Esperanza Fernández-Martínez

Esperanza Fernández-Martínez
Universidad de León | UNILEON · Department of Geography and Geology

PhD

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172
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Publications

Publications (172)
Article
This paper focuses on the conservation of geological heritage sites and specifically on the assessment of the risk of degradation. A review of the relevant literature shows (a) a lack of a standardised terminology used by different authors and (b) a lack of a standard methodology that supports the recognition and prevention of threats affecting a g...
Conference Paper
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The genus Syringoalcyon was named in 1945. Its taxonomic assignment as well as its ecologic implications have been a matter of discussion for a long time. Detailed morphological, microstructural, nanostructural, geochemical and crystallographic analyses allow a closer approach to characterization of Syringoalcyon. Samples from several locations and...
Article
This paper presents a Spanish terminology proposal for concepts related to the management of Geosites, and more specifically, to degradation risk assessment of such sites. The terms were selected following an analysis of previous studies on geological heritage and of words commonly used in nature conservation. Furthermore, they are used in accordan...
Conference Paper
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Situada en la vertiente sur de la Zona Cantábrica, la provincia de León contiene abundantes y diversos materiales continentales de edad Carbonífero que han sido tradicionalmente explotados para la obtención de hulla y antracita. Dicha explotación, iniciada en la segunda mitad del siglo XIX y que actuó como un importante motor económico de la región...
Article
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La provincia de León (NO de España) posee un importante patrimonio paleontológico dentro del cual destaca el ligado a los afloramientos de edad Carbonífero. Sin embargo, la Comunidad Autónoma de Castilla y León no ha desarrollado ninguna normativa especial relativa al patrimonio paleontológico, manteniéndose estos materiales en una situación legalm...
Article
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Este trabajo aborda la problemática de la gestión de aquellos yacimientos paleontológicos en Castilla y León que han sido inventariados como Lugares de Interés Geológico (LIG) y que, por tanto, forman parte del patrimonio natural geológico. Para ello, se expone brevemente la problemática relacionada con la normativa autonómica. Posteriormente, y a...
Article
Full-text available
En este trabajo se contextualizan, describen y valoran dos tipos de actividades de campo realizadas en la provincia de León (España), cuyo objetivo principal es la divulgación geológica dirigida a un público adulto y no especializado, en su mayoría habitantes del mundo rural. La primera de ellas es un recorrido en autobús por el valle del río Curue...
Conference Paper
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Cueva de Llamazares is a karstic cavity located at 1400 m above sea level, in the southern part of the Cantabrian Mountains (León, Spain). Initial geochemical evidence and the estimated chronological range for the formation of the cavity and the sedimentary deposits suggest a good record of the changes in the climate and landscape. Among the study...
Research
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This brochure focuses on the Llamazares cave (municipality of Valdelugueros, Cantabrian area, province of León). It presents some general features of the cave and updates data on the research that is currently being carried out.
Article
Although most work on geological heritage focuses on sites, geological objects, usually organized as collections, also belong to this heritage. Among paleontological collections, it is common to find sets of fossils gathered in historical times or by amateurs. In many cases, these fossils lack detailed information about their precise provenance, wh...
Article
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The Cantabrian Zone (N of Spain) is characterized by an occurrence of Palaeozoic age materials, mainly belonging to the Devonian and Carboniferous. Among the different lithologies, certain facies contain black chert and radiolarite in a total of 13 geological formations. Textural (de visu, stereomicroscope and thin sections), mineralogical (X-ray d...
Article
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En este estudio se describen por primera vez dos corales tabulados del Ordovícico de la Precordillera Argentina. Se trata de un ejemplar asignado a aff. Paleofavosites sp., procedente de la formación Las Aguaditas y otro clasificado como ?Billingsaria sp., procedente de la Formación Las Plantas, ambos del Caradoc. La escasez del material y detalles...
Article
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This paper comprises a detailed systematic study of material corresponding to Tabulate corals found in the Upper Emsian (Lower Devonian) strata of the locality of Colle, on the southern slope of the Cantabrian Mountains (NW Spain) which is assigned to a new species of the genus Praemichelinia. This species is characterized by the large size attaine...
Article
This paper describes and analyzes several activities to disseminate geology carried out in the province of León (Spain) between 2017 and 2019. For their presentation, they are grouped in three categories that take into account both their periodicity and the type of sponsoring entities. The diffusion tool Canal GEO is presented, which has helped to...
Article
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This work aims to document three historical paleontological collections of Cenozoic vertebrate fossils from the Leon province. Specifically, those published by Gómez de Salazar (1850), Gago Rabanal (1910) and Royo y Gómez (1930). After decades of being lost, the first two have been found in two different institutions of the city of León. A provisio...
