Langeais Castle. The Langeais Castle has a tumultuous history. By the end of the 10th Century, the Count of Anjou, Foulque Nerra conquered Langeais, and built a fortress to establish his power.The count was indeed one of the best in Medieval military architecture.angeais is a splendid example of late Medieval castle architecture, with the interior fa ade announcing the Renaissance. It is situated 22 km west of Tours. How to get there: By Train: Take the train from Tours. The journey is taking only 17 minutes The round trip (aller-retour) is 4.80 Euros.
Subduction zones are broad areas where two. plates are moving in opposite directions. The. oceanic plate descends beneath a continental. plate in this example. [See Divergent and. Convergent Plate Boundaries for more-. detailed depictions].
Subduction zones. Subduction zones form when a continental plate is colliding with an oceanic plate. Subduction zones also form when two oceanic plates collide. The continental crust is lighter because of the quartz and feldspar minerals in granite.Iron and magnesium are much heavier minerals found in ocean floor basalt. When the two plates meet the oceanic crustal plate always subducts beneath the continental plate.The subducting oceanic plate bends and plunges beneath the lighter continental plate until it melts. When two oceanic plates meet and form a subduction zone the heavier and denser of two oceanic plates subducts.ubduction zones also form when two oceanic plates collide. The continental crust is lighter because of the quartz and feldspar minerals in granite. Iron and magnesium are much heavier minerals found in ocean floor basalt. When the two plates meet the oceanic crustal plate always subducts beneath the continental plate.