ListarDivisión de Geociencias Aplicadas por tema "GEOLOGÍA"
Mostrando ítems 1-20 de 45
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A new theory on tidal currents rotation
(2007-01)"Applying the linearized equations of motion, projection on the complex plane and a representation of the velocity vector and the forcing sea surface elevation gradient in function of the eigenvectors of the homogeneous ... -
A review of definitions of the Himalayan Main Central Thrust
(2017-09)"Most workers regard the Main Central Thrust (MCT) as one of the key high strain zones in the Himalaya because it accommodated at least 90 km of shortening, because that shortening exhumed and buried hanging wall and ... -
A review of Himalayan stratigraphy, magmatism, and structure
(2017-09)"The Himalayan Orogen consists of two rock packages that parallel the topographic trend of the mountain belt between the eastern and western syntaxes. To avoid confusion with appellations previously used to identify ... -
Active sinking at the bottom of the Rincón de Parangueo Maar (Guanajuato, México) and its probable relation with subsidence faults at Salamanca and Celaya
(2013)"Rincon de Parangueo is a Quaternary maar that had a perennial lake until the 1980s. The lake was gradually desiccated as a consequence of drawdown in the Salamanca-Valle de Santiago regional aquifer and now functions as ... -
Aeromagnetic anomalies and structural model of the Chicxulub multiring impact crater, Yucatan, Mexico
(2010-04)"A structural model of the Chicxulub crater is derived from aeromagnetic anomaly modeling, borehole information and magnetic mineral data. Magnetic susceptibility measurements from borehole cores and samples in the crater ... -
Alternating Subplinian and phreatomagmatic phases during the construction of a phonolitic maar-diatreme volcano (Caldera del Rey, Tenerife, Canary Islands)
(Elsevier, 2023)The Early Pleistocene, well exposed, Caldera del Rey maar-diatreme volcano, Tenerife, Canary Islands was constructed during a ? VEI 4 phonolitic eruption that involved two cycles of magmatic-to-phreatomagmatic activity and ... -
An unusual syn-eruptive bimodal eruption: The Holocene Cuicuiltic Member at Los Humeros caldera, Mexico
(2014-02)"The Cuicuiltic Member (CM) at Los Humeros Caldera, eastern Mexican Volcanic Belt is a Holocene (6.4 ka B.P.) succession of alternated fallout deposits of contrasting composition (trachydacite pumice and basaltic andesite ... -
Analysis of environmental issues at Villa de la Paz-Matehuala-Cerrito Blanco, San Luis Potosí [Análisis de la problemática ambiental en Villa de la Paz-Matehuala-Cerrito Blanco, San Luis Potosí]
(Instituto de Geolo, 2023)El suelo de Villa de la Paz y Matehuala, en San Luis Potosí, México, se encuentra contaminado por metales pesados. La responsable de la contaminación en Villa de Paz ha sido la industria minera, mientras que la industria ... -
Anomalous temperature regimen in the near-surface soil layer of Tlamacas hill and its relation to activity of Popocatépetl Volcano, Mexico
(EDP Sciences, 2020)"This article describes anomalous changes in the diurnal behavior of the temperature measured in the near-surface soil at the Tlamacas monitoring site, Popocatépetl. Results of the statistical analysis show two essential ... -
Boiling-over dense pyroclastic density currents during the formation of the similar to 100 km(3) Huichapan ignimbrite in Central Mexico: Stratigraphic and lithofacies analysis
(Elsevier, 2018)"A lithofacies analysis of the Huichapan ignimbrite has been undertaken to evaluate its depositional history from large pyroclastic density currents. The Huichapan ignimbrite is a massive ignimbrite sheet with a maximum ... -
Chemical species of chromatite of an industrial landfill in the León valley, Guanajuato, Mexico
(2009)"Chromium is a commonly identified contaminant in soils and groundwater and is widely used in industries. Disposal of industrial solid wastes can cause health and environmental risks due to the leaching and seepage of ... -
Constraining a density-dependent flow model with the transient electromagnetic method in a coastal aquifer in Mexico to assess seawater intrusion
(Springer, 2019)"Saltwater intrusion is one of the most pressing environmental concerns in coastal areas with increased water demands. Water extraction decreases the level of fresh groundwater, reducing the water pressure and allowing ... -
Deep-seated gravitational slope deformations triggered by extreme rainfall and agricultural practices (eastern Michoacan, Mexico)
(Springer, 2018)"The study of deep-seated gravitational slope deformations (DSGSD) in Mexico is scarce; therefore, their localization and causes are highly overlooked. The present paper examines the characterization of the DSGSD of Jungapeo ... -
Detailed study of radon spatial anomaly in tlamacas mountain area, volcano Popocatepetl, Mexico
(2016-03)"Results of a soil radon survey accomplished by 2 different methods during 2 different periods in the area of Tlamacas Mountain are presented. The first study, carried out from 15-APR-2010 to 09-MAY-2010 in 30 measurement ... -
Distributed stress fluidisation: Insights into the propagation mechanisms of the Abona volcanic debris avalanche (Tenerife) through a novel method for indurated deposit sedimentological analysis
(Frontiers Media S.A., 2023)Introduction: Volcanic debris avalanches mobilise large volumes and achieve long runouts with high destructive potential. However, the propagation processes that generate them are not currently explained by theoretical or ... -
Environmental context for the terminal Ediacaran biomineralization of animals
(2016-07)"In terminal Ediacaran strata of South China, the onset of calcareous biomineralization is preserved in the paleontological transition from Conotubus to Cloudina in repetitious limestone facies of the Dengying Formation. ... -
Eruptive chronology and tectonic context of the late Pleistocene Tres Vírgenes volcanic complex, Baja California Sur (México)
(Elsevier, 2018)"Based on a detailed geological map and stratigraphy aided by new Th-230/U-238 and P-206/U-238 age determinations we established the eruptive chronology of the Tres Virgenes Volcanic Complex (TVVC). The complex consists ... -
Estudio aeromagnético del complejo volcánico de Colima, occidente de México - implicaciones tectónicas y estructurales
(2011-12)"Se reporta la interpretación cualitativa y cuantitativa de anomalías aeromagnéticas del complejo volcánico de Colima (CVC) y sus alrededores. La zona se caracteriza por anomalías magnéticas de distintas amplitudes y ... -
Estudio magnético integral de flujos de lava del volcán Xitle: implicaciones arqueológicas sobre el abandono de Cuicuilco
(Universidad Nacional Autónoma de México, Instituto de Geología, 2019)"El volcán Xitle forma parte del campo volcánico Cuaternario Chichinautzin, localizado al sur del Valle de México. Sus lavas se emplazaron sobre el centro arqueológico de Cuicuilco, uno de los primeros asentamientos urbanos ... -
Factores que dan origen al minado de acuíferos en ambientes áridos: caso Valle de San Luis Potosí
(2009-08)"El análisis de datos históricos y recientes de hidrogeología, geofísica, cambio de uso del suelo, clima y las prácticas de manejo del recurso hídrico apuntan a una continua disminución de los volúmenes de agua subterránea. ...