Persona: Lario Gómez, Javier
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Lario Gómez
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Javier
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Publicación Holocene incised-valley fills and coastal evolution in the Gulf of Cádiz (Southern Spain)(INQUA, International Union For Quaternary Research, 1998) Dabrio, Cristino José; Zazo Cardeña, Caridad; Goy Goy, José Luis; Sierro, F. J.; Borja, Francisco; González Delgado, José Ángel; Flores Villarejo, José Abel; Lario Gómez, JavierPublicación The underwater archaeological and historical heritage of Gibraltar(Mancomunidad de Municipios del Campo de Gibraltar, 2001) Finlayson, Clive; Bound, Mensund; Fa, Darren A.; Lario Gómez, JavierGibraltar' s rich and varied heritage has been the subject of a great man y books, articles, documentaries and other media (Finlayson & Finlayson, 1999 & references therein). A large part of this heritage has doubtless stemmed from Gibraltar's unique location at the meeting point between the Atlantic Ocean and the Mediterranean Sea. The Rock and its hinterland therefore have had important connections with the sea from the earliest of times, and it is no surprise to find that a good deal of Gibraltar' s links are maritime. Ajoint team from the Gibraltar Museum, Oxford University MARE, and Museo de Historia Natural de Madrid are working together on a number of projects (assisted by localPublicación An extreme wave event in Timanfaya National Park: Possible first geological evidence of the 1755 Lisbon tsunami in Lanzarote, Canary Islands(Wiley, 2024-10) Galindo Jimenez, Inés; Romero, Carmen; Martín-González, Esther; Sanchez, Nieves; Vegas, Juana; Lario Gómez, Javier; https://orcid.org/0000-0002-2545-5234; https://orcid.org/0000-0002-9125-2275; https://orcid.org/0000-0001-5659-2197; https://orcid.org/0000-0001-9239-5254; https://orcid.org/0000-0001-9137-0020The identification of extreme wave events' deposits is of the main importance in the contexts of global warming and coastal geohazards. Specifically, improving the knowledge of this phenomenon is extremely relevant for high populated volcanic oceanic islands. In this paper, we analyse two extreme wave event deposits located on a coastal platform formed by lavas from the 1730–1736 Timanfaya eruption in Lanzarote Island (Spain). The first one consists of a boulder ridge parallel to the coast of approximately 750 m in length and 7 m asl in elevation. These are accumulations of non-cemented large boulders and sands that extend about 150 m inland from the intertidal zone. The boulders are of basaltic composition, heterometric, sub-rounded to angular, and they reach sizes up to 3 m of major axis. They are imbricated both inland and seaward, indicating a strong inundation and backwash. The second deposit is a small outcrop of boulders of equal composition and sizes up to 1 m of major axis, reaching an elevation up to 6 m asl, and has been correlated with the former deposit. Here, the boulders were also deposited on the Timanfaya lavas and later covered by lava flows extruded during the 1824 eruption. Therefore, both deposits could be related with a chronologically well-contrasted event, between 1736 and 1824. The origin of these deposits could be interpreted as an extreme storm or a tsunami. There are no historical records of extreme storms in the Canary Islands for this period, but there is documentary evidence of the tsunamis of 1761 and 1755. Moreover, for the latter, there is documentation that indicates its impact on coastal infrastructures in the Canary Islands, including the western slope of Lanzarote, and therefore, we propose these deposits as the first sedimentary evidence of the 1755 tsunami in the Canary Islands.Publicación Marine Isotope Stages: Oxygen Isotope Stratigraphy(Asociación Española para el Estudio del Cuaternario (AEQUA), Sociedad Española de Geomorfología (SEG), 2022-12-15) Bardají, Teresa; Lario Gómez, Javier; https://orcid.org/0000-0003-2988-8077La estratigrafía de los isótopos del oxígeno no es un método de datación por sí mismo, sino que es necesaria la comparación de nuestros registros con secuencias isotópicas “globales “para su correlación. La proporción de los isótopos del oxígeno (O16, O18) en compuestos moleculares que contienen este elemento (p.ej. H2O, CaCO3) varía en función de la temperatura. La relación O18/O16 (δO18) nos ayuda no solo a determinar las temperaturas en el pasado geológico de la Tierra, sino también a identificar los cambios en el volumen de hielo en casquetes polares, promovidos por las variaciones en los parámetros orbitales (precesión, oblicuidad, excentricidad). La sucesión de épocas glaciares e interglaciares a lo largo del Cuaternario ha quedado registrada en sondeos oceánicos profundos (CaCO3 de los caparazones de organismos bentónicos y planctónicos) definiéndose estadios isotópicos mediante números pares (glaciares) e impares (interglaciares). La escala isotópica ha adquirido un valor cronoestratigráfico al construirse modelos de edad a partir de dataciones isotópicas (C14, series de Uranio, para los estadios isotópicos más recientes), la escala paleomagnética, y, sobre todo, mediante su ajuste astronómico. La correlación de nuestros registros con las secuencias isotópicas así establecidas nos permite establecer su cronología e interpretar la respuesta paleoclimática en nuestras latitudes ante las variaciones paleoclimáticas globales.Publicación Climate change impacts on coastal areas(Asociación Española para la Enseñanza de las Ciencias de la Tierra, AEPECT, 2009) Bardají, Teresa; Zazo Cardeña, Caridad; Cabero, Ana; Dabrio, Cristino José; Goy Goy, José Luis; Silva, Pablo Gabriel; Lario Gómez, Javier; https://orcid.org/0000-0003-2988-8077El litoral es uno de los medios naturales más transformados por la actividad antrópica, ya sea directa o indirectamente. El 40% de la población mundial vive en la franja costera (un 44% en España), por lo que cualquier alteración del medio natural se convierte en un gran riesgo. Desde la segunda mitad del s.XX, el balance sedimentario ha ido presentando, en general, una tendencia progresivamente negativa debido a actividades humanas, incrementándose los problemas relacionados con la erosión y retroceso costero, a menudo confundidos con una subida del nivel del mar. En los últimos años existe una creciente tendencia a dramatizar sobre el futuro de nuestro litoral, no solo español sino global, a punto de desaparecer por la subida generalizada del nivel del mar que va a arrasar gran parte de los terrenos costeros. Nuestro litoral está enfermo pero para poder entender cuál es el peligro real frente al cambio climático, es necesario entender bien cuál es la problemática concreta de cada sector, es decir cómo es el balance sedimentario real, cuáles son las causas de los posibles desequilibrios, cuál ha sido la tendencia del nivel del mar en un pasado cercano, y sobre todo saber si un determinado sector podría o no adaptarse de forma natural a una subida del nivel del mar, etc. Es decir, tenemos que conocer antes que juzgar.Publicación Tectonic and morphosedimentary features of the 2010 Chile earthquake and tsunami in the Arauco Gulf and Mataquito River (Central Chile)(Elsevier, 2016-05-23) Zazo Cardeña, Caridad; Goy Goy, José Luis; Lario Gómez, JavierEffects of the 2010 Chilean earthquake and tsunami were evaluated at coastal sites between two zones of different coseismic deformations. Land deformation, run-up, inundation extent and deposit extent and thickness were measured in the field, providing insights into the processes and morphological changes associated with tsunami inundation and backwash. Three to five waves, of up to 10 m height, deposited several related layers along the coast, the thickness of these sandy deposits does not exceed 80 cm, and is generally less than 30 cm. Coseismic deformation measured by means of bio- and geomorphic markers agrees well both with model deformation and measured GPS. There is no relationship between the run-up height and the trend of coseismic deformation (uplift or subsidence), mainly because the effects of the tsunami were influenced locally by offshore bathymetry and coastal morphology.Publicación Isotope stratigraphy of the last glacial cycle (mis 4- mis 1): Greenland stadials / interstadials; Dansgaard-oeschger and heinrich events(Asociación Española para el Estudio del Cuaternario (AEQUA), Sociedad Española de Geomorfología (SEG), 2022-12-15) Bardají, Teresa; Lario Gómez, Javier; https://orcid.org/0000-0003-2988-8077Ice cores at the polar ice sheets (Greenland and Antarctica) have expanded the understanding of climate changes recorded by the marine stratigraphic scale of oxygen isotopes. The wide variety of data obtained, both from the analysis of ice and from the air trapped in bubbles, make the ice cores one of the palaeoclimatic records of highest quality. The variation in the isotope ratios of oxygen (∂O18), deuterium (∂D) and other trace elements, together with the high chronological precision reached by annual layer counting and other dating methods, allow to establish a detailed chronological scale for MIS 4 to MIS 1, poorly represented in deep ocean cores. The Greenland ice-cores show a large climatic variability along this period, with very rapid warming events (Dansgaard - Oeschger events; Greenland interstadials) followed by slower cooling events (Greenland stadials), some of which particularly cold (Heinrich events). Comparison of these events with contemporary records in middle latitudes allows us to interpret the response of different sedimentary environments to such climatic variability. Two examples of these records have been selected: a speleothem from a karstic cave and a polygenic sedimentary sequence.Publicación The Mediterranean Sea and the Gulf of Cadiz as a natural laboratory for paleotsunami research: Recent advancements(Elsevier, 2021) Martini, Paolo Marco de; Bruins, H. J.; Feist, Lisa; Goodman Tchernov, Beverly N.; Hadler, H.; Mastronuzzi, G.; Obrocki, L.; Pantosti, Daniela; Paris, Raphaël; Reicherter, Klaus R.; Smedile, A.; Vött, A.; Lario Gómez, JavierAfter the 2004 