dor_id: 4132237

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/510/527

100.1.#.a: Urrutia-fucugauchi, J.; Lozano-garcía, S.; Ortega-guerrero, B.; Caballero-miranda, M.; Hansen, R.; Bohnel, H.; Negendank, J. F. W.

524.#.#.a: Urrutia-fucugauchi, J., et al. (1994). Palaeomagnetic and palaeoenvironmental studies in the southern basin of Mexico - I. Volcanosedimentary sequence and basin structure of Chalco lake. Geofísica Internacional; Vol. 33 Núm. 3: Julio 1, 1994; 421-430. Recuperado de https://repositorio.unam.mx/contenidos/4132237

245.1.0.a: Palaeomagnetic and palaeoenvironmental studies in the southern basin of Mexico - I. Volcanosedimentary sequence and basin structure of Chalco lake

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

561.1.#.a: Instituto de Geofísica, UNAM

264.#.0.c: 1994

264.#.1.c: 1994-07-01

653.#.#.a: Pleistoceno; Holoceno; sedimentación lacustre; volcanismo; Lago de Chalco; Cuenca de México; Pleistocene; Holocene; lacustrine sediments; volcanism; Chalco Lake; Basin of 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/510

001.#.#.#: 063.oai:revistagi.geofisica.unam.mx:article/510

041.#.7.h: spa

520.3.#.a: Results of stratigraphic and radiometric dating of the first twelve meters of the lacustrine sedimentary and volcanic sequence from Lake Chalco, southern Basin of Mexico are reported. The study is based on four cores recovered from the central part of Chalco. Bouguer gravity models indicate that Chalco basin is divided by a N-S structural high associated with the Xico volcano into two sub-basins with different sedimentary thickness. Maximum thickness is some 400 min the east basin and 300m in the west basin. The long-term project includes pollen, diatomes, palaeomagnetic and limnological studies and aims at a palaeoenvironmental reconstruction for the late Pleistocene and Holocene. The 12m lacustrine sequence can be divided into five major units. Ten tephra layers are present in the sequence, indicating an intense volcanic activity in the region. Age control is provided by eleven radiocarbon determinations, with about 19,000 yr BP at 9 m depth. A change in the sequence is present at about 13,000 yr BP, indicated by the radiocarbon dates and the occurrence of a tephra layer followed by a thick diatomite horizon. Average bulk sedimentation rates vary from about 0.28 mm/yr in the upper 3.5 m to about 0.80 mm/yr in the subsequent deeper section. Organic carbon variations suggest that between 3 and 8 m, the sequence corresponds mainly to a shallow lake environment with high accumulation and preservation of organic matter.doi: https://doi.org/10.22201/igeof.00167169p.1994.33.3.1181

773.1.#.t: Geofísica Internacional; Vol. 33 Núm. 3: Julio 1, 1994; 421-430

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: 421-430

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

doi: https://doi.org/10.22201/igeof.00167169p.1994.33.3.1181

handle: 761c77b77a318d32

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

856.#.0.q: application/pdf

file_creation_date: 2008-02-22 18:07:50.0

file_modification_date: 2022-07-06 17:33:59.0

file_creator: J. Urrutia-Fucugauchi

file_name: 722abba8459c392ff63cd70670af92cd5fec6caf0387a4a9851a1d0284675cdd.pdf

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245.1.0.b: Palaeomagnetic and palaeoenvironmental studies in the southern basin of Mexico - I. Volcanosedimentary sequence and basin structure of Chalco lake

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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