Antonio Rodríguez-Ramírez

Antonio Rodríguez-Ramírez
Universidad de Huelva | UHU · Departamento de Ciencias de la Tierra

PhD. Geomorphology

About

89
Publications
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Introduction
Antonio Rodríguez-Ramírez currently works at the Departamento de Ciencias de la Tierra, Universidad de Huelva. Antonio does research in Geomorphology, Paleoclimatology, Cartography, coastal processes and Quaternary.
Additional affiliations
October 1997 - present
Universidad de Huelva
Position
  • PhD
January 1997 - February 2019
Universidad de Huelva
Position
  • PhD

Publications

Publications (89)
Article
Full-text available
Abstract A detailed pollen analysis has been carried out on two sediment cores taken from a marsh area located in the Doñana National Park, southwestern Spain. The studied sedimentary sequences contain a similar late Holocene record of vegetation and climate and show a progressive aridification trend since at least 5000 cal. yr BP, through a decre...
Article
Full-text available
A multidisciplinary study from a number of drilled cores in the Guadalquivir estuary has made possible to identify as many as three extreme wave events and their facies in the 4th millennium BP (A: ~ 4000 cal yr BP, B: ~ 3550 cal yr BP, and C: ~ 3150 cal yr BP). These events, which caused strong erosion in the Guadalquivir sandy barrier and in the...
Article
Full-text available
The Guadalquivir estuary is one of the most important in Europe. It is isolated from the sea by two important littoral spits (Doñana and La Algaida). Its sedimentary filling occurred as a result of deltaic contributions of the Guadalquivir River, giving rise to marshes primarily composed of mud deposits, among which a succession of sandy and shelly...
Chapter
Research in the Guadalquivir estuary and its environs has revealed evidence of a periodic succession of extreme-wave events in the area from the third millennium BC to the third century AD. Return periods range from 400 to 800 years. Some of these extreme-wave events may have had a magnitude comparable with that of the so-called “Lisbon earthquake”...
Poster
Full-text available
Hominin footprints represent a unique vestige giving access to brief moments of life, an unusual time scale in archaeology or palaeoanthropology. They provide information not only on the locomotor behaviour of individuals (locomotor anatomy including soft tissue, motion capture) but also on the size and composition of the groups that made them, par...
Article
Full-text available
Here, we report the recent discovery of 87 Neandertal footprints on the Southwest of the Iberian Peninsula (Doñana shoreline, Spain) located on an upper Pleistocene aeolian littoral setting (about 106 ± 19 kyr). Morphometric comparisons, high resolution digital photogrammetric 3D models and detailed sedimentary analysis have been provided to charac...
Article
Full-text available
La découverte d’une mandibule néandertalienne dans la grotte du Boquete de Zafarraya en1983, fut à l’origine de l’extraordinaire recherche pluridisciplinaire engagée par Cecilio Barroso-Ruíz et Henry de Lumley et menée par plusieurs équipes espagnoles et françaises, appartenant à différentes universités et institutions scientifiques.
Article
Here we developed and validated a new Benthic Foraminiferal Salinity (BFS) index from marginal-marine environments by analysing benthic foraminifera from the Holocene Guadalquivir estuary sediments (SW Spain). This index is formulated utilising only four species: Ammonia tepida and Haynesina germanica with higher tolerance to brackish waters and in...
Chapter
Full-text available
The estuary of the Guadalquivir River is the largest in the Gulf of Cadiz, covering an area of some 185,000 ha. From a geological standpoint, the estuary represents the culmination of the marine filling of the Cenozoic Guadalquivir Basin. The present-day configuration of the estuary is the result of the post-glacial transgression of the Atlantic Oc...
Chapter
Full-text available
The Huelva Coast forms the littoral sector of the SW Iberian Peninsula which extends from the mouth of the Guadiana River, on the border with Portugal, to the mouth of the Guadalquivir River. From a physiographic point of view, the Huelva Coast can be considered a linear, low and sandy coast formed by long beaches, although it could be divided in d...
