 2020-05
url http://hdl.handle.net/10261/237486
work_keys_str_mv AT guzmangema optimizingthepotentialofironoxidebasedtracers
AT ramosrodriguezazahara optimizingthepotentialofironoxidebasedtracers
AT barronvidal optimizingthepotentialofironoxidebasedtracers
AT gomezcalerojosealfonso optimizingthepotentialofironoxidebasedtracers
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