Magnetic, structural and Mössbauer study of soils from an ancient mining area in Huancavelica-Peru

M. A.Castillo Corzo; L. E. Borja-Castro; L. De Los Santos Valladares; J. C. González; J. Medina Medina; A. Trujillo Quinde; C. H.W. Barnes; V. A.Peña Rodriguez

doi:10.1007/s10751-021-01786-8

Magnetic, structural and Mössbauer study of soils from an ancient mining area in Huancavelica-Peru

M. A.Castillo Corzo, L. E. Borja-Castro, L. De Los Santos Valladares, J. C. González, J. Medina Medina, A. Trujillo Quinde, C. H.W. Barnes, V. A.Peña Rodriguez

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

We present the magnetic, structural and ⁵⁷Fe Mossbauer characterization of soils collected from an ancient mercury contaminated city named Huancavelica in Peru. The characterization results indicate that silicates and carbonates are the main mineralogical constituents in the samples. In addition, ⁵⁷Fe Mössbauer spectra at room temperature reveal, the presence of two components: a magnetic component related to magnetic Fe-oxides (magnetite, hematite, goethite) and a high non-magnetic component related to Fe⁺³ in high spin configuration and tetrahedral coordination in silicates. The magnetization measurements present screening of paramagnetic, ferromagnetic and antiferromagnetic signals, typical from soils containing different silicates and iron minerals. Remarkably the Verwey and Morin transitions corresponding to magnetite and hematite, respectively, are screened by the paramagnetic signal corresponding to the major silicate components in the samples. Overall, the soils are mainly composed of crystalline and amorphous silicates, calcites and iron bearing which are typical from Andean soils.

Original language	English
Article number	3
Journal	Hyperfine Interactions
Volume	243
Issue number	1
DOIs	https://doi.org/10.1007/s10751-021-01786-8
State	Published - Dec 2022
Externally published	Yes

Bibliographical note

Funding Information:
L. De Los Santos and L. Borja thank the Incorporaci?n de Investigadores Program from the CONCYTEC ? FONDECYT. UNMSM (Contract No. 12 -2019 ? FONDECYT ? BM ? INC. INV.). The authors are indebted to Mr. Ra?l L?pez for his help during collection of the samples, Mr. J. Diaz Solano from the National University of San Marcos for his help during surveying the literature and to Mr. J. Rea Dionicio and Mr. H. Villaverde for the geography information.

Publisher Copyright:
© 2021, The Author(s).

Keywords

Contaminated soils
Iron oxides
Magnetometry of soils
Mössbauer spectroscopy
XRD

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title = "Magnetic, structural and M{\"o}ssbauer study of soils from an ancient mining area in Huancavelica-Peru",

abstract = "We present the magnetic, structural and 57Fe Mossbauer characterization of soils collected from an ancient mercury contaminated city named Huancavelica in Peru. The characterization results indicate that silicates and carbonates are the main mineralogical constituents in the samples. In addition, 57Fe M{\"o}ssbauer spectra at room temperature reveal, the presence of two components: a magnetic component related to magnetic Fe-oxides (magnetite, hematite, goethite) and a high non-magnetic component related to Fe+3 in high spin configuration and tetrahedral coordination in silicates. The magnetization measurements present screening of paramagnetic, ferromagnetic and antiferromagnetic signals, typical from soils containing different silicates and iron minerals. Remarkably the Verwey and Morin transitions corresponding to magnetite and hematite, respectively, are screened by the paramagnetic signal corresponding to the major silicate components in the samples. Overall, the soils are mainly composed of crystalline and amorphous silicates, calcites and iron bearing which are typical from Andean soils.",

keywords = "Contaminated soils, Iron oxides, Magnetometry of soils, M{\"o}ssbauer spectroscopy, XRD",

author = "Corzo, {M. A.Castillo} and Borja-Castro, {L. E.} and Valladares, {L. De Los Santos} and Gonz{\'a}lez, {J. C.} and Medina, {J. Medina} and Quinde, {A. Trujillo} and Barnes, {C. H.W.} and Rodriguez, {V. A.Pe{\~n}a}",

note = "Publisher Copyright: {\textcopyright} 2021, The Author(s).",

year = "2022",

month = dec,

doi = "10.1007/s10751-021-01786-8",

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volume = "243",

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T1 - Magnetic, structural and Mössbauer study of soils from an ancient mining area in Huancavelica-Peru

AU - Corzo, M. A.Castillo

AU - Borja-Castro, L. E.

AU - Valladares, L. De Los Santos

AU - González, J. C.

AU - Medina, J. Medina

AU - Quinde, A. Trujillo

AU - Barnes, C. H.W.

AU - Rodriguez, V. A.Peña

PY - 2022/12

Y1 - 2022/12

N2 - We present the magnetic, structural and 57Fe Mossbauer characterization of soils collected from an ancient mercury contaminated city named Huancavelica in Peru. The characterization results indicate that silicates and carbonates are the main mineralogical constituents in the samples. In addition, 57Fe Mössbauer spectra at room temperature reveal, the presence of two components: a magnetic component related to magnetic Fe-oxides (magnetite, hematite, goethite) and a high non-magnetic component related to Fe+3 in high spin configuration and tetrahedral coordination in silicates. The magnetization measurements present screening of paramagnetic, ferromagnetic and antiferromagnetic signals, typical from soils containing different silicates and iron minerals. Remarkably the Verwey and Morin transitions corresponding to magnetite and hematite, respectively, are screened by the paramagnetic signal corresponding to the major silicate components in the samples. Overall, the soils are mainly composed of crystalline and amorphous silicates, calcites and iron bearing which are typical from Andean soils.

AB - We present the magnetic, structural and 57Fe Mossbauer characterization of soils collected from an ancient mercury contaminated city named Huancavelica in Peru. The characterization results indicate that silicates and carbonates are the main mineralogical constituents in the samples. In addition, 57Fe Mössbauer spectra at room temperature reveal, the presence of two components: a magnetic component related to magnetic Fe-oxides (magnetite, hematite, goethite) and a high non-magnetic component related to Fe+3 in high spin configuration and tetrahedral coordination in silicates. The magnetization measurements present screening of paramagnetic, ferromagnetic and antiferromagnetic signals, typical from soils containing different silicates and iron minerals. Remarkably the Verwey and Morin transitions corresponding to magnetite and hematite, respectively, are screened by the paramagnetic signal corresponding to the major silicate components in the samples. Overall, the soils are mainly composed of crystalline and amorphous silicates, calcites and iron bearing which are typical from Andean soils.

KW - Contaminated soils

KW - Iron oxides

KW - Magnetometry of soils

KW - Mössbauer spectroscopy

KW - XRD

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DO - 10.1007/s10751-021-01786-8

M3 - Artículo

AN - SCOPUS:85121547949

SN - 0304-3843

VL - 243

JO - Hyperfine Interactions

JF - Hyperfine Interactions

IS - 1

M1 - 3

ER -

Magnetic, structural and Mössbauer study of soils from an ancient mining area in Huancavelica-Peru

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