Listar División de Geociencias Aplicadas por tipo "article"
Mostrando ítems 81-100 de 135
-
Lithostratigraphic analysis and geochemistry of a vitric spatter-bearing ignimbrite: the Quaternary Adeje Formation, Cañadas volcano, Tenerife
(2013-06)"The 1.5-Ma Adeje Formation in SW Tenerife contains an ignimbrite sheet with remarkable textural and chemical complexity. A basal Plinian pumice-fall layer is overlain by a partly welded compound ignimbrite in which ... -
Magnetic characteristics of fracture zones and constraints on the subsurface structure of the Colima Volcanic Complex, western Mexico
(GeoScienceWorld, 2010)"Detailed magnetic anomaly surveys over the central and southern sector of the Colima rift, western Mexico, are used to investigate the subsurface structure and faults and/or fractures in the volcanic terrains formed by ... -
Mapeo del riesgo a la contaminación del agua subterránea en los Valles Centrales de Oaxaca, México
(2009)"The Central Valleys of Oaxaca, Mexico, are practically located in the center of Oaxaca State. They formed a "Y" depression inside the Sierra Madre del Sur, where the NW branch represents the Etla Valley aquifer and the ... -
Metodología polínica ambiental (MEPAM) para estudios hidrogeológicos en zonas cársticas. Caso Joya de Luna-Guaxcamá, S.L.P.
(Universidad Nacional Autónoma de México, Centro de Geociencias, 2019)"En la región central de México existen zonas con extensos afloramientos de rocas calcáreas plegadas formando sistemas montañosos con intenso desarrollo cárstico. El abastecimiento de agua en esta región se logra en una ... -
Modeling of groundwater flow and water use for San Luis Potosí Valley aquifer system
(2014)"Land use changes are currently one of the indisputable factors in the alteration of processes and cycles of the aquifer system in the San Luis Potosí Valley. Due to its importance, is considered indispensable to investigate ... -
Modeling the Groundwater Dynamics of the Celaya Valley Aquifer
(MDPI, 2023)We propose a hydrodynamic simulation model to understand the piezometric operation of the Celaya Valley aquifer. The aquifer is located at the east of Guanajuato State in México. Our proposed model reproduces, under ... -
Morphology and Solubility Products of Calcium Arsenates Found in Arsenic Contaminated Soils in an Abandoned Smelter
(2013)"The dissolution of calcium arsenates in residues released on the premises of an inactive smelter has caused high levels of arsenic pollution in the adjacent down-gradient 6 km of a perched aquifer, reaching up to 158 mg/L ... -
Morphometric and hypsometric analysis in the Tierra Nueva Basin, San Luis Potosí, México
(2017)"In areas with long periods of drought, it is essential to implement strategies to manage the available water resource. Tierra Nueva Basin is affected by this situation, consequently the farm production and livestock ... -
New Insights into the Seamount Structure of the Northern Part of the Ninetyeast Ridge (Indian Ocean) through the Integrated Analysis of Geophysical Data
(MDPI, 2023)The linear Ninetyeast Ridge (NER) is the longest oceanic intraplate volcanic edifice and main feature in the Eastern Indian Ocean. Many seamounts are located on the ridge, whose origin and age remain unclear due to the ... -
Occurrence of anticyclonic tornadoes in a topographically complex region of Mexico
(Hindawi Publishing Corporation, 2019)"Tornadoes are violent and destructive natural phenomena that occur on a local scale in most regions around the world. Severe storms occasionally lead to the formation of mesocyclones, whose direction or sense of rotation ... -
On the Radon-Related Mechanism of the Seismo- and Volcanogenic Geomagnetic Anomalies: Experiments in Tlamacas Mountain (Volcano Popocatepetl Area) and Electrode Effect Model
(MDPI, 2023)The noise-like behavior of the geomagnetic anomalies observed in Tlamacas station (volcano Popocatepetl, Mexico), linked to the ionization produced by intensive radon release, are presented in the experimental part of this ... -
Optimal GIS interpolation techniques and multivariate statistical approach to study the soil-trace metal(loid)s distribution patterns in the agricultural surface soil of Matehuala, Mexico
(Elsevier, 2023)Soils in the past mining areas are susceptible to trace metal(loid)s deposition and pose a health risk to humans. The purpose of this work is to evaluate the distribution patterns and contamination characteristics of trace ... -
Optimizing the differential pulse anodic stripping voltammetry method with hanging mercury electrode for thallium (I) determination in the presence of lead (II) and copper (II) for application in contaminated soils
(Universidad Nacional Autónoma de México, Universidad Autónoma de Tlaxcala, Universidad Veracruzana, Universidad Autónoma de Occidente, Centro de Ciencias de la Atmósfera, 2019)"The conditions that allow thallium (I) determination in the presence of lead (II) and copper (II) were optimized without prior separation of these cations, using a previously developed differential pulse anodic stripping ... -
Origen de la calidad del agua del acuífero colgado y su relación con los cambios de uso de suelo en el Valle de San Luis Potosí
(2013)"La historia de la ciudad San Luis Potosí se remonta al siglo XVI. Con el descubrimiento de yacimientos de oro y plata y la presencia de cuerpos de agua en el valle, fue fundada la ciudad San Luis Minas del Potosí, dando ... -
Paleomagnetic pole positions and geomagnetic secular variation from the Cretaceous Ponta Grossa dike swarm (Brazil)
(2015)"A detailed paleomagnetic and rock magnetic investigation has been carried out on the Early Cretaceous Ponta Grossa dike swarm in southern Brazil. This formation seems an excellent target for paleomagnetic study. The dikes ... -
Paleomagnetism and aeromagnetic survey from Tancitaro volcano (Central Mexico) - paleo-secular variation at low latitudes during the past 1 Ma
(2017-07)"El volcán Tancítaro (TV) forma parte del campo volcánico monogenético MichoacánGuanajuato (MGVF) en el sector centro-oeste del Eje Volcánico Trans Mexicano (TMVB). Los resultados de un estudio paleo magnético de flujos ... -
Paleozoic exotic blocks of the crimean mountains: stratigraphy and origin
(2014-08)"Based on numerous geological data obtained by the authors for several decades, the stratification of Permian and Carboniferous ancient and exotic blocks of Crimean Mountains is performed. The sequence of geological events ... -
Petrogenesis of voluminous silicic magmas in the Sierra Madre Occidental large igneous province, Mexican Cordillera: Insights from zircon and Hf-O isotopes
(Geological Society of America, 2022)"Combined Hf-O isotopic analyses of zircons from tuffs and lavas within the Sierra Madre Occidental (SMO) silicic large igneous province are probes of petrogenetic processes in the lower and upper crust. Existing petrogenetic ... -
Petrogenetic and tectonic implications of major and trace element and radiogenic isotope geochemistry of Pliocene to Holocene rocks from the Tacaná Volcanic Complex and Chiapanecan Volcanic Belt, southern Mexico
(Elsevier, 2018)"New major and trace element, and Sr, Nd and Pb isotope data for samples from the Volcán Tacaná, along with the published data from the Tacaná Volcanic Complex (TVC) and Chiapanecan Volcanic Belt (CVB), were used to better ... -
Petrology and geochemistry of meta-ultramafic rocks in the Paleozoic Granjeno Schist, northeastern Mexico: Remnants of Pangaea ocean floor
(2017-01)"The Granjeno Schist is a meta-volcanosedimentary upper Paleozoic complex in northeastern Mexico. We suggest different tectonic settings for metamorphism of its serpentinite and talc-bearing rocks based on petrographic and ...