Les Gorges de Trévans dans le front subalpin – Un site exceptionnel des Alpes de Haute-Provence

Physio-Géo. Géographie physique et environnement

Nicod, Jean¹ 

关键词: cascades;    travertins;    France;    paléokarst;    périglaciaire;    écosystèmes;    torrents;    canyons;    hydrodynamique;    néotectonique;    séismicité;    géomorphosite;    Trévans;    travertine;    waterfalls;    periglacial;    ecosystems;    hydrodynamics;    neotectonics;    seismicity;   

DOI  :  10.4000/physio-geo.2100

学科分类：自然科学（综合）

来源: Revues.org

【 摘 要 】

The canyon system of Trevans has cut the blocks of the jurassic limestones, in subalpine over thrust front, near the Valensole piedmont. These landforms are in relationship with the neotectonic movements. This area belongs to the State Forest of Montdenier, woodland of various mountain and supra-mediterranean ecosystems, with beeches and white oaks Quercus pubescens), large extent of bush and important reforestation in black pines (Pinus nigra). The high surfaces preserve some relics of the old planation and paleokarstic forms and residual soils. On the slopes, under the break-up escarpments, the screes and landslides give the part of the periglacial processes and, locally, of the seismic events. Numerous dynamic processes occur in the canyons: rock-slides, in relationship with open fractures, scallops and pot-holes in the bottom excavated by the turbulent flows in the waterfalls of the creeks and, only case, a travertine bridge.

【 授权许可】

Unknown