dor_id: 4132330

506.#.#.a: Público

590.#.#.d: Los artículos enviados a la revista "Geofísica Internacional", se juzgan por medio de un proceso de revisión por pares

510.0.#.a: Consejo Nacional de Ciencia y Tecnología (CONACyT); Scientific Electronic Library Online (SciELO); SCOPUS, Dialnet, Directory of Open Access Journals (DOAJ); Geobase

561.#.#.u: https://www.geofisica.unam.mx/

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

590.#.#.c: Open Journal Systems (OJS)

270.#.#.d: MX

270.1.#.d: México

590.#.#.b: Concentrador

883.#.#.u: https://revistas.unam.mx/catalogo/

883.#.#.a: Revistas UNAM

590.#.#.a: Coordinación de Difusión Cultural

883.#.#.1: https://www.publicaciones.unam.mx/

883.#.#.q: Dirección General de Publicaciones y Fomento Editorial

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

856.4.0.u: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/967/1120

100.1.#.a: Ramírez-guzmán, Alejandro; Taran, Yuri; Armienta, María Aurora

524.#.#.a: Ramírez-guzmán, Alejandro, et al. (2004). Geochemistry and origin of high-pH thermal springs in the Pacific coast of Guerrero, Mexico. Geofísica Internacional; Vol. 43 Núm. 3: Julio 1, 2004; 415-425. Recuperado de https://repositorio.unam.mx/contenidos/4132330

245.1.0.a: Geochemistry and origin of high-pH thermal springs in the Pacific coast of Guerrero, Mexico

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

561.1.#.a: Instituto de Geofísica, UNAM

264.#.0.c: 2004

264.#.1.c: 2004-07-01

653.#.#.a: Aguas termales de alto pH; Interacción agua-roca; Simulación numérica; High-pH thermal waters; Water-rock interaction; Computer simulation

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-SA 4.0 Internacional, https://creativecommons.org/licenses/by-nc-sa/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/967

001.#.#.#: 063.oai:revistagi.geofisica.unam.mx:article/967

041.#.7.h: spa

520.3.#.a: Thermal waters (40-43°C) discharging from crystalline rocks of the Xolapa complex, near Acapulco, Mexico, within an area of approximately 100 km × 50 km are characterized by a low salinity (TDS<0.5 g/kg) and very high pH (9.5-10). They represent a regional aquifer or a group of aquifers with similar conditions of water circulation and water-rock interaction. Spring gases are nitrogen- and He-rich, with a high proportion of radiogenic He (R/Ra=0.12 to 0.3). Methane from a spring with a high concentration of CH4 (10-2%)  is relatively enriched in 13C (δ13C=-26‰, PDB). All gases are very low in CO2 (<0.5%) and relatively low in Rn (8 to 25 Bq/l). Numerical simulation of water-rock interaction in a multistep flow-through reactor, using a "1st wave" approximation, suggests that this type of high-pH diluted water can be produced by step-by-step dissolution of granite and redeposition of secondary equilibrium minerals along a flow-path. This models the infiltrating meteoric water to the depth of 100°C and its ascending to the surface with conductive cooling to 40°C. Closed system conditions in respect to CO2 and a low concentration of the carbonate carbon in the aquifer rock are needed to attain the high pH in thermal water from initially neutral or slightly acidic rain water. The presence of the carbonaceous material in the aquifer rocks can explain the observed concentrations of methane in the CH4-rich spring, as well as its carbon isotopic compositiondoi: https://doi.org/10.22201/igeof.00167169p.2004.43.3.967

773.1.#.t: Geofísica Internacional; Vol. 43 Núm. 3: Julio 1, 2004; 415-425

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: 415-425

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

doi: https://doi.org/10.22201/igeof.00167169p.2004.43.3.967

handle: 4419af4b60fccedc

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

856.#.0.q: application/pdf

file_creation_date: 2022-07-07 16:33:02.0

file_modification_date: 2022-07-20 14:55:09.0

file_creator: Alejandro Ramírez-Guzmán

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245.1.0.b: Geochemistry and origin of high-pH thermal springs in the Pacific coast of Guerrero, Mexico

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

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

license_type: by-nc-sa

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