Book
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https://publicaciones.unileon.es/product/paseo-por-la-candamia-y-el-bajo-torio-geologia-y-huella-humana/ Cuadernillo de campo repleto de ilustraciones, esquemas y fotografías a todo color, que nos descubre, mediante la propuesta de realización de pequeños itinerarios, las características geológicas de la zona conocida como La Candamia y del cauce...
Conference Paper
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Miocene mammals of the Duero basin represent one of the lesser-studied fossil records of Spain. This situation is especially marked in provinces such as Leon, where this work is based. Taking as a starting point the previous thorough review of all the specimens and fossil sites of this area (e.g. Laguna de Negrillos, Santalla del Bierzo and Urdiale...
Article
Caves are one of the most spectacular elements of karst with a high natural value, due to their singularity and high diversity of natural features. The Picos de Europa National Park (Spain) is a high mountain protected area that represents the highest density of deep caves of the World (12 deep caves/km²). This work analyses geoheritage linked to t...
Conference Paper
Full-text available
Aproximadamente el 50% de la provincia de León está constituida por materiales del Cenozoico (principalmente Mioceno, Pleistoceno y Holoceno) pertenecientes a la cuenca del Duero-Almanzán. Esta extensión representa el 15% de dicha cuenca, comprendiendo los materiales cenozoicos situados más al NW de la Península Ibérica. A pesar de lo característic...
Article
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Este número de la revista SJP está dedicado a recoger diferentes perspectivas sobre los fósiles y los yacimientos paleontológicos desde el punto de vista del patrimonio. El patrimonio paleontológico comprende aquellos yacimientos y fósiles a los que se ha otorgado un valor cultural, sea de tipo científi co, educativo o recreativo. Como tal patrimon...
Article
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This work introduces a comparative collection located in the Prehistory Laboratory at the University of León (Spain) specialised in knappable raw materials, mainly comprising radiolarite and black chert (micro-crypto crystalline quartz), from the western Cantabrian Mountains (north of Iberian Peninsula). A standardised protocol of sample collection...
Article
Most Alcyonacea (subclass Octocorallia) have skeletons made up of small calcareous pieces called sclerites that are difficult to both preserve and recognize, which explains the scarce and irregular fossil record of the group. In this work, we study 56 geological samples bearing Syringoalcyon, a genus constituted by Alcyonacea represented by sclerit...
Conference Paper
Full-text available
Se realiza un análisis de la vulnerabilidad natural por crecimiento de líquenes producida en una pared de areniscas con moldes externos de braquiópodos. Esta pared está situada en un Lugar de Interés Geológico con valor provincial y vocación docente. En la sección estudida, la presencia de estos fósiles es importante para reconocer una laguna estra...
Article
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El objetivo fundamental del patrimonio debe ser la conservación, entendiendo por tal la preservación del valor del lugar u objetos considerados como tales, y su utilización con fines culturales (bien sean de investigación, enseñanza a diferentes públicos o turismo). En el caso del patrimonio paleontológico, una buena gestión del mismo implica conoc...
Chapter
En este capítulo se analizan los fósiles y los yacimientos paleontológicos desde la óptica de su valor como patrimonio natural. Para ello, se introduce el concepto de fósil, enfatizando su interés científico y social. Además, se repasan brevemente los conceptos básicos del patrimonio: elemento, valor y gestión, haciendo énfasis en las diferentes ca...
Article
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Los fósiles son objetos naturales con un importante valor cultural ya que proporcionan información científica, al mismo tiempo que deleite intelectual y estético. Sin embargo, los marcos legales que amparan el patrimonio paleontológico, tanto si proceden del patrimonio cultural como si están relacionados con el patrimonio natural, se han mostrado i...
Article
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This paper presents the preliminary results of a project aimed at establishing a system of geoindicators to manage the geological heritage in Spanish National Parks. The results presented here are summarized in two supplementary actions. The first one is an inventory of geological sites (LIG) in the Picos de Europa National Park. Some criteria such...
Article
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A study of the chert nodules found in the Escalada Formation (Carboniferous, Ponga region, Cantabrian Zone) was carried out as a means to characterise a number of lithic raw materials found in several prehistoric sites of the Cantabrian Mountains (NW Spain). This study comprises fieldwork aimed at locating the outcrops and obtaining samples. Some s...
Article
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Elaboración y aplicación en el aula de líneas temporales para la enseñanza del tiempo en geología
Research
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Guía de campo de la excursión a las facies arrecifales del Devónico de Cabo de Peñar (norte de la Cordillera Cantábrica)
Article
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The journal “Enseñanza de las Ciencias de la Tierra (ECT)” (Teaching Earth Sciences) came into existence 25 years ago. During this time, its main purpose has been to respond to the demands of geology teachers at all education levels, but having in mind, above all, the secondary school and university teachers working with trainee teachers. Like all...
