Results 51 to 60 of about 1,932 (208)

Significance of graphite occurrences in the Aracena Metamorphic Belt, Iberian Massif [PDF]

open access: yesGeological Magazine, 2004
The significance of syngenetic and epigenetic graphite occurrences from the Variscan high-temperature/low-pressure Aracena Metamorphic Belt is discussed in the framework of the tectono-thermal evolution of this southern zone of the Iberian Massif. Syngenetic graphite is associated with both low- to medium-grade metamorphic rocks (La Umbría series ...
Crespo Feo, María Elena   +6 more
openaire   +2 more sources

A simple index for assessing cumulative human impacts on mountain lakes

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Mountain lakes are highly sensitive ecosystems and effective sentinels of environmental change, yet the exposure and magnitude of the human footprint remain poorly quantified. In this study, we develop a simple and non‐invasive abiotic index to assess cumulative pressures on mountain lakes. The proposed index integrates eight variables grouped
Clara Sáez   +3 more
wiley   +1 more source

Brittle behaviour of granitic magma: The example of Puente del Congosto, Iberian Massif, Spain

open access: yes, 2000
The magmatic structures appearing in the Puente del Congosto granitic outcrop (central Iberian Massif) are described in this work. They are interpreted as the result of a complex interplay between viscous (Newtonian) and brittle behaviour of granitic ...
Castro, Antonio   +1 more
core   +1 more source

La nieve en los Picos de Europa : implicaciones geomorfológicas y ambientales

open access: yesCuadernos de Investigación Geográfica, 2013
The Picos de Europa massif is the maximun exponent of the Atlantic High Mountain of SW Europe. The present day climate derive initially from its volume and altitude, with peaks of around 2.700 m, and from its geographical location.
J. J. González Trueba   +1 more
doaj   +1 more source

A GIS‐Based Approach to Modeling Carnivore Activity in the Pleistocene Site of Cova del Rinoceront (Iberian Peninsula)

open access: yesInternational Journal of Osteoarchaeology, EarlyView.
ABSTRACT A significant methodological difficulty in the interpretation of Pleistocene zooarchaeological assemblages is the identification of taphonomic agents that modify and break bones. Carnivores, in particular, have been a main focus, as competition with carnivores may have affected carcass acquisition opportunities for humans in the past.
Gerard Terrón‐Marín   +3 more
wiley   +1 more source

Pastoralist views and positions on coexistence with large carnivores. An overview from conflict areas across Europe

open access: yesPeople and Nature, EarlyView.
Abstract While large carnivore expansion is a conservation success, it increasingly challenges pastoralism. Beyond economic value, pastoralism provides critical biodiversity and sociocultural benefits, recognized by the UN and the EU's ‘High Nature Value farming’ designation.
Valeria Salvatori   +3 more
wiley   +1 more source

Mineral chemistry of late Variscan gabbros from central Spain: constraints on crystallisation processes and nature of the parental magmas

open access: yes, 2015
[EN] Major and trace element chemistry has been determined in the main minerals (olivine, orthopyroxene, clinopyroxene, plagioclase, amphibole, phlogopite) from the Talavera and La Solanilla gabbroic intrusions (Spanish Central System). The results show
Jeffries, T. E.   +11 more
core   +1 more source

A synthetic eco‐evolutionary proposal for the conservation of wild relatives of the olive tree

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Societal Impact Statement Crop wild relatives (CWR) are valuable sources of genetic diversity for plant breeding. However, the identification of wild untapped genetic resources (i.e., unexploited in crops) is not always straightforward. We propose a methodology to guide the identification and conservation of these resources that integrates both genetic
Andrés Barea‐Márquez   +6 more
wiley   +1 more source

Coeval interaction between magmas of contrasting composition (Late Carboniferous-Early Permian Santa Eulália-Monforte massif, Ossa-Morena Zone): field relationships and geochronological constraints

open access: yesGeologica Acta, 2017
The Santa Eulália-Monforte massif is a post-kinematic Late Carboniferous-Early Permian calc-alkaline composite massif (LC-EP) located in the Ossa-Morena Zone (OMZ, Portugal).
M.F. PEREIRA, C. GAMA, C. RODRÍGUEZ
doaj  

A framework to evaluate and identify development requirements for land‐surface models at km‐scale resolution: Application to a semi‐arid and mountainous region

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
This article provides a first evaluation of land‐surface models at the km‐scale resolutions at which they are used in weather and Earth‐system models. At these resolutions, the lateral transfers of water that organize landscapes play an important role in predicting evaporation correctly. Riparian processes and human water management for irrigation need
Jan Polcher   +13 more
wiley   +1 more source

Home - About - Disclaimer - Privacy