A5039648497- Geology and Paleoclimatology Research
- Methane Hydrates and Related Phenomena
- Isotope Analysis in Ecology
- Geochemistry and Geologic Mapping
- Seismic Imaging and Inversion Techniques
- Reservoir Engineering and Simulation Methods
- Marine and coastal ecosystems
- Geological formations and processes
- Geological Studies and Exploration
- Marine Biology and Ecology Research
- Archaeological and Geological Studies
- Ocean Acidification Effects and Responses
- Geological and Geophysical Studies Worldwide
- Paleontology and Stratigraphy of Fossils
- Hydrocarbon exploration and reservoir analysis
- Archaeological and Historical Studies
- Mineral Processing and Grinding
- Marine and environmental studies
- Remote-Sensing Image Classification
- Cryospheric studies and observations
- Marine Bivalve and Aquaculture Studies
- Service-Learning and Community Engagement
- Oceanographic and Atmospheric Processes
- Radioactive element chemistry and processing
- Higher Education and Sustainability
Universidad de León
2017-2023
Universidad de León
2013-2022
Universidad de Salamanca
2002-2016
Cardiff University
2008-2011
National Oceanography Centre
2008
University of Southampton
2008
University of Oxford
2008
Station Biologique de Roscoff
2008
University of Washington
2008
Ocean acidification in response to rising atmospheric CO2 partial pressures is widely expected reduce calcification by marine organisms. From the mid-Mesozoic, coccolithophores have been major calcium carbonate producers world's oceans, today accounting for about a third of total CaCO3 production. Here, we present laboratory evidence that and net primary production coccolithophore species Emiliania huxleyi are significantly increased high pressures. Field from deep ocean consistent with...
Down‐core samples of planktonic and benthic foraminifera were analyzed for oxygen carbon isotopes in International Marine Past Global Changes Study (IMAGES) core MD99‐2343 order to study the interactions between climate change Northern Hemisphere western Mediterranean thermohaline circulation at times Heinrich events (HE). Our results confirm antiphase correlation enhanced North Atlantic Deep Water formation low ventilation Mediterranean. However, this reveals that relationship deepwater was...
The depositional history of the Storfjorden and Kveithola trough-mouth fans (TMFs) in northwestern Barents Sea has been investigated within two coordinated Spanish Italian projects framework International Polar Year (IPY) Activity 367, NICE STREAMS. investigation conducted using a multidisciplinary approach to study sediment cores positioned on high-resolution multibeam bathymetry TOPAS/CHIRP sub-bottom profiles. Core correlation age model were based 27 AMS 14C samples, rock magnetic...
The Atlantic‐Mediterranean exchange of water at Gibraltar represents a significant heat and freshwater sink for the North Atlantic is major control on heat, salt budgets Mediterranean Sea. Consequently, an understanding response system to external changes vital full comprehension hydrographic responses in both ocean basins. Here, we use synthesis empirical (oxygen isotope, planktonic foraminiferal assemblage) modeling (analytical general circulation) approaches investigate Exchange...
A partir de mediados del siglo XX, motivado por el aumento exponencial la población urbana mundial, consumo arena y grava para construcción ha experimentado un crecimiento más acelerado a mayor escala que cualquier otro grupo recursos. La constituye uno los recursos básicos lasociedad actual, al ser principal componente hormigón con se construyen infraestructuras proyectos gran envergadura. Sin embargo, es recurso cada vez limitado. extracción descontrolada nivel mundial pone en evidencia...
A multiproxy integrated chronological framework, based on oxygen and carbon stable isotope stratigraphy, biostratigraphy (foraminifera nannoplankton bioevents foraminifer assemblage‐based climate cyclicity), magnetostratigraphy, sapropel 14 C AMS radiometric dates, has been achieved for borehole PRAD1‐2, collected in 185.5 m water depth the central Adriatic. This work was carried out within European Community project Profiles across Mediterranean Sedimentary Systems (PROMESS1). The 71.2 long...
In order to monitor the evolution of British‐Irish Ice Sheet (BIIS) and its influence in surface ocean structure during marine isotopic stages (MIS) 2 3, we have analyzed sediments recovered core MD04‐2829CQ (Rosemary Bank, north Rockall Trough, northeast Atlantic) dated between ∼41 ∼18 ka B.P. Ice‐rafted debris flux composition, 40 Ar/ 39 Ar ages individual hornblende grains, multispecies planktonic stable isotope records, foraminifera assemblage data faunal‐based sea temperatures (SSTs)...
Abstract. Major questions surround the species-specific nature of coccolithophore calcification in response to rising atmospheric CO2 levels. Here we present CaCO3 particle volume distribution data from coccolith size-fraction a rapidly accumulating North Atlantic sediment core. Without direct measurements on coccoliths produced by individual species, and knowledge organic, as well inorganic carbon production, it is not possible state conclusively change at this site. However, analysing size...
Abstract. Records of past warm periods are essential for understanding interglacial climate system dynamics. Marine Isotope Stage 11 occurred from 425 to 394 ka, when global ice volume was the lowest, sea level highest, and terrestrial temperatures were warmest last 500 kyr. Because its extreme character, this interval has been considered an analog next century change. The Bering Sea is ideally situated record how opening or closing Pacific–Arctic Ocean gateway (Bering Strait) impacted...
Understanding the nature, origin, and age of a mélange is crucial to deciphering evolution certain orogenic belts. Located in Cordillera Septentrional Dominican Republic, San Marcos Mélange characterized by blocks-in-matrix internal structure. Apparently arranged chaotically, blocks have centimeter kilometer sizes, include exotic ophiolitic, volcaniclastic, intrabasinal sedimentary lithologies, are Cretaceous Miocene age, all immersed scaly variably sheared argillaceous matrix. In...
Abstract. Major questions surround the species-specific nature of coccolithophore calcification in response to rising atmospheric CO2 levels. Here we present CaCO3 particle volume distribution data from coccolith size-fraction a rapidly accumulating North Atlantic sediment core. These appear indicate that coccoliths produced by larger species at this location increase mass parallel with anthropogenic release. This finding has significant implications for realistic representation an...
<p> </p><p>Resumen</p><p>La metodología docente “service-learning”, como su nombre indica, combina en un proyecto único, servicio a la comunidad con aprendizaje académico relacionado el curriculum del estudiante. En esta comunicación se presentan los resultados obtenidos dos proyectos docentes que han utilizado este método para facilitar estudiantes de Grado adquisición conocimientos significativos y desarrollo habilidades personales sociales difíciles conseguir...