Indian Ocean (IOT) and the 2011 Tohoku-oki tsunamis, new research in tsunami-related fields was strongly stimulated worldwide and also in the Mediterranean. This research growth yields substantial advancements in tsunami knowledge. Among these advancements is the “Paleotsunami” research that has marked particular progress on the reconstruction of the tsunami history of a region. As an integration of the historical documentation available in the Mediterranean and the Gulf of Cadiz areas, geological and geoarchaeological records provide the insights to define the occurrence, characteristics, and impact of tsunamis of the past. Here, we present the recent advancements done for both the onshore and offshore realms. As for the onshore, we discuss case studies dealing with recent high-resolution works based on: a) direct push in situ sensing techniques, applied to identification and characterization of typical paleotsunami deposits features; b) combined XRF-X-CT approach, implemented for the identification of fine-scale sedimentary structures useful for the definition of the causative flow dynamics; c) the geoarchaeological “new field” contribution, with the development of specific diagnostic criteria in search for tsunami impact traces in archaeological strata; d) comparison of multiple dating methods and of different modeling codes for the definition of the potential source for the displacement of boulders of exceptional dimension, identified by 3D size calculation. As for the offshore advancements, we present case studies focusing on the recognition of tsunami deposits and their sedimentary traces in the geological record from the nearshore, thanks to diver-operated coring equipment, down to the continental slope, by means of vibracorer and long gravity core sampling in deeper areas. The examples provided show a multiproxy approach with a high potential of retrieving a complete record of paleotsunami traces at least during the Holocene. This is based on the combination of multidisciplinary approaches including X-ray imaging, high-resolution measurement of physical properties, Xray fluorescence data, grain-size analysis, micropaleontology, palynological content, isotopic and optically stimulated luminescence dating methods.Publicación Presencia de bloques asociados a un evento de oleaje extremo en el Mediterráneo occidental (Cabo Cope, Murcia, España): posible evidencia de un tsunami(Springer Nature, 2023-03-20) Spencer, Chris; Bardají, Teresa; Lario Gómez, Javier; https://orcid.org/0000-0003-2988-8077La región de Murcia, en el sureste de la Península Ibérica, registra una actividad tectónica moderada, registrándose terremotos de hasta 6,2-6,9 Mw. Aún con una actividad sísmica de esta magnitud no existen registros geológicos ni instrumentales de tsunamis que hayan afectado a la zona. La presencia en Cabo Cope, Murcia, de un cordón litoral de bloques imbricados de tamaño métrico (compuestos por rocas del Pleistoceno superior) que alcanzan una altura de hasta 4 m sobre el nivel del mar, indica que en la zona se ha producido un evento de oleaje extremo durante el Holoceno. Mediante el estudio de las condiciones de oleaje generadas durante grandes tormentas en esta zona, se infiere que este cordón litoral de bloques parece haber sido causado por oleaje extremo asociado a un evento sísmico, como un tsunami.Publicación Micromorphological Study of Site Formation Processes at El Sidrón Cave (Asturias, Northern Spain): Encrustations over Neanderthal Bones(MDPI, 2021) Cañaveras, Juan Carlos; Sánchez Moral, Sergio; Duarte Matías, Elsa; Santos Delgado, Gabriel; Silva, Pablo Gabriel; Cuezva, Soledad; Fernández Cortés, Ángel; Muñoz Cervera, María Concepción; Rasilla, Marco de la; Lario Gómez, JavierEl Sidrón Cave is an archaeological and anthropological reference site of the Neanderthal world. It shows singular activity related to cannibalisation, and all existing processes are relevant to explain the specific behaviour of the concerned individuals. This paper presents geoarchaeological data, primarily based on mineralogical and petrographic techniques, from an investigation of the nature of the encrustations or hard coatings that affect a large part of the Neanderthal bone remains and their relationship with the depositional and post-depositional processes at the archaeological site. Crusts and patina were found to be numerous and diverse, mainly composed of calcite and siliciclastic grains, with different proportions and textures. The analysis indicated different origins and scenarios from their initial post-mortem accumulation to the final deposit recovered during the archaeological work. The presence of micromorphological features, such as clotted-peloidal micrite, needle-fibre calcite (NFC) aggregates, clay coatings, iron–manganese impregnation, and/or adhered aeolian dust may indicate that a significant proportion of the remains were affected by subaerial conditions in a relatively short period of time in a shelter, cave entrance, or shallower level of the karstic system, prior to their accumulation in the Ossuary Gallery.