Examinando por Autor "Herrera, Raquel"

Mostrando 1 - 6 de 6

AGUA EN ACCIÓN: TRABAJOS DE INNOVACIÓN DOCENTE PARA EL GRADO DE RECURSOS HÍDRICOS
(2024-07-30) Najarro, María; Herrera, Raquel; Martínez Coronado, Alba; Pichel, Natalia; López Mir, Berta; Montalvan, Francisco; Carreño, Francisco; Lillo, Javier; Martín Gonzáles, Fidel; Sánchez Hernández, Javier; Uscola, Mercedes; Merinero, Sonia
El RD 822/2021, por el que se establece la organización de las enseñanzas universitarias y del procedimiento de aseguramiento de su calidad, apela a construir el andamiaje de una formación universitaria focalizada en el estudiantado y en sus competencias, entendidas estas como el conjunto de conocimientos, capacidades o competencias y habilidades académicamente relevantes, que le confiere el título universitario alcanzado. Estas competencias permiten al estudiantado su inserción en el mundo laboral y, lógicamente, formar parte activa de la sociedad. Por tanto, la adaptación de los títulos a este RD debe abordar, junto con una nueva estructuración de los estudios, la incorporación de un enfoque formativo centrado en las competencias del estudiantado. Ante este desafío, se ha detectado que gran parte de las titulaciones adolecen de una deficiencia educativa que se caracteriza por la falta de integración de los conocimientos, habilidades y competencias adquiridas en las asignaturas que conforman el itinerario formativo. Con el fin de abordar esta problemática, y siguiendo lo establecido en el RD822/2021, se plantea promover una docencia innovadora, más activa, basada en una metodología de enseñanza–aprendizaje, en la cual ganan protagonismo nuevas estrategias docentes integradoras y formas de enseñar y aprender que buscan reforzar la capacidad de trabajo cooperativo, y que se apoyan en el uso de nuevas tecnologías y competencias digitales. El objetivo principal de este proyecto es trabajar de forma holística los resultados de aprendizaje que debe adquirir el graduado al finalizar sus estudios, dando continuidad a los conocimientos, habilidades y competencias entre asignaturas mediante la realización de una Trabajo Práctico de Campo (en adelante, TPC) de 4 días en los últimos cursos del grado. Se plantea un aprendizaje integrador, de forma que los estudiantes puedan utilizar y aplicar conceptos, metodologías y competencias, de varias asignaturas, optimizando y potenciando así el aprendizaje interdisciplinar, y creando para los alumnos experiencias auténticas más próximas a la realidad laboral y a la demanda social. Para ello se ha seleccionado un área de estudio (Somolinos, Guadalajara) en la que los alumnos del Grado de Recursos Hídricos (RRHH), mediante un TPC, establecerán conexiones entre las materias de Geología (1º curso), Hidrología Superficial (2º), Hidrogeología (2º), Sistemas de Información Geográfica (3ª), Tecnologías de Captación (3º) y Modelización Hidrológica e Hidrogeológica (3º), integrando habilidades y conocimientos teóricos, prácticos y digitales desarrollados en las mismas. Al finalizar este proyecto piloto, se valorará la incidencia en los resultados académicos de los estudiantes y la mejora del aprendizaje. También se analizará si la colaboración entre asignaturas y docentes implicados ha influido en la mejora de su labor docente. Se espera que este proyecto redunde en una mayor coordinación entre las asignaturas y los docentes del grado y ayude a adquirir una visión global de la titulación y del perfil de egreso esperado, tanto a los estudiantes como a los profesores. Finalmente, uno de los principales logros de este proyecto es analizar si esta propuesta metodológica innovadora puede implementarse en el grado RRHH como una asignatura en su próxima modificación para su adaptación al RD822/2021.
Analyzing lime mortars from a historic construction in Magán (Toledo, Spain): Insights into mineralogy and firing temperatures
(Elsevier, 2024-12) Hierro, Isabel del; Reyes-Téllez, Francisco; Herrera, Raquel; Lillo, Javier; Ortiz-Bustos, Josefa; Pérez-Cortes, Yolanda; Polo-Romero, Alberto; Viñuales-Ferreiro, Gonzalo
Mortar samples from the remains of a nearly vanished structure in the village of Magán (Toledo, Spain) have been investigated. Their mineralogical and chemical composition have been analyzed to understand the building technology of their historical period and the functionality of the original structure. Furthermore, a wide range of characterization techniques has been employed in the investigation regarding the amount of information they can provide and assess their effectiveness in the field. Chemical characterization of the mortar samples has been performed by XRD and XRF and completed with TGA studies. FTIR and Raman Spectroscopy, together with 28Si and 27Al-MAS-NMR and Microscopy Studies complete these characterization studies. Although the samples possess similar composition, since the predominant mineralogy is quartz, feldspars, and phyllosilicates, the differences discovered let us establish a relationship between chemical data and petrographic mineralogical data, and the source of materials
Contrasting catastrophic eruptions predicted by different intrusion and collapse scenarios
(Nature, 2018-04-18) Rincón, Marta; Márquez, Álvaro; Herrera, Raquel; Alonso-Torres, Ana; Granja-Bruña, Jose Luis; van Wyk de Vries, Ben
Catastrophic volcanic eruptions triggered by landslide collapses can jet upwards or blast sideways. Magma intrusion is related to both landslide-triggered eruptive scenarios (lateral or vertical), but it is not clear how such different responses are produced, nor if any precursor can be used for forecasting them. We approach this problem with physical analogue modelling enhanced with X-ray Multiple Detector Computed Tomography scanning, used to track evolution of internal intrusion, and its related faulting and surface deformation. We find that intrusions produce three different volcano deformation patterns, one of them involving asymmetric intrusion and deformation, with the early development of a listric slump fault producing pronounced slippage of one sector. This previously undescribed early deep potential slip surface provides a unified explanation for the two different eruptive scenarios (lateral vs. vertical). Lateral blast only occurs in flank collapse when the intrusion has risen into the sliding block. Otherwise, vertical rather than lateral expansion of magma is promoted by summit dilatation and flank buttressing. The distinctive surface deformation evolution detected opens the possibility to forecast the possible eruptive scenarios: laterally directed blast should only be expected when surface deformation begins to develop oblique to the first major fault.