Article
A multi-proxy palaeoenvironmental study (pollen, non-pollen palynomorphs, charcoal particles, mollusk mac-rofauna) of coastal marshland in Doñana National Park (southwestern Iberian Peninsula) was undertaken to trace environmental change, human activities related to woodland clearance, and past land-use during the mid-late Holocene (~5000-2800 cal...
Chapter
This monograph presents the state of art of the geologic knowledge about the Spanish coast obtained through scientific research in the last 30 years. From a general point of view, coasts are the most quickly changing systems of the Earth. This is critical, since many human resources, such as the main part of economic and social activities, are loca...
Article
Full-text available
This paper describes and interprets the internal structure of the Aeolian dunes developed in two profiles of the coastal front of the Doñana spit using subsurface images recorded by Ground Penetrating Radar. The inside of these dunes shows two different types of internal structure. Some strings have a clear structure of stacking of through cross be...
Preprint
Full-text available
A remarkable feature of the geomorphological processes at work on the coasts of the Gulf of Cadiz in SW Iberia is the estuarine mouths of a number of large-flowing rivers: Guadiana, Piedras, Tinto-Odiel, Guadalete and Guadalquivir. These mouths exhibit sandy barriers and marshlands. Over the most recent millennia, these five estuaries have been con...
Chapter
Full-text available
La Geomorfología de las Marismas del Guadalquivir se caracteriza por las barras de meandro y de desbordamiento fluvial, constituyendo la marisma alta, donde domina Artthrocnemum Macrostachyum y Suadea vera. La marisma topograficamente más baja, dominada por Scirpus, se localiza en las áreas interfluviales. En esta se extienden enormes superficies d...
Chapter
Full-text available
There are reasons other than biological and environmental to argue for the preservation of Doñana National Park—reasons which are geological, archaeological, and anthropological. Up until the establishment of Estación Biológica of CSIC, the lower Guadalquivir River basin was home to a human community adapted to the rich, varied resources of a marsh...
Book
Full-text available
PRÓLOGO Hasta no hace muchas décadas en un rincón del Bajo Guadalquivir se encontraba una de las últimas fronteras de la naturaleza Europea. Un lugar donde el abrazo entre el río Guadalquivir y el mar configuró a lo largo de miles de años unas extensas llanuras de una extraordinaria singularidad, engalanada con anchos paciles y múltiples vetas repl...
Article
Full-text available
During the1980s several attempts were made to classify beaches according to their morphodynamic behaviour. Published papers proposed classifications based mainly on wave incident energy and beach characteristics, such as foreshore slopes and sediment settling velocities. In the 1990s more complex classifications appeared, where the effect of tides...
Article
Full-text available
RESUMEN En los años ochenta se realizaron una serie de trabajos destinados a clasificar morfodinámicamente las pla-yas. Dichas clasificaciones utilizaban fundamentalmente las condiciones energéticas del oleaje incidente, así como variables propias de la playa, como la pendiente o la velocidad de caída de grano. Posteriormente, a este tipo de clasif...
Article
Full-text available
The estuary of the Guadiana River is located in the southwestern Iberian Peninsula and serves as border between Spain and Portugal for more than 40 km. This estuary consists of a narrow rock bounded channel with meandering morphology imposed by the geologic materials. Its mouth is affected by a mesotidal regime, with tidal ranges comprised between...
Conference Paper
Full-text available
The configuration of the Huelva coast is the result of the gradual ascent of the sea level during the present interglacial (transgression Flandriense). Once reached the transgressive maximum (6500 years BP), the dynamics generated favoured the regulation of the coastal profile. The systems of spits bars of this coast have been built during phases o...
Chapter
Full-text available
Una de las características más destacables de las Marismas de Doñana es el gran volumen de agua superficial almacenada en los meses invernales, dando lugar a una gran biodiversidad. Sin embargo estos episodios de abundancia hídrica dejan paso a periodos donde esta brilla por su ausencia, en duras y prolongadas sequías. Al igual que otros elementos...
Conference Paper
Full-text available
From a depositional point of view, tsunami deposits can be defined as high-energy event sequences, generated by highly energetic dynamic processes involving a high degree of erosion and transport of sediments. Tsunamis are waves induced either by plate tectonics or by the impact of meteorites or large underwater landslides. They are characterized b...
