Search results for "MORPHOLOGY"
showing 10 items of 1425 documents
Mise en évidence de crues antiques sur le site gallo-romain d’Oedenburg.
2003
International audience
Hirnantian glacial and deglacial record in SW Djado Basin (NE Niger).
2007
Pluridisciplinary fieldwork highlights features generated by an extended ice-sheet in the Djado Basin during the Hirnantian. Two glacial palaeovalley systems associated with glacial pavements and separated by thin glaciomarine interstadial series are revealed. Rigid glacial pavements characterised by abrasion erosion are differentiated from soft glacial pavements characterised by soft-bed deformation. Glacial pavements are associated with subglacial bedforms such as megaflutes, flutes and meltwater channels. They are also associated with clastic dykes and glaciotectonic structures such as deformed flutes, subglacial folds and duplex structures. This record demonstrates that ice was warm-bas…
Sédimentologie des cônes juxta-glacaires sous-marins.
2006
International audience
How does shear zone nucleate? An example from the Suretta nappe (Swiss Eastern Alps)
2016
In order to address the question of the processes involved during shear zone nucleation, we present a petro-structural analysis of millimetre-scale shear zones within the Roffna rhyolite (Suretta nappe, Eastern central Alps). Field and microscopic evidences show that ductile deformation is localized along discrete fractures that represent the initial stage of shear zone nucleation. During incipient brittle deformation, a syn-kinematic metamorphic assemblage of white mica + biotite + epidote + quartz precipitated at ca. 8.5 ± 1 kbar and 480 ± 50 °C that represent the metamorphic peak conditions of the nappe stacking in the continental accretionary wedge during Tertiary Alpine subduction. The…
Saint-Martin-sous-Montaigu (71640) La Mourandine, les Vignes du Château Beau, parcelle Size Rapport de fouille programmée 2017
2017
Saint-Martin-sous-Montaigu located in the "Cote Chalonnaise" in Burgundy, is an important place for the archaelogy of the Paleolithic period. This report present the geological context of this area and the geomorphological evolution of the Vallée des Vaux.
A complex thrust sequence in western Himalaya: the active Medlicott Wadia Thrust.
2017
15 pages; International audience; The recent activity of the Medlicott-Wadia Thrust (MWT) is investigated by geomorphic and tectonic studies in the Riasi zone, south of the Pir Panjal range (India, Jammu-Kasmir state of western Himalaya). In the Riasi area, the MWT forms a splay of five faults that dip northward. The recent activity of the splay is quantified using a set of deformed Quaternary alluvial units. The central branch of the thrust splay moved Precambrian limestones above Quaternary sediments and is sealed by 36 ± 3 ka (youngest OSL age) deposits. The other branches offset the top of a 15 ± 1 ka (youngest OSL age) alluvial fan by 180 to 120 m; the two southernmost branches form 17…
Sedimentary Dynamics in Glacial and Proglacial Domains, Combe d’Ain, Jura (France), during the Last Glacial Maximum
2006
International audience
Diversity and normative processes in vine and wine growing in antique and medieval Burgundy
2022
Comme tout processus historique et humain sur le temps long, il est évident que la construction des terroirs viticoles de Bourgogne est contingente et a bénéficié d’apports, d’innovations exogènes, d’arrangements avec le réel, et de métissages, comme l’affiche le présent colloque, trop souvent oubliés ou gommés par les processus normatifs créant le récit de cette histoire téléologique. Il y a donc une tension entre la diversité créée ou venant des apports techniques et culturels au fil de l’histoire des vignobles bourguignons et les processus normatifs qui ont contribué à restreindre cette diversité tout en enracinant ses résidus dans une essence originelle.
Genetic variability of root morphology in pea : relationship with the seed protein content
2004
National audience