dor_id: 4133494

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/317/304

100.1.#.a: Escobar-sanchez, J. E.; Urrutia-fucugauchi, Jaime

524.#.#.a: Escobar-sanchez, J. E., et al. (2010). Chicxulub crater post-impact hydrothermal activity – evidence from Paleocene carbonates in the Santa Elena borehole. Geofísica Internacional; Vol. 49 Núm. 2: Abril 1, 2010; 97-106. Recuperado de https://repositorio.unam.mx/contenidos/4133494

245.1.0.a: Chicxulub crater post-impact hydrothermal activity – evidence from Paleocene carbonates in the Santa Elena borehole

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

561.1.#.a: Instituto de Geofísica, UNAM

264.#.0.c: 2010

264.#.1.c: 2010-04-01

653.#.#.a: Cráter de impacto; sistema hidrotermal; sedimentos carbonatados; cráter de Chicxulub; México; Impact craters; hydrothermal systems; carbonate sediments; Chicxulub crater; Mexico

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/317

001.#.#.#: 063.oai:revistagi.geofisica.unam.mx:article/317

041.#.7.h: spa

520.3.#.a: Active hydrothermal systems develop in impact structures formed in marine settings, associated with convective processes involving hydrothermal fluids and seawater. Here we investigate hydrothermal activity in the Chicxulub crater, which was formed by a large impact on the Yucatan carbonate platform in the southern Gulf of Mexico at the Cretaceous/Tertiary boundary. The post-impact cover carbonate sediments carry a record of convective hydrothermal activity, which allow investigating on characteristics and timing/duration of the processes. We present the major and trace element geochemistry of basal Paleocene carbonate sediments (304-332 m depth) in the Santa Elena borehole located south of the crater rim outside of the main basin. Hydrothermal activity is evidenced in the major oxides and trace elements, enriched in the first 10 m above the impact breccia-carbonates contact. Basal limestones present high concentrations of silica, magnesium, aluminum, potassium and iron, with similar variation patterns in the other oxides and the trace element data. The geochemical data are consistent with element enrichment associated with hydrothermal input and less likely to result from other processes like diagenesis or detrital contributions. The relative contents of major oxides remain constant in the next twelve meters of the section above 322 m, with CaO around 50 % wt and SiO2 and MgO around 2 % wt and similar pattern in other oxides and trace elements. Considering location of the study site away from the central zone, the geochemical anomalies may arise from convective activity on the underlying impact breccia sequence and input to the water column associated with the distal hydrothermal vent sources in the central area. Concentration in Fe, K and Al is suggestive of a step pattern, also observed in the trace elements (Zn, V, Cr, Ni, Cu, Zr and Rb). After cessation of the active hydrothermal phase after ~1 Ma following the impact, intermittent hydrothermal venting may have operated for an extended time.doi: https://doi.org/10.22201/igeof.00167169p.2010.49.2.117

773.1.#.t: Geofísica Internacional; Vol. 49 Núm. 2: Abril 1, 2010; 97-106

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: 97-106

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

doi: https://doi.org/10.22201/igeof.00167169p.2010.49.2.117

handle: 1c27fc39c82bb3bf

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

856.#.0.q: application/pdf

file_creation_date: 2010-05-03 16:18:57.0

file_modification_date: 2022-06-03 22:02:33.0

file_creator: J. E. Escobar-Sanchez

file_name: 895acd8d1ec4545b7cd68384cfaf729494e55657d5b335f18045819d7a8a29b3.pdf

file_pages_number: 10

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file_size: 845321

245.1.0.b: Chicxulub crater post-impact hydrothermal activity – evidence from Paleocene carbonates in the Santa Elena borehole

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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