dor_id: 4133093

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650.#.4.x: Físico Matemáticas y Ciencias de la Tierra

336.#.#.b: article

336.#.#.3: Artículo de Investigación

336.#.#.a: Artículo

351.#.#.6: http://revistagi.geofisica.unam.mx/index.php/RGI

351.#.#.b: Geofísica Internacional

351.#.#.a: Artículos

harvesting_group: RevistasUNAM

270.1.#.p: Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

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856.4.0.u: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1436/1565

100.1.#.a: Flores, Carlos; Avilés Esquivel, Thalia; Arango, Claudia

524.#.#.a: Flores, Carlos, et al. (2022). Seal Cap Resistivity Structure of Los Humeros Geothermal Field from Direct Current and Transient Electromagnetic Soundings. Geofísica Internacional; Vol. 61 Núm. 4: Octubre 1, 2022; 351-376. Recuperado de https://repositorio.unam.mx/contenidos/4133093

245.1.0.a: Seal Cap Resistivity Structure of Los Humeros Geothermal Field from Direct Current and Transient Electromagnetic Soundings

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

561.1.#.a: Instituto de Geofísica, UNAM

264.#.0.c: 2022

264.#.1.c: 2022-10-01

653.#.#.a: Los Humeros; Zona geotérmica; Métodos eléctricos y electromagnéticos; Resistividad; Los Humeros; Geothermal field; Electric and electromagnetic methods; Resistivity

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-ND 4.0 Internacional, https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.es, para un uso diferente consultar al responsable jurídico del repositorio por medio del correo electrónico revistagi@igeofisica.unam.mx

884.#.#.k: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1436

001.#.#.#: 063.oai:revistagi.geofisica.unam.mx:article/1436

041.#.7.h: spa

520.3.#.a: Geophysical methods provide important information in the exploration of geothermal resources.   In this study, we search for clues in the shallow resistivity structure of the presence of a known geothermal reservoir (Los Humeros, Mexico). We interpret about 410 vertical electric soundings (VES) and 230 transient electromagnetic (TEM) soundings, giving information usually down to depths of 1 km, although in some sites they reached 2km. The vertical structure of the resistivity generally consists of a resistive-conductive-resistive sequence. The most important feature is the conductive unit, known as the clay-cap, associated with hydrothermal alteration clays overlying the geothermal reservoir. This unit suffers from a widespread equivalence problem, where its resistivity and thickness cannot be determined independently. However, well temperatures and associated alteration clays help to constrain this problem. In the shallow resistive unit we found several zones where its resistivity showed abnormally low values, which could represent recharge zones where fractured rock permits the infiltration of meteoric water to reservoir depths. The conductive clay-cap not only occurs over the geothermal reservoir, but has a regional presence. However, over the reservoir this electric unit has a larger conductance and its top is shallower. The few locations where the resistivity soundings reached depths of the geothermal reservoir with well-resolved estimates give a mean resistivity of 118 ohm▪m, with no statistical difference between the producing and non-producing zones. This resistivity value falls within the range found in other geothermal zones in the world.

773.1.#.t: Geofísica Internacional; Vol. 61 Núm. 4: Octubre 1, 2022; 351-376

773.1.#.o: http://revistagi.geofisica.unam.mx/index.php/RGI

022.#.#.a: ISSN-L: 2954-436X; ISSN impreso: 0016-7169

310.#.#.a: Trimestral

300.#.#.a: Páginas: 351-376

264.#.1.b: Instituto de Geofísica, UNAM

doi: https://doi.org/10.22201/igeof.00167169p.2022.61.4.2228

handle: 00a1506ead7b0ba3

harvesting_date: 2023-06-20 16:00:00.0

856.#.0.q: application/pdf

file_creation_date: 2022-10-04 19:25:09.0

file_modification_date: 2022-10-07 18:22:46.0

file_creator: Carlos Flores

file_name: 2f726dc846f57f554f14ac36d0dacdbe40fa9a839879a3be4bbc94fab9f91247.pdf

file_pages_number: 26

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file_size: 4357229

245.1.0.b: Seal Cap Resistivity Structure of Los Humeros Geothermal Field from Direct Current and Transient Electromagnetic Soundings

last_modified: 2023-06-20 16:00:00

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

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Artículo

Seal Cap Resistivity Structure of Los Humeros Geothermal Field from Direct Current and Transient Electromagnetic Soundings

Flores, Carlos; Avilés Esquivel, Thalia; Arango, Claudia

Instituto de Geofísica, UNAM, publicado en Geofísica Internacional, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Entidad o dependencia
Instituto de Geofísica, UNAM
Revista
Repositorio
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

Flores, Carlos, et al. (2022). Seal Cap Resistivity Structure of Los Humeros Geothermal Field from Direct Current and Transient Electromagnetic Soundings. Geofísica Internacional; Vol. 61 Núm. 4: Octubre 1, 2022; 351-376. Recuperado de https://repositorio.unam.mx/contenidos/4133093

Descripción del recurso

Autor(es)
Flores, Carlos; Avilés Esquivel, Thalia; Arango, Claudia
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Seal Cap Resistivity Structure of Los Humeros Geothermal Field from Direct Current and Transient Electromagnetic Soundings
Fecha
2022-10-01
Resumen
Geophysical methods provide important information in the exploration of geothermal resources.   In this study, we search for clues in the shallow resistivity structure of the presence of a known geothermal reservoir (Los Humeros, Mexico). We interpret about 410 vertical electric soundings (VES) and 230 transient electromagnetic (TEM) soundings, giving information usually down to depths of 1 km, although in some sites they reached 2km. The vertical structure of the resistivity generally consists of a resistive-conductive-resistive sequence. The most important feature is the conductive unit, known as the clay-cap, associated with hydrothermal alteration clays overlying the geothermal reservoir. This unit suffers from a widespread equivalence problem, where its resistivity and thickness cannot be determined independently. However, well temperatures and associated alteration clays help to constrain this problem. In the shallow resistive unit we found several zones where its resistivity showed abnormally low values, which could represent recharge zones where fractured rock permits the infiltration of meteoric water to reservoir depths. The conductive clay-cap not only occurs over the geothermal reservoir, but has a regional presence. However, over the reservoir this electric unit has a larger conductance and its top is shallower. The few locations where the resistivity soundings reached depths of the geothermal reservoir with well-resolved estimates give a mean resistivity of 118 ohm▪m, with no statistical difference between the producing and non-producing zones. This resistivity value falls within the range found in other geothermal zones in the world.
Tema
Los Humeros; Zona geotérmica; Métodos eléctricos y electromagnéticos; Resistividad; Los Humeros; Geothermal field; Electric and electromagnetic methods; Resistivity
Idioma
spa
ISSN
ISSN-L: 2954-436X; ISSN impreso: 0016-7169

Enlaces