Monitoring Volcanic and Tectonic Sandbox Analogue Models Using the Kinect v2 Sensor
(Wiley, 2022-05-06) Rincón, Marta; Márquez, Álvaro; Herrera, Raquel; Galland, Olivier; Sánchez Oro, Jesús; Concha, David; Montemayor, Antonio S
The measurement of surface deformation in analogue models of volcanic and tectonic processes is an area in continuous development. Properly quantifying topography change in analogue models is key for a useful comparison between experiment results and nature. The aim of this work is to evaluate the capabilities of the simple and cheap MicrosoftR Kinect v2 sensor for monitoring analogue models made of granular materials. MicrosoftR Kinect v2 is a video-gaming RedGreenBlue-Depth device combining an optical camera and an infrared distance measurement sensor. The precision of the device for model topography measurements has been quantified using 64 experiments, with variable granular materials materials and distance to the model. Additionally, we tested the capabilities of averaging several distance images to increase the precision. We have developed a specific software to facilitate the acquisition and processing of the Kinect v2 data in experiment monitoring. Our results show that measurement precision is material dependent: with clear-colored and finegrained materials, a precision ∼1.0 mm for digital elevation models with a 1.6 mm pixel size can be obtained. We show that by averaging ≥5 consecutive images the distance precision can reach values as low as 0.5 mm. To show the Kinect v2 capabilities, we present monitoring results from case study experiments modelling tectonics and volcano deformation. The Kinect v2 achieves lower spatial resolutions and precision than moresophisticated techniques such as photogrammetry. However, Kinect v2 provides a cheap, straightforward and powerful tool for monitoring the topography changes in sandbox analogue models.
Morpho-structural criteria for the identification of spreading-induced deformation processes potentially compromising stratovolcano stability
(Springer, 2023) Rincón, Marta; Márquez, A.; Herrera, Raquel; Martín González, Fidel; López, I.; Crespo Martín, Cristina
Characterisation of surface deformation at stratovolcanoes is essential for a better understanding of the processes that can compromise edifce structural stability and potential for fank collapse. Spreading produced by the presence of a hydrothermal system or intrusion of a viscous magma body can produce similar deformation signatures, and both processes have implications for fank instability. In this work, we perform analogue models and consider examples from real volcanoes (Damavand, Ubinas, Semeru and Casita) so as to characterise and recognise surface deformation patterns produced by spreading due to the presence of a hydrothermal system and in response to magma intrusion. The experiments show that there are diferences in the resulting surface deformation associated with each process. Magma intrusion results in a sharp transition between areas of subsidence and uplift, and is associated with faults with oblique strikes in the upper part of the edifce. Instead, asymmetric fank spreading is associated with hydrothermal system and results in fank bulging close to the base of the edifce. Although laboratory analogue models show diferent deformation responses that could be diagnostic of the associated processes, application in the feld is difcult as often these diagnostic features are not preserved during evolution. However, basal bulging represents a potential diagnostic for the identifcation of asymmetric volcano fank spreading associated with hydrothermal activity, and the potential for instability. Remote sensing techniques can allow identifcation of such surface deformation features, providing a useful tool for hazard assessment and design of monitoring strategies at potentially unstable volcanoes.
Morpho‑structural criteria for the identification of spreading‑induced deformation processes potentially compromising stratovolcano stability
(Springer, 2023-02-26) Rincón, Marta; Márquez, Álvaro; Herrera, Raquel; Martín González, Fidel; López, Iván; Crespo Martín, Cristina
Characterisation of surface deformation at stratovolcanoes is essential for a better understanding of the processes that can compromise edifice structural stability and potential for flank collapse. Spreading produced by the presence of a hydrothermal system or intrusion of a viscous magma body can produce similar deformation signatures, and both processes have implications for flank instability. In this work, we perform analogue models and consider examples from real volcanoes (Damavand, Ubinas, Semeru and Casita) so as to characterise and recognise surface deformation patterns produced by spreading due to the presence of a hydrothermal system and in response to magma intrusion. The experiments show that there are differences in the resulting surface deformation associated with each process. Magma intrusion results in a sharp transition between areas of subsidence and uplift, and is associated with faults with oblique strikes in the upper part of the edifice. Instead, asymmetric flank spreading is associated with hydrothermal system and results in flank bulging close to the base of the edifice. Although laboratory analogue models show different deformation responses that could be diagnostic of the associated processes, application in the field is difficult as often these diagnostic features are not preserved during evolution. However, basal bulging represents a potential diagnostic for the identification of asymmetric volcano flank spreading associated with hydrothermal activity, and the potential for instability. Remote sensing techniques can allow identification of such surface deformation features, providing a useful tool for hazard assessment and design of monitoring strategies at potentially unstable volcanoes.