Manual e Itinerario virtual 3D de prácticas "on line" de modelización geomorfológica y ambiental del terreno con SIG mediante bases de datos geoespaciales

Memoria ID12-0071. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2012-2013

Manual teórico-práctico de teledetección y sus aplicaciones

Memoria ID-0276. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2014-2015

Evaluation of Susceptibility by Mass Movements through Stochastic and Statistical Methods for a Region of Bucaramanga, Colombia

Mass movements are one of the hydrometeorological phenomena with the most negative impacts on the study area, and their evaluation through the calculation of susceptibility provides a tool of vital importance within territorial planning and disaster risk management on natural and anthropic environments. Their evaluation took algorithms designed within stochastic and statistical methods, such as the artificial neural network, the bivariate statistical method, and the logistic regression method, which integrate inherent variables (geoenvironmental characterization) against events or dependent variables. This correlation simulates regions with a probability of occurrence of mass movement under training or weight assignment. Its construction for this study took, as a basis, 50% of the events (test) and 50% of the events (validation) randomly and with equivalent area distribution against the inherent variables. As a result, it was observed that the bivariate method presented a good performance in spatial prediction. This model presents values of AUC = 82.2% (test) and AUC = 76.9% (validation), grouping a total of 591 events of the 856 events in the high category (69%). In turn, from a second evaluation carried out by this method to each hydrographic basin, a condition was established in the area (50 km2) for coherent results at a level of analysis 1:25,000, based on the idea that the variables do not present changes greater than 20% in their attributes, added to a knowledge of the area evaluated

Geochemical Background and Baseline Values Determination and Spatial Distribution of Heavy Metal Pollution in Soils of the Andes Mountain Range (Cajamarca-Huancavelica, Peru)

[EN]Concentrations of seven heavy metals (Cd, Cr, Cu, Hg, Ni, Pb, and Zn) and one metalloid (As) as well as various parameters (pH, organic carbon, granulometric analysis and cation exchange capacity) were analyzed in 77 soil samples collected in the mining areas of La Zanja and Colquirrumi (Department of Cajamarca) and Julcani (Department of Huancavelica). Our study proposed geochemical baseline values for heavy metals in a natural region (La Zanja) from samples collected during the period of the environmental impact study (2006), that is, from an earlier period which occurred at the beginning of the exploitation of the current gold mine. The baseline values obtained were as follows: 8.26 mg kg−1 for Cr; 56.97 mg kg−1 for Ni; 22, 20 mg kg−1 for the Cu; 47.42 mg kg−1 for Zn; 27.50 mg kg−1 for As; 4.36 mg kg−1 for Cd; 4.89 mg kg−1 for Hg, and 44.87 mg kg−1 for Pb. Through the use of different indices of heavy metal contamination (geo-accumulation index (Igeo), improved Nemerow index (IIN) and potential ecological risk index (RI)), the degree of pollution caused by mining activities in two areas, Colquirrumi and Julcani, which have a high density of mining sites in operation, was determined

Curso-guía de utilización de software libre en sistemas de información geográfica y bases de datos espaciales

Memoria ID12-0078. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2012-2013

Environmental cartography aplicable to waste management of the Natural Protected Environment «Las Batuecas – Sierra de Francia». (Salamanca - Spain)

The human activity generate waste that finally go to controllable and uncontrollable landfill. In this case, the emplacement of uncontrollable landfill is analized with parameters of environmental geology, using thematics maps: lithological units, hidrogeologycal and hidrology units, geomorphological domains, geotechnical units and climatic units. This thematic carthography is cross with GIS for establish the geology favourable area and determine the environment capacity. Equally to be analized the economic and technical capability based in the waste measure and the position of urban nucleus with the emplacement of the gravity center for the position of controllable landfill. Finally are contrasted the results between the environmental geology parameters of the territorial planning and the position of gravity center and the possible capacity of the uncontrollable landfill applied to the study zone with favourable area. In this case, the gravity center is located on unfavourable area according to five thematics maps. This technique permit establish a favourable area in the SE of La Alberca, with the recommendation of realized specific studies to avoid altered and faulted areas. If this study is negative the position of controllable landfill will be to the north of La Alberca in favourable area or with artificial geologic barrie

La “Ruta de las huellas fósiles” (Monsagro, Salamanca): un ejemplo de iniciativa geoturística aplicada al desarrollo rural

Se presenta la “Ruta de las huellas fósiles”, realizada en el casco urbano de Monsagro (Sierra de Francia, Salamanca). Mediante seis paneles didácticos e interpretativos, que incluyen el acceso “online” desde las nuevas tecnologías (smartphone, tablets, ipod….) a información complementaria implementada en videos, códigos QR, geoapps y juegos, se han promocionado y divulgado los contenidos geológicos de la zona, basados principalmente en el interés paleontológico de sus icnofósiles, atribuidos a diversos tipos de gusanos y trilobites durante el Ordovícico Inferior, y en el interés geomorfológico de sus cresterías cuarcíticas con relieve apalachiense, del encajamiento fluvial del río Agadón y de sus formaciones superficiales como canchales. Los visitantes señalan como fortalezas de la ruta su fácil y didáctico recorrido, así como la implicación ciudadana en la conservación de las icnitas

Proyecto de difusión y promoción del nuevo Grado en Geología

Memoria ID-0226. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2014-2015

Hydrogeology of the Lagunas de Villafáfila area (Zamora)

Las Lagunas de Villafáfila constituyen un enclave natural en el valle del río Salado caracterizado por aguas con conductividades eléctricas entre 4000 y 5000 µS/cm). La piezometría elaborada en la zona revela el aporte de la recarga de las laderas que rodean las lagunas y el bajo gradiente hidráulico que existe en las zonas llanas perilagunares. El análisis físico-químico del agua de las lagunas y de las aguas subterráneas del entorno ha permitido caracterizar tres hidrofacies químicas: 1) bicarbonatada cálcico-magnésica; 2) clorurado-sódica; y 3) bicarbonatada clorurado-sódica. Estas representan respectivamente aguas recargadas en las vertientes de las lagunas, flujos profundos de largo recorrido que descargan en las lagunas, y mezcla de ambas. Las lagunas resultan de la mezcla de aguas con diferentes orígenes: aguas de lluvia + aguas de escorrentía + aguas de flujos locales + flujos regionales profundos + reciclado de salmueras. Las aguas cloruradas sódicas podrían procecer de la disolución de evaporitas de los relieves septentrionales de la Cordillera Cantabrica y/o de evaporitas situadas en el subsuelo desde esta Cordillera hasta el entorno de las lagunasVillafáfila lakes are natural lakes with electric conductivities between 4000-5000 µS/cm located in the valley of the Salado river. The piezometry of the area suggest that the hills surrounding the lakes are local recharge areas while the lakes and their surroundings around the lakes are discharge zones with low hydraulic gradient. Physico-chemical analyses of lake and groundwaters have allowed characterizing three hydrochemical facies: 1) calcium magnesium bicarbonate; 2) sodium chloride ; and 3) sodium bicarbonate-chloride waters. These hydrofacies record respectively, the local recharges of the surrounding hills, long and deep flow-paths discharging into the lakes, and a mix of the above. Villafálila lake waters are the result of a mixing of rain + runoff + local flows + regional deep flows + brine recycling. Sodium chloride waters could come from the dissolution of evaporites in the Cantabrian Mountains and/or from evaporites located in somewhere between these Mountains and the Villafáfila lake

Proyecto de difusión y promoción del nuevo Grado en Geología

Memoria ID-0209. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2015-2016