dor_id: 24497

506.#.#.a: Público

590.#.#.d: Los artículos enviados a la "Revista Mexicana de Ciencias Geológicas" se juzgan por medio de un proceso de revisión por pares

510.0.#.a: Consejo Nacional de Ciencia y Tecnología (CONACyT); Sistema Regional de Información en Línea para Revistas Científicas de América Latina, el Caribe, España y Portugal (Latindex); Scientific Electronic Library Online (SciELO); SCOPUS, Web Of Science (WoS); Science Citation Index-Expanded, Current Contents/ Physical, Chemical & Earth Sciences, Geoscience e-Journals, Periódica, Directory of Open Access & Hybrid Journals

561.#.#.u: https://www.geologia.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://rmcg.geociencias.unam.mx/index.php/rmcg/index

351.#.#.b: Revista Mexicana de Ciencias Geológicas

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://rmcg.geociencias.unam.mx/index.php/rmcg/article/view/360/349

100.1.#.a: Sedov, Sergey; Solleiro-rebolledo, Elizabeth; Terhorst, Birgit; Solé, Jesús; Flores-delgadillo, María De Lourdes; Werner, Gerd; Poetsch, Thomas

524.#.#.a: Sedov, Sergey, et al. (2009). The Tlaxcala basin paleosol sequence: a multiscale proxy of middle to late Quaternary environmental change in central Mexico. Revista Mexicana de Ciencias Geológicas; Vol 26 No 2, 2009. Recuperado de https://repositorio.unam.mx/contenidos/24497

245.1.0.a: The Tlaxcala basin paleosol sequence: a multiscale proxy of middle to late Quaternary environmental change in central Mexico

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

561.1.#.a: Instituto de Geología, UNAM

264.#.0.c: 2009

264.#.1.c: 2014-03-05

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 rmcg@geociencias.unam.mx

884.#.#.k: http://rmcg.geociencias.unam.mx/index.php/rmcg/article/view/360

001.#.#.#: 113.oai:ojs.rmcg.geociencias.unam.mx:article/360

041.#.7.h: spa

520.3.#.a: The Central Mexican Highlands still lack a consistent scenario of Quaternary environmental evolution, especially for the period before the last glacial/interglacial cycle. We studied an extensive tephra-paleosol sequence near the city of Tlaxcala (11 paleosols grouped in 3 units: Grey, Brown and Red) in two sections (Tlalpan and Mamut) to obtain a paleoclimate proxy for the middle to late Pleistocene and the Holocene. A general paleoclimatic trend for the last 900,000 yr. is interpreted from the Tlalpan section (the base dated by K/Ar), and a more detailed record for the period starting with Marine Isotope Stage 3 (MIS3) from the Mamut section (provided with a set of 14C dates). Morphological, physicochemical and mineralogical characteristics of all buried paleosols point to pedogenic processes typical for humid ecosystems, namely: weathering and neoformation of kaolinitic-halloysitic clay, gleization, and clay illuviation, whereas the surface late Holocene soil is characterized by precipitation of carbonates, indicative of a drier climate. In Tlalpan section, the lowest Red Unit demonstrates the strongest development of weathering features, together with maximum accumulation of clay and crystallized iron oxides. The overlying paleosols have lower weathering status; the intermediate Brown Unit shows prominent features of clay illuviation whereas the upper Grey Unit is marked by surface redoximorphic properties. We hypothesize that the Red Unit paleosols correspond to the period of the Mid Pleistocene Climate Transition, when less pronounced glacial/interglacial climate cyclicity permitted more advanced soil development through long periods of landscape stability. In the Mamut section vertic features are present in the lower paleosol, weathering and clay illuviation are more pronounced in the middle one, and the incipient upper soil is dominated by gleization features. This trend indicates the change from drier climate with strong seasonality in the second half of MIS3 to uniform cool humid conditions during major part of MIS2 and then to unstable climate with uneven, occasionally excessive precipitation in the late Glacial, which promoted local synsedimentary soil formation in a wetland environment.

773.1.#.t: Revista Mexicana de Ciencias Geológicas; Vol 26 No 2 (2009)

773.1.#.o: http://rmcg.geociencias.unam.mx/index.php/rmcg/index

022.#.#.a: ISSN electrónico: 2007-2902; ISSN impreso: 1026-8774

310.#.#.a: Cuatrimestral

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

handle: 3da33b500035533f

harvesting_date: 2023-08-23 17:00:00.0

856.#.0.q: application/pdf

245.1.0.b: The Tlaxcala basin paleosol sequence: a multiscale proxy of middle to late Quaternary environmental change in central Mexico

last_modified: 2023-08-23 17:00:00

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

license_type: by-nc-nd

_deleted_conflicts: 2-aea7e5853d376c8208cc7be8a0a0c160

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