31. It formed during the Alpine orogeny of the Cenozoic Era. 32. Taken together these processes are referred to as orogeny or mountain building. 33. Following this interpretation the aulacogen would have closed during the Pampean orogeny . 34. Evidence for Variscan orogeny is seen in the sheared rock and cleaved shales. 35. During the Mississippian an important phase of orogeny occurred in the Appalachian Mountains. 36. Frequently, rock formations that undergo orogeny are severely deformed and undergo metamorphism. 37. In the decades that followed " Alpine orogenies respectively. 38. This was the final episode of the Taconic Orogeny . 39. The Caledonian orogeny is named for Caledonia, the Latin name for Scotland. 40. Van Bemmelen is known for his explanation of orogeny .
