Listar REV - CLXL - Vol. 23 (1998) por título
Mostrando ítems 1-18 de 18
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A 12,000 yr δ13C and δ15N isotopic record from Amboromena, Andringitra Massif, in Madagascar
(Universidade da Coruña, 1998)[Abstract] Profiles of percent carbon, nitrogen and phosphorus, carbon/nitrogen (C/N) ratios, percent organic matter and carbonates, and stable carbon (δ13C) and nitrogen (δ15N) from a 176 cm core were used to reconstruct ... -
A influência da fracturação na exploração de rochas ornamentais: o caso do granito de Pedras Salgadas (Vila Real, Norte de Portugal)
(Universidade da Coruña, 1998)[Abstract] The exploitation of ornamental granite in Pedras Salgadas region is limited by the regional fault pattern, which is formed by three sets of principal faults. Based upon the joint spacings measurements, the medium ... -
A population study on the Cave Bears (Ursus spelaeus Rosenmüller-Heinroth) from Galician caves, NW of Iberian Peninsula
(Universidade da Coruña, 1998)[Abstract] A population study of two contemporary sites of Ursus spelaeus from Serra do Courel (Galicia, NW of Iberian Peninsula) has been carried out. The different morphology of the sites, as well as the taphonomical ... -
Biogeoquímica isotópica (δ13C, δ15N) del Ursus Spelaeus del yacimiento de Cova Eiros, Lugo.
(Universidade da Coruña, 1998)[Abstract] The Cova Eiros site (Galicia, Spain) has been studied using the Stable Isotope Ratio Mass Spectrometry (SIRMS) technique. Bones from adult, juvenile and neonate bears have been analysed in order to measure their ... -
El campo pegmoaplítico de Doade (Ourense) y sus mineralizaciones de Sn y Ta asociadas
(Universidade da Coruña, 1998)[Abstract] This paper deals with the analysis of the geology and structure of the pegmoaplitic field of Doade (Ourense, Spain). Several bodies are distinguished taking into account their mineralogy and spatial distribution. ... -
Datos sobre Cervus elaphus (Cervidae, Artiodactyla, Mammalia) en cavidades cársticas de Galicia (NW España)
(Universidade da Coruña, 1998)[Abstract] A review of the data about Cervus elaphus from galician caves is carried out in this paper. Some of these caves present a deposit of bone remains with anthropic origin, but one of them does not seen to have been ... -
Elaboración de modelos de elevación digital empleando técnicas geoestadísticas y sistemas de información geográfica
(Universidade da Coruña, 1998)[Abstract] The main objective of this study was to examine topographical information by means of geostatistical techniques. Moreover, the spatial dependence of point measurements was used in order to assist in making digital ... -
Estudio multivariado del micromodelado granítico: Interpretación comparada de la génesis y evolución de la gnammas en macizos antiguos
(Universidade da Coruña, 1998)[Abstract] Statistic analysis results of two microforms samples from differentiated geomorphic environment (Ourense, Galicia, Spain) are displayed in this paper. Explanation test recent contributions about the genesis and ... -
Evolución geomorfológica del macizo Hespérico Peninsular: estudio de un sector comprendido entre las provincias de Lugo y Ourense (Galicia, NW de España)
(Universidade da Coruña, 1998)[Abstract] This paper deals with the relief generation in Ourense, an interior territory of the Galicia Country, at NW Spain, after the breakdown of Pangea 200 million years ago. The rupture of supercontinent causes the ... -
Explotaciones romanas y mineralizaciones de oro en el sector de San Pedro de Olleros (El Bierzo, León)
(Universidade da Coruña, 1998)[Abstract] The gold mining in the Bierzo Region, NW Spain had great importance, not only in the well known Las Médulas site, but also in the north sector of El Bierzo Basin, (San Pedro de Olleros Valle de Finolledo). This ... -
Influencia de las características iniciales de la superficie y la precipitación en la dimensión fractal del microrrelieve del suelo
(Universidade da Coruña, 1998)[Abstract] The complex behavior of soil surface microrelief and its evolution is difficult to quantify. Several empirical roughness indices and geostatistical procedures currently used have been found to be sensitive to ... -
Influencia del contenido en materia orgánica sobre las propiedades físicas del sueño
(Universidade da Coruña, 1998)[Abstract] Soil physical characteristics of agricultural soils with a range of texture and organic matter content, i. e., dry and wet pore space organisation, were investigated. In order to study the specific effect of ... -
Locais de interesse para a Arqueologia Mineira do Alto Minho (N de Portugal) Estado actual - métodos de caracterização e estratégias de aproveitamento
(Universidade da Coruña, 1998)[Abstract] Archaeological mining sites in northern Portugal include a few roman gold mines in shear zones and the tin and tungsten mining of the first half of the XX century, widespread through the entire Alto Minho region, ... -
Nota sobre el estudio de ADN antiguo en restos óseos de macromamíferos cuaternarios de Galicia
(Universidade da Coruña, 1998)[Abstract] New biomolecular methods allow us to reach the ancient DNA preserved in fossil bones. This paper shows first extractions of this genetic material in cave bear bones (Ursus spelaeus ) from Galicia (NW Iberian ... -
Preservación de diatomeas en sedimentos turbosos
(Universidade da Coruña, 1998)[Abstract] This paper describes a comprehensive survey of the quality of diatom preservation in the recent sediment record from two close peatbogs but with different geomorphological features, Villaseca and La Mata (NW ... -
Reconstrucción morfosedimentaria y fitogeográfica del tramo medio del río Jarama (Madrid, España) durante la segunda mitad del Holoceno. Estudio preliminar
(Universidade da Coruña, 1998)[Abstract] Two sites located on the alluvial plain of the Jarama River, near Madrid, Spain, have been studied using geological, palynological and xylological techniques. Uniquely for this region, numerous wood subfossils ... -
Relación entre índices de rugosidad: tortuosidad, pendiente límite, distancia límite y rugosidad aleatoria
(Universidade da Coruña, 1998)[Abstract] Soil surface roughness is one of the parameters influencing runoff generation. An amount of 137 roughness measurements under different conditions of tillage and crop were made from March, 1997 to April, 1998. A ... -
Tipologia e evolução dos materiais de neoformação supergénica detectados na escombreira da Mina de Valdarcas (Vila Nova de Cerveira - N Portugal) - Implicações Ambientais
(Universidade da Coruña, 1998)[Abstract] The abandoned waste dump of Valdarcas tungsten skarn deposit — Vila Nova de Cerveira, N Portugal, represents a key site, appropriate to study the environmental problems related to deactivated sulfide tails. The ...