dor_id: 4132912

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/858/814

100.1.#.a: Polyak, B. G.

524.#.#.a: Polyak, B. G. (2002). Helium isotopes in subsurface fluids from the Baikal Rift Zone: An application to the problems of geodynamics. Geofísica Internacional; Vol. 41 Núm. 4: Octubre 1, 2002; 485-490. Recuperado de https://repositorio.unam.mx/contenidos/4132912

245.1.0.a: Helium isotopes in subsurface fluids from the Baikal Rift Zone: An application to the problems of geodynamics

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

561.1.#.a: Instituto de Geofísica, UNAM

264.#.0.c: 2002

264.#.1.c: 2002-10-01

653.#.#.a: Isótopos de helio; aguas termales; rifts continentales; Lago Baikal; He-isotopes; thermal waters; continental rifts; Baikal Lake

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/858

001.#.#.#: 063.oai:revistagi.geofisica.unam.mx:article/858

041.#.7.h: spa

520.3.#.a: The 3He/ 4He = R ratio was studied in underground fluids from 104 sites from the Baikal Rift Zone, BRZ, and adjacent areas in Russia and Mongolia. The R values vary from 1.0×E-8, typical of crustal radiogenic He, up to 1.1×E-5 just below the MORB characteristics. The repeated sampling of some sites and the comparison between the data for superficial springs and productive boreholes have shown no significant R variation in time or in depth.The lowest R values belong to CH4-rich gases. The more diverse R values were measured in N2- and CO2- rich fluids, and the latter show the highest R. Judging from N2/Aratm ratio, N2-rich gases are of atmospheric origin. The fN2/fNe ratio value in CO2- rich fluids indicates the excess (non-atmospheric) nitrogen. The comparison of the R values with He concentrations and predominate components of a fluid gas phase shows that this phase is formed under the effect of solubility-controlled fractionation in gas–water system and a gain/loss of chemically active gases within the crust.The distribution of R values across the BRZ strike indicates a discharge of heat-mass flux from the mantle not only inside the BRZ but also far to the east. Inside the BRZ, the range of R values is widest: from 4.9×E-8 to 1.1×E-5. These variations are regular: R values diminish along the BRZ strike in both directions from the Tunka Basin considered as a center of rifting. The decrease is accompanied by some decay of heat flow density and shows a reduction of heat-mass flux from the mantle in periph- eral segments of the rift zone.The comparison of this trend with the data for other active continental rifts and mid-oceanic ridges suggests radically different mechanisms of mantle-crust interaction during oceanic spreading and continental rifting.doi: https://doi.org/10.22201/igeof.00167169p.2002.41.4.499

773.1.#.t: Geofísica Internacional; Vol. 41 Núm. 4: Octubre 1, 2002; 485-490

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: 485-490

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

doi: https://doi.org/10.22201/igeof.00167169p.2002.41.4.499

handle: 00cb252b6168d5ef

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

856.#.0.q: application/pdf

file_creation_date: 2002-10-21 16:47:48.0

file_modification_date: 2022-07-18 16:36:12.0

file_creator: B.G. Polyak

file_name: 0df62b1a427826e1166ed7058259d2746ec4322224f730486363aec1e1471019.pdf

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245.1.0.b: Helium isotopes in subsurface fluids from the Baikal Rift Zone: An application to the problems of geodynamics

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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