dor_id: 4122148

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650.#.4.x: Biología y Química

336.#.#.b: article

336.#.#.3: Artículo de Investigación

336.#.#.a: Artículo

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850.#.#.a: Universidad Nacional Autónoma de México

856.4.0.u: https://www.revistascca.unam.mx/rica/index.php/rica/article/view/RICA.53508/47044

100.1.#.a: Barceinas Cruz, Hermenegildo; Ortega Guerrero, Beatriz; Romero, Francisco Martín; Sedov, Sergey; Ramos Pérez, Daniel

524.#.#.a: Barceinas Cruz, et al. (2021). IDENTIFICATION OF MINING RESIDUAL POLLUTANTS IN THE SONORA RIVER BASIN (NORTHWESTERN MEXICO) USING THERMOMAGNETIC MEASUREMENTS. Revista Internacional de Contaminación Ambiental; Vol. 37, 2021; 7-19. Recuperado de https://repositorio.unam.mx/contenidos/4122148

245.1.0.a: IDENTIFICATION OF MINING RESIDUAL POLLUTANTS IN THE SONORA RIVER BASIN (NORTHWESTERN MEXICO) USING THERMOMAGNETIC MEASUREMENTS

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Instituto de Ciencias de la Atmósfera y Cambio Climático, UNAM

264.#.0.c: 2021

264.#.1.c: 2021-01-28

653.#.#.a: thermomagnetic curves; mine wastes; jarosite; thermomagnetic curves; mine wastes; jarosite

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC 4.0 Internacional, https://creativecommons.org/licenses/by-nc/4.0/legalcode.es, para un uso diferente consultar al responsable jurídico del repositorio por medio del correo electrónico claudio.amescua@atmosfera.unam.mx

884.#.#.k: https://www.revistascca.unam.mx/rica/index.php/rica/article/view/RICA.53508

001.#.#.#: 105.oai:ojs.pkp.sfu.ca:article/53508

041.#.7.h: eng

520.3.#.a: In Cananea, Sonora (northwestern Mexico), occurred a spilling of 40 000 m³ of an acid solution coming from the Buenavista del Cobre mine, which reached some tributaries and the main water stream of the Sonora River basin. This study aims to evaluate magnetic properties as proxies to assess residual pollution in soils and sediments affected by this kind of events. Particularly, the study focused on the temperature dependence of magnetic susceptibility. Measurements of volume magnetic susceptibility vs temperatures were performed, heating samples to 700 ºC and cooling them back to room temperature. A strong increase (from three to six times the initial value) of magnetic susceptibility during heating was observed on precipitates of the acid solution dam, and on affected soils and sediments, starting at ~330 ºC, and reaching a maximum at ~430 ºC. An even stronger increase was observed during cooling. These increases are due to the transformation of iron bearing minerals (as jarosite, goethite and ferrihydrite) to ferrimagnetic iron oxides (as magnetite). Samples of non-affected soils and sediments did not exhibit this increase during heating, but a decrease at ~550 ºC related to (titano)magnetite Curie temperature, and they presented lower κ values during cooling. The transformation of these iron-bearing minerals (commonly occurring in mine wastes and acid drainage) marked by a strong κ increase during heating, can be used as an indicator of the presence of residual pollution.

773.1.#.t: Revista Internacional de Contaminación Ambiental; Vol. 37 (2021); 7-19

773.1.#.o: https://www.revistascca.unam.mx/rica/index.php/rica/index

022.#.#.a: ISSN impreso: 0188-4999

310.#.#.a: Trimestral

300.#.#.a: Páginas: 7-19

264.#.1.b: Instituto de Ciencias de la Atmósfera y Cambio Climático, UNAM

doi: https://doi.org/10.20937/RICA.53508

harvesting_date: 2023-11-08 13:10:00.0

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file_creation_date: 2021-01-29 02:33:33.0

file_modification_date: 2021-01-29 02:33:59.0

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245.1.0.b: IDENTIFICATION OF MINING RESIDUAL POLLUTANTS IN THE SONORA RIVER BASIN (NORTHWESTERN MEXICO) USING THERMOMAGNETIC MEASUREMENTS

last_modified: 2023-11-08 13:00:00

license_url: https://creativecommons.org/licenses/by-nc/4.0/legalcode.es

license_type: by-nc

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Artículo

IDENTIFICATION OF MINING RESIDUAL POLLUTANTS IN THE SONORA RIVER BASIN (NORTHWESTERN MEXICO) USING THERMOMAGNETIC MEASUREMENTS

Barceinas Cruz, Hermenegildo; Ortega Guerrero, Beatriz; Romero, Francisco Martín; Sedov, Sergey; Ramos Pérez, Daniel

Instituto de Ciencias de la Atmósfera y Cambio Climático, UNAM, publicado en Revista Internacional de Contaminación Ambiental, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Cita

Barceinas Cruz, et al. (2021). IDENTIFICATION OF MINING RESIDUAL POLLUTANTS IN THE SONORA RIVER BASIN (NORTHWESTERN MEXICO) USING THERMOMAGNETIC MEASUREMENTS. Revista Internacional de Contaminación Ambiental; Vol. 37, 2021; 7-19. Recuperado de https://repositorio.unam.mx/contenidos/4122148

Descripción del recurso

Autor(es)
Barceinas Cruz, Hermenegildo; Ortega Guerrero, Beatriz; Romero, Francisco Martín; Sedov, Sergey; Ramos Pérez, Daniel
Tipo
Artículo de Investigación
Área del conocimiento
Biología y Química
Título
IDENTIFICATION OF MINING RESIDUAL POLLUTANTS IN THE SONORA RIVER BASIN (NORTHWESTERN MEXICO) USING THERMOMAGNETIC MEASUREMENTS
Fecha
2021-01-28
Resumen
In Cananea, Sonora (northwestern Mexico), occurred a spilling of 40 000 m³ of an acid solution coming from the Buenavista del Cobre mine, which reached some tributaries and the main water stream of the Sonora River basin. This study aims to evaluate magnetic properties as proxies to assess residual pollution in soils and sediments affected by this kind of events. Particularly, the study focused on the temperature dependence of magnetic susceptibility. Measurements of volume magnetic susceptibility vs temperatures were performed, heating samples to 700 ºC and cooling them back to room temperature. A strong increase (from three to six times the initial value) of magnetic susceptibility during heating was observed on precipitates of the acid solution dam, and on affected soils and sediments, starting at ~330 ºC, and reaching a maximum at ~430 ºC. An even stronger increase was observed during cooling. These increases are due to the transformation of iron bearing minerals (as jarosite, goethite and ferrihydrite) to ferrimagnetic iron oxides (as magnetite). Samples of non-affected soils and sediments did not exhibit this increase during heating, but a decrease at ~550 ºC related to (titano)magnetite Curie temperature, and they presented lower κ values during cooling. The transformation of these iron-bearing minerals (commonly occurring in mine wastes and acid drainage) marked by a strong κ increase during heating, can be used as an indicator of the presence of residual pollution.
Tema
thermomagnetic curves; mine wastes; jarosite; thermomagnetic curves; mine wastes; jarosite
Idioma
eng
ISSN
ISSN impreso: 0188-4999

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