Chapter
Full-text available
The geomorphological and stratigraphic study of the marshes of Doñana National Park has revealed neo-tectonic activity during the Late Holocene. Anomalous drainage systems and relict surfaces show alignments in NE-SW and NW-SE directions. Analysis of a 12 m core has allowed the authors to identify coastal formations that are now buried under 6 m of...
Chapter
Full-text available
El presente trabajo estudia la distribución de fondos sedimentarios en el frente deltáico del río Guadalquivir mediante la utilización de Sonar de Barrido Lateral. Cada uno de los tipos de fondo diferenciados se he caracterizado de acuerdo con su respuesta acústica, que es reflejo de su litología y los rasgos visibles en su superficie, especialment...
Chapter
Full-text available
Una de las características más notables del litoral onubense es su suave orografía y la sucesión de amplios entrantes marinos asociados a las desembocaduras de los ríos principales. El elevado dinamismo y la gran disponibilidad de materiales permiten que se desarrolle un litoral particularmente activo, con grandes formaciones arenosas en continua e...
Article
It is paradoxical that work in question (Rodríguez-Ramírez and Yánez-Camacho, 2008) has started a debate in the scientific community about the values of the reservoir effect used in the 14C dates in the Gulf of Cádiz, since in their Comments Rodríguez-Vidal et al. (2009), Monges Soares (2010-this issue) and Lario et al. (2010-this issue), have not...
Article
The application of the regional reservoir effect (ΔR) on the South Atlantic coast of Iberia requires adjustments, as a result of the variations it has undergone throughout the Holocene. Since 1996, a constant value of − 440 ± 84 14C yr has been used [Dabrio, C.J., Zazo, C., Lario, J., Goy, J.L., Sierro, F.J., Borja, F., González, J.A., Flores, J.A....
Article
Full-text available
The present paper characterizes the distribution of sediments and geo-forms in a tidal channel within the Guadiana River Mouth using Side Scan Sonar techniques. This work presents a map of bed distribution in terms of sedimentary lithology and geomorphological features. From a lithological point of view clean sands, muddy sands and sandy muds can b...
Chapter
Full-text available
La urbanización de Matalascañas es uno de los centros turísticos más importantes de la costa de Huelva, gracias al atractivo de sus playas y su entorno natural (Doñana). De forma natural los problemas erosivos en esta costa han sido intensos, tal como lo demuestran datos históricos (torres de almenara) y geológicos. En el año 1979 se lleva acabo la...
Chapter
Full-text available
Las marismas del Parque Nacional de Doñana son unas de las zonas húmedas más importantes del mundo. En las últimas décadas han experimentado una preocupante degradación como resultado de la alteración de sus cuencas vertientes. Estos procesos han repercutido en la transformación de su dinámica hídrica, dando lugar a una pérdida cuantitativa y cuali...
Article
Full-text available
Full Title: Discussion on the paper: "The geological record of the oldest historical tsunamis in southwestern Spain" by Francisco Ruiz, Manuel Abad, Joaquín Rodríguez Vidal, Luis Miguel Cáceres, María Luz Gonzàlez-Regalado, María Isabel Carretero, Manuel Pozo & Francisco Gómez Toscano, published in rivista Italiana di paleontologia E stratigrafia,...
Article
Full-text available
The Huelva coast is composed by large sandy beaches and spits, only interrupted by the presence of the estuarine mouths of the Guadiana, Piedras, Tinto-Odiel and Guadalquivir which are in an advanced state of sediment infilling. The morphology and processes of the Huelva coast are mainly linked to tidal regime, wave action, coastal-drift currents,...
Chapter
Full-text available
RESUMEN Las clasificaciones de estados morfodinámicos de playa se basan principalmente en las características del olea-je, la marea y la pendiente y tamaño de grano de la playa. En este trabajo se presenta un programa de seguimiento de playas, en el cual se han monitorizado durante varios años más de 30 playas ubicadas a lo largo del Golfo de Cádiz...
