variscan orogeny उदाहरण वाक्य
उदाहरण वाक्य
- Around 280 Ma the Variscan orogeny mountain-building period occurred, again due to collision of continental plates, causing major deformation in south west England.
- Southwestern Wales, in particular, was affected by the Variscan orogeny, a period when continental collisions further south caused complex folding and fracturing of the strata.
- According to the prevailing theory, it took some 320 million years of the Variscan orogeny for the continental collision of Laurasia and Gondwana to crush the Armorican continent.
- The Variscan orogeny removed the upper schist layer from all the massif's peaks but Monte Arcosu, modelling it and showing the granite along the steep slopes.
- At the close of the Variscan orogeny, Iberia was still connected to northwestern France ( the Armorican Massif ) and most likely was a northwestern prolongation of Aquitania.
- The Variscan orogeny involved lateral compression of the rock sequence resulting in the tight folding, fracturing and faulting of the sandstone and mudstone strata, and the associated Coal Measures.
- It was compressed in the Variscan Orogeny, extended in the Mesozoic so that resulting basins filled with sediment, compressed back and lifted up in the Cretaceous, then eroded.
- These crustal accretion events produced the present day regional lithosphere, and by the time of the post-orogenic collapse of the Variscan Orogeny the supercontinent Pangea had completely formed.
- The raised beach of wave-cut platforms has been created by changes in sea level of the Bristol Channel since the strata have been tilted and compressed during the variscan orogeny.
- The east of the commune is on the Limousin plateau-the western part of the Massif Central-which is composed of crystalline and metamorphic rocks-relics of the Variscan orogeny.