Procesos de gravedad y hallazgos paleontológicos en La Costa de los Dinosaurios (Asturias, N España)
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Abstract
En este trabajo se ha llevado a cabo una caracterización geomorfológica del entorno del Faro de Tazones, con el fin de analizar la incidencia de los procesos de gravedad en la evolución de un tramo de la
Costa de los Dinosaurios y en el patrimonio paleontológico. Para ello,
se ha realizado trabajo de campo y de fotointerpretación con el fin de
elaborar un mapa geomorfológico de un área de 1,13 km2
que recoge
formas marinas, de gravedad y fluviales. Además, se ha llevado a cabo
un análisis de la evolución histórica del entorno mediante fotografías
aéreas y ortofotografías disponibles desde 1984. Se ha constatado la
gran inestabilidad de la zona, con presencia de grietas y escarpes/cicatrices cada vez más abundante desde 1984. Estos movimientos han
facilitado el hallazgo y recuperación de hasta 32 fósiles de vertebrados
jurásicos en el Yacimiento del Faro de Tazones, aunque también se tiene constancia de pérdidas de patrimonio fósil, debido a la repercusión
negativa de los fenómenos de gravedad
A geomorphological characterization of the Tazones´ Lighthouse surroundings has been carried out in order to analyze its incidence in the evolution of a section of The Dinosaur Coast and in the paleontological heritage. Fieldwork and photointerpretation have been performed to elaborate a geomorphological map of a 1.13 km2 area that includes marine, gravity and fluvial forms. In addition, the analysis of the historical evolution of the environment by means of aerial photographs and orthophotographs available since 1984, have been carried out. The presence of cracks and escarps since 1984 has revealed the instability of the area. The gravity processes have facilitated the discovery and recovery of up to 32 Jurassic vertebrate fossils along the Tazones Lighthouse Tracksite, although there is also evidence of losses of fossil heritage due to the negative repercussion of this kind of phenomena
A geomorphological characterization of the Tazones´ Lighthouse surroundings has been carried out in order to analyze its incidence in the evolution of a section of The Dinosaur Coast and in the paleontological heritage. Fieldwork and photointerpretation have been performed to elaborate a geomorphological map of a 1.13 km2 area that includes marine, gravity and fluvial forms. In addition, the analysis of the historical evolution of the environment by means of aerial photographs and orthophotographs available since 1984, have been carried out. The presence of cracks and escarps since 1984 has revealed the instability of the area. The gravity processes have facilitated the discovery and recovery of up to 32 Jurassic vertebrate fossils along the Tazones Lighthouse Tracksite, although there is also evidence of losses of fossil heritage due to the negative repercussion of this kind of phenomena







