Persona:
Lario Gómez, Javier

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0000-0002-2582-5354
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Lario Gómez
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Javier
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2002 - 200912020 - 20222
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Nivel de acceso: info:eu-repo/semantics/closedAccess × Fecha de finalización: 2024 ×

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Mostrando 1 - 3 de 3
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    Estudios geomicrobiológicos en la Cueva de Altamira (Cantabria, N España)
    (Fundación Cueva de Nerja, 2002) Cañaveras, Juan Carlos; Sánchez Moral, Sergio; Bedoya, J.; Soler, V.; Lario Gómez, Javier
    La colonización biológica es uno de los grandes problemas de conservación de representaciones artísticas en ambientes hipogeos. Un aspecto fundamental para los estudios ele conservación en la Cueva ele Altamira ha siclo, pues, la identificación y cuantificación ele las poblaciones microbiológicas presentes en la cueva, así como la valoración ele su interjección con el soporte (pinturas, espe­leotemas, etc.) y con las aguas de infiltracicón. Los estudios geomicrobiológicos han puesto de manifiesto que las comunidades micro­biológicas que colonizan la roca soporte de la Cuev;i de Altamira ven favorecido su desarrollo bajo condiciones de alta humedad y CO, ambiental. Asimismo, se ha comprobado que la actividad metabólica de las colonias de microorganismos presentes en la cavi­dad causan la desintegración parcial o total de la superficie del substrato (roca encajante, espeleotemas o pigmentos) y genera pre­cipitados químicos que cubren o deterioran el substrato. incluidas las pinturas. Su crecimiento y desarrollo viene generado y/o favo­recido por el aporte de materia orgánica disuelta en las aguas de infiltración así como por su introducción en el sistema por efecto de las visitas. Un ejemplo ele la acción de los microorganismos consiste en el desarrollo de encostramientos y depósitos tipo moon­milk constituidos por cristales de hidromagnesita. calcita y aragonito. Cálculos geoquímicos basados en datos microclimáticos e hidroquímicos han permitido establecer un origen bioinducido de estos precipitados.
  • Miniatura
    Publicación
    Tsunami Deposits in Atlantic Iberia: A Succinct Review
    (Springer nature, 2022-06-23) Costa, Pedro J.M.; Reicherter, Klaus R.; Lario Gómez, Javier
    This chapter offers an overview of the current knowledge of the southwest Iberian tsunami geological record. Specifically, this chapter summarizes three decades of research on tsunami and storm deposit recognition, differentiation and establishing chronologies of past events. The impact and signature of the CE 1755 within coastal stratigraphic units are impressive, and its study in such a wide spatial area has provided very useful insights into tsunami dynamics. Another peculiarity addressed in this chapter is the contrast between the diverse record of tsunami or storm imprints on the Spanish part of the Gulf of Cadiz when compared with the Portuguese area. This discrepancy essentially relates to the dominance of aggrading or eroding processes favouring the preservation of deposits and also with different sediment availability during the Holocene. This allowed for a better correlation between the Spanish tsunami onshore record and its turbidite data. However, some of the deposits previously described are controversial not only sedimentologically but also because of constraints on the dates obtained. Therefore, further work is necessary on both sides of the border to establish indisputably return periods and to define a catalogue of past tsunami events affecting the southwest Iberian Peninsula during the Holocene.
  • Miniatura
    Publicación
    An extreme wave event in eastern Yucatan, Mexico: Evidence of a palaeotsunami event during the Mayan times
    (Wiley Online Library, 2020) Spencer, Chris; Bardají, Teresa; Marchante Ortega, Ángel; Garduño Monroy, Victor Hugo; Macias, Jorge; Ortega, Sergio; Lario Gómez, Javier; https://orcid.org/0000-0003-2988-8077
    The Yucatan Peninsula, Mexico, has typically been considered a tectonically stable region with little significant seismic activity. The region though, is one that is regularly affected by hurricanes. A detailed survey of ca 100 km of the eastern Yucatan and Cozumel coast identified the presence of ridges containing individual boulders measuring >1 m in length. The boulder ridges reach 5 m in height and their origin is associated with extreme wave event activity. Previously modelled tsunami waves from known seismically active zones in the region (Muertos Thrust Belt and South Caribbean Deformed Belt) are not of sufficient scale in the area of the Yucatan Peninsula to have produced the boulder ridges recorded in this study. The occurrence of hurricanes in this region is more common, but two of the most destructive (Hurricane Gilbert 1988 and Hurricane Wilma 2005) produced coastal waves too small to have created the ridges recorded here. In this paper, a new tsunami model with a source area located on the Motagua/Swan Island Fault System has been generated that indicates a tsunami event may have caused the extreme wave events that resulted in the deposition of the boulder ridges.