Limpar
13 resultados

Acesso aberto

Tipo do recurso

Ano de criação

Produção nacional

Revisado por pares

Áreas

Idioma

Editores

Artigo Acesso aberto Revisado por pares

Javier Lario, Sergio Sánchez Moral, Soledad Cuezva, M TABORDA, Vicente Soler,

Castañar de Ibor (Caceres, Spain) is a low energy cave showing very high micro-environmental stability throughout the annual cycle and minimum rates of energy exchange with the atmosphere. The radon (222Rn) levels monitored inside Castañar cave reached 50,462 Bq m−3 in April 2005 and had an annual average of 32, ...

Tópico(s): Geological Formations and Processes Exploration

2006 - Elsevier BV | Atmospheric Environment

Artigo Acesso aberto Revisado por pares

Ángel Fernández‐Cortés, Sergio Sánchez Moral, Soledad Cuevza, Juan Carlos Cañaveras, Rafael Abella,

... changes in environmental conditions. High-accuracy monitoring of Castañar de Ibor cave (Spain) determined the temporal evolution of the ...

Tópico(s): Groundwater and Isotope Geochemistry

2009 - Società Speleologica Italiana | International Journal of Speleology

Artigo Revisado por pares

Ángel Fernández‐Cortés, Sergio Sánchez Moral, Soledad Cuezva, David Benavente, Rafael Abella,

Abstract Variations of carbon dioxide and radon content of cave air are presented as key parameters to assess the outgassing and isolation processes of a subterranean atmosphere. An exhaustive monitoring in the Castañar cave determined the temporal evolution of CO 2 and 222 Rn levels over a 12‐month period, in order to characterise the mechanisms of these microclimatic processes. Concentrations of both gases show both seasonal variations and short‐term fluctuations depending on several climatic ...

Tópico(s): Subterranean biodiversity and taxonomy

2010 - Wiley | International Journal of Climatology

Capítulo de livro

Rebeca Martín‐García, Andrea Martín-Pérez, Ana María Alonso‐Zarza,

In Castañar cave the surface of most of the speleothems present dissolution and corrosion features. In touristic caves, this process has usually been related to the acidification of the atmospheric moisture caused by CO2 from the breath of visitors. However, in Castañar cave the process of corrosion has been also observed in rooms that are not visited by tourists. Petrological studies were carried out in the speleothems affected by surface corrosion in Castañar cave. The results indicate that this ...

Tópico(s): Conservation Techniques and Studies

2010 - Springer Nature | Environmental earth sciences

Artigo Acesso aberto

David Lagar Timón, Ramón García Marín, Manuel Pulido Fernández,

... Entre ellos pueden ser destacados la Cueva del Castañar de Ibor, el Sinclinal de Santa Lucía o el Nacimiento ...

Tópico(s): Archaeological and Historical Studies

2013 - University of Alicante | Investigaciones Turísticas

Artigo Acesso aberto Revisado por pares

J. Javier Álvaro, Iván Cortijo, Søren Rosendal Jensen, Saturnino Lorenzo, Agustín Pedro Pieren Pidal,

... mediante contacto disconforme con el Grupo mixto de Ibor (Formaciones de Castañar, Villarta y Arrocampo) o la Formación siliciclástica del Cíjara. El contenido fósil del Grupo de Ibor incluye sabellidítidos, vendoténidos, macrofitas, bioacumulaciones y arrecifes con ...

Tópico(s): Geological and Geochemical Analysis

2019 - Spanish National Research Council | Estudios Geológicos

Artigo

María Josefa Herrero Fernández, Andrea Martín Pérez, I. Gil-Peña, Ana María Alonso‐Zarza, Alfonso Meléndez Hevia, Rebeca Martín García,

... of Upper Proterozoic –Lower Cambrian deposits of the Castanar de Ibor allows the characterization of the diagenetic history of ...

Tópico(s): Archaeological and Historical Studies

2010 - | Geogaceta

Artigo Revisado por pares

Alena Nováková, Petr Sedlák, Alena Kubátová, Michal Tomšovský,

... underground gallery wall. H. parviporum recorded from Spain, Castaňar de Ibor Cave, was obtained far from the natural distribution ...

Tópico(s): Fungal Biology and Applications

2015 - Wiley | Forest Pathology

Artigo Acesso aberto Revisado por pares

Søren Rosendal Jensen, J. Javier Álvaro, Teodoro Palacios,

... características del tránsito Ediacárico-Cámbrico entre Guadalupe y Castañar de Ibor, al norte del Geoparque de Villuercas-Ibores-Jara ( ... detallan los afloramientos (i) de las formaciones de Castañar y Villarta (Grupo de Ibor, Ediacárico terminal y Terreneuviense), junto a su contenido ...

Tópico(s): Geological and Geochemical Analysis

2019 - Spanish National Research Council | Estudios Geológicos

Artigo

Rebeca Martín García, Ana María Alonso‐Zarza, Andrea Martín Pérez,

The aragonite and calcite speleothems of the Castanar de Ibor Cave show white and matt coatings that formed by micritization and dissolution of the initial crystals. These processes are also recognised in the ...

Tópico(s): Archaeological and Historical Studies

2007 - | Geogaceta

Artigo

Ana María Alonso‐Zarza, Andrea Martín Pérez, I. Gil-Peña, Esperanza Martínez Flores, Pedro Muñoz Barco,

The Castanar the Ibor Cave formed by dissolution of the Precambrian dolostone beds of the Ibor Group. The cave contains a variety of calcitic and aragonitic speleothems, and also moon-milk deposits composed of huntite, dolomite and minor hydromagnesite. Both huntite and dolomite tend to form spheroidal structures. Huntite formation occurred mostly on microbial films that in part corrode the speleothems. Spherulites of dolomite could form later on by transformation of the previously formed huntite, ...

Tópico(s): Geological and Geophysical Studies Worldwide

2005 - | Geogaceta

Artigo Revisado por pares

Sören Jensen, J. Javier Álvaro, Teodoro Palacios Medrano,

... caracteristicas del transito Ediacarico-Cambrico entre Guadalupe y Castanar de Ibor, al norte del Geoparque de Villuercas-Ibores-Jara ( ... of the Ediacaran-Cambrian transition between Guadalupe and Castanar de Ibor, north of the Villuercas-Ibores-Jara Geopark (Caceres), are described and illustrated here. The outcrops of (i) the Castanar and Villarta formations (Ibor Group, terminal Ediacaran and ...

Tópico(s): Geological and Tectonic Studies in Latin America

2019 - Spanish National Research Council | Estudios Geológicos