Article
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En este trabajo se realiza una revisión de los datos disponibles sobre los diferentes tipos de sílex (sílex, chert y radiolaritas) y de algunas pizarras sensu lato utilizados para la talla durante la Prehistoria en el cuadrante Noroeste de la Meseta Norte, entendida como el territorio que abarca toda la cuenca hidrográfica del Duero. Se ha comenzad...
Article
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Este artículo analiza el papel jugado por los elementos geológicos en los movimientos de conservación de la naturaleza. La gea estuvo muy presente en los inicios del conservacionismo, cuando la naturaleza se valoraba por el disfrute estético, emocional y, sólo en algunos casos, intelectual, que proporciona. Durante el siglo XX, la visión de la natu...
Conference Paper
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Presentación en el enlace: http://prezi.com/akn-nipxpddt/?utm_campaign=share&utm_medium=copy
Article
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RESUMEN Se presenta una revisión de los datos disponibles sobre el uso de las materias primas líticas adscritas al grupo del " sílex " desde un punto de vista arqueológico genérico y que han sido utilizadas en la talla lítica a lo largo de la Prehistoria en esta zona de la Cuenca del Duero. En este grupo se incluyen tanto los sílex pro-piamente dic...
Article
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Geoheritage conservation requires correct classification, appropriate valuing, and efficient management of the geological elements under consideration. We herein develop several fundamental ideas on geoheritage value, in an attempt to systematise concepts, so that, through better understanding their significance, the use of these concepts may be ea...
Article
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One of the basic parameters to be considered in geoheritage management is the valuation of its different elements (sites or objects). In this sense, and always bearing in mind that any assessment is a subjective process that depends on the moment, place and human group that develops it, it is important to standardize the assessment criteria to be a...
Conference Paper
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A pioneering palaeontological interpretation centre – first of its kind in Europe – has recently been set in the heart of the Luna River Valley, a unique natural site in the north of the León Province (N Spain). Located up in the Cantabrian Mountains, the natural heritage of the area is extraordinary, being protected as a natural park. The centre i...
Article
The taxonomic assignation and ecological implications of the genus Syringoalcyon Termier & Termier, 1945 have been a palaeontological problem for a long time. Carboniferous material from Morocco and Spain has been studied using a biomineralogical approach by means of petrographic microscopy, SEM, AFM, EMPA and CIP microscopy analysis. Detailed morp...
Article
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This paper focuses on the management of geological heritage and particularly on the anthropic activities that stress these geological sites. Anthropic threats to geoheritage arise from two main sources: public use and the anthropic vulnerability of a geosite. Threats from public use include mining, quarrying, infrastructure construction, conflicts...
Book
Número 18 de la serie cuadernos del museo Geomineroque recoge los trabajos presentados en la IX Sisión científica de la CPG-SGE celebrada en Zumaia del 9 al 13 de Julio de 2015.
Article
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En los siete artículos que contiene este mono-gráfico pueden encontrarse numerosas referencias bibliográficas cuya lectura permite acercarse al patrimonio geológico desde ópticas muy diferen-tes (conceptual, de gestión, inventarios, aplicación docente, etc.). Sin embargo, y puesto que el tema que aquí se trata es novedoso para la mayoría de quienes...
Article
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In recent years there has been an increase in the consideration of geological heritage as a resource that emphasizes the scientific, educational and recreational value of geology. One consequence of this growth is the delimitation of areas with socioeconomic and cultural development strategies that are based on geoheritage sites. This is the case o...
Article
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This paper presents an educational activity for 4º of ESO and 1º of Bachillerato in which students conduct an inventory of sites of geological interest (geosites) in the school surroundings. As with other, previous projects, this proposal employs geological heritage as a tool to enable and enhance understanding of the Earth Science syllabus. At the...
Article
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The so-called “Mucientes chert" is a variety that appears in the central area of the Iberian North Plateau, in theDueroBasin. It is widely known in the geological and archaeological literature and its use for knapping was especially important in Prehistory. From a macroscopic point of view it is a nodular chert, with white and very porous cortex, a...
Article
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Este trabajo describe qué se entiende por una persona alfabetizada en ciencias de la Tierra y selecciona los conocimientos básicos que debería poseer todo estudiante al finalizar la educación obligatoria, de forma que pueda disponer de una idea global sobre cómo funciona el planeta en que vive. Formula las diez ideas clave que sintetizan esos conoc...
Article
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Este trabajo tiene por objetivo desarrollar algunos contenidos del documento español de Alfabetización en Ciencias de la Tierra y más concretamente de la Idea clave 5 La vida evoluciona e interacciona con la Tierra modificándose mutuamente. Para ello se hace un repaso a dos disciplinas emergentes en el estudio de la vida en el pasado: la Tafonomía...