Results 41 to 50 of about 28,696 (234)

Reappraisal of Variscan tectonics in the southern French Massif Central

open access: yesTectonophysics, 2020
Abstract The comprehensive kinematic analysis of the Variscan fold nappes and associated wildflysch in the Southeastern Montagne Noire shows that the nappes were thrust northeastwardly along the Cevennes fault as a result of strike-slip-dominated sinistral transpression between 340 and 323 Ma. Macro- and map-scale recumbent folding and nappe stacking
Chardon, Dominique   +2 more
openaire   +3 more sources

An oxygen isotope record of lacustrine opal from a European Maar indicates climatic stability during the Last Interglacial [PDF]

open access: yes, 2004
The penultimate temperate period, 127–110 ka before present (BP), bracketed by abrupt shifts of the global climate system initiating and terminating it, is considered as an analogue of the Holocene because of a similar low global ice‐volume.
Andrieu, V   +7 more
core   +1 more source

Signature of mid‐Pleistocene lineages in the European silver fir (Abies alba Mill.) at its geographic distribution margin

open access: yesEcology and Evolution, 2021
In a conservation and sustainable management perspective, we identify the ecological, climatic, and demographic factors responsible for the genetic diversity patterns of the European silver fir (Abies alba Mill.) at its southwestern range margin ...
Caroline Scotti‐Saintagne   +5 more
doaj   +1 more source

Multistage development of a hydrothermal W deposit during the Variscan late-orogenic evolution: the Puy-les-Vignes breccia pipe (Massif Central, France)

open access: yesBSGF - Earth Sciences Bulletin, 2021
The Puy-les-Vignes W deposit, located in the northwestern French Massif Central (FMC), is a rare occurrence of a wolframite-mineralized hydrothermal breccia pipe hosted in high-grade metamorphic gneisses.
Harlaux Matthieu   +10 more
doaj   +1 more source

Variscan sourcing of Westphalian (Pennsylvanian) sandstones in the Canobie Coalfield, UK [PDF]

open access: yes, 2010
The zircon age spectrum in a sample from the Canonbie Bridge Sandstone Formation (Asturian) of southern Scotland contains two main peaks. One is Early Carboniferous in age (348– 318 Ma), and corresponds to the age of igneous activity during the ...
ANDREW MORTON   +21 more
core   +1 more source

Petrogenetic link between metasedimentary rocks, migmatites and granitoids in the Variscan basement of the Pontgibaud area, French Massif Central – implications for the crustal structure

open access: yesBSGF - Earth Sciences Bulletin
The architecture of the crust in the French Massif Central (FMC) is described as a nappe stack composed, from top to bottom, of the Upper Gneiss Unit (UGU), the Lower Gneiss Unit (LGU), and the Para-Autochthonous Unit (PAU), which are intruded by ...
Passos do Carmo Caliméria   +6 more
doaj   +1 more source

Les petites villes : des agents d’urbanisation durable ?

open access: yesTerritoire en Mouvement, 2016
The objective of this article is to focus on the small towns and their role in the urbanisation process and this through the prism of sustainability. This term covers two acceptances: a temporal continuity and a reference to sustainable development as ...
Marie-Eve Férérol
doaj   +1 more source

Pitch production during the Roman period: an intensive mountain industry for a globalised economy? [PDF]

open access: yes, 2013
The authors’ research project in the Pyrenees mountains has located and excavated Roman kilns for producing pitch from pine resin. Their investigations reveal a whole sustainable industry, integrated into the local environmental cycle, supplying pitch to
Ejarque, Ana   +4 more
core   +5 more sources

The mesospheric inversion layer and sprites

open access: yes, 2009
The vertical structure of temperature observed by SABER (Sounding of Atmosphere using Broadband Emission Radiometry) aboard TIMED (Thermosphere, Ionosphere, Mesosphere Energetics and Dynamics) and sprites observations made during the Eurosprite 2003 to ...
Armstrong   +75 more
core   +1 more source

Current Glacier Area in the Pyrenees: An Updated Assessment 2016 [PDF]

open access: yes, 2017
Producción CientíficaLos estudios de superficie glaciar en los Pirineos han informado de más de 2000 ha en 1850, 806,5 ha en la década de 1980 y 310,33 ha en 2008.
Izagirre, Eñaut   +3 more
core   +4 more sources

Home - About - Disclaimer - Privacy