Article
Full-text available
Mapping coastal proceses and landforms is a pressing need for modern society because of the high population pressure on the coastal zone. Map the coast requires a combination of surface geology, geomorphology and information on coastal processes. This paper describes the cartography of active processes in a segment of the Huelva coast. In general,...
Conference Paper
In recent years, numerous studies have focussed on the geological evolution of coastal areas, with the description of sucessive palaeogeographical phases inferred from geomorphological, sedimentological, faunal and/or mineralogical changes observed in box cores. Additional researches have analyzed the geological record of past high-energy events (t...
Article
Within an extensive multinational and multidisciplinary project carried out in Doñana National Park (Spain) to investigate its preservation and regeneration, the filling velocity of the salt marshes has been evaluated through the calculation of their average sediment accumulation rates. (239+240)Pu and (137)Cs from weapons testing fallout and total...
Article
Full-text available
Este trabajo se basa en el análisis polínico de tres testigos de sedimento obtenidos en el sector sur de Doñana y correspondientes al Holoceno reciente. Se observa cómo los cambios ocurridos en la vegetación au-tóctona marismeña durante el Holoceno están controlados primordial-mente por la dinámica geomorfológica del medio, lo cual hace que los mod...
Article
Four phases are distinguished in the Mid-Holocene evolution of the southwestern Doñana National Park (SW Spain), based on the multidisciplinary study of sediments in drill cores. In the oldest phase (> 5500–5400 cal. years BP), a coastal, brackish lagoon occupied the central part of the study area, partly enclosed by the Doñana spit and limited by...
Article
Full-text available
In April 1998, the Aznalcllar mine tailings dam spilled 2 hm3 of slurry and 4 hm3 of acid waters into the Agrio River (affluent of the Guadiamar River). The pollutants reached the proximity of the Doana National Park, 60 km downstream. The state of contamination of groundwaters and surface waters, from several samplings made subsequent to the spill...
Chapter
An evaluation of critical storm period periodicity may be interesting for managing numerous coastal tourist areas. For this purpose, the treatment of the meteorologic data needs to be rigorous with the application of time series analysis. In this article, we analyze some mathematical procedures for resolving these problems, subsequently applied to...
Article
Full-text available
Resumen: Las marismas del Parque Nacional de Doñana son una de las zonas húmedas más importantes del mundo. En los últimos cincuenta años han experimentado una preocupante degradación como resultado de la intensa colmata-ción, que ha repercutido en la transformación de sus características ecológicas. En el presente trabajo se analiza dicha colmatac...
Article
Four phases are distinguished in the Late Holocene evolution of the southwestern Doñana National Park (SW Spain), based on a multidisciplinary analysis of the sediments present in drill cores. In the oldest phase (>2400–2500 cal. yr BP), a coastal lagoon (the Roman Lacus Ligustinus) was recognized in the central part of this area, partly closed by...
Article
Full-text available
Resumen El análisis de los ostrácodos extraídos en dos testigos tomados en el sector sudoccidental del Parque Nacional de Doñana permite deducir su evolución durante el Holoceno Superior. En los últi-mos 2.400-2.300 años BP se ha producido la transición desde un lagoon, habitado básicamente por Cyprideis torosa (Jones), Loxoconcha elliptica (Brady)...
Article
Ostracods are microcrustaceans that grow by moulting (eight to nine instars in most cases) and, consequently, studies of its populations need the application of some special techniques. The population age structure techniques [Whatley, in: Ostracoda in the Earth Sciences, 1988, pp. 245–256] are a simple statistical method to estimate paleoenvironme...
Article
This work compares the geomorphologic evolution of the Huelva coast (SW Spain), some climatic-oceanographic data of the Cádiz Gulf and the recent storm record of this zone, covering the last 4 decades (1956-1996). An interesting correlation was found between the southwestern wind periodicity, the number of storm periods and the beach ridges observe...
Article
Three steps have been established during the Holocene formation of the bar-built estuary of Las Nuevas (Doñana National Park, Spain), on the basis of the clay mineralogy variations and the palaeontological record. The first step is characterized by the presence of ostracodes and homogeneous quantities of clay minerals (17–20% illite, 25–29% smectit...