Formation of mountains via disturbances

Usage examples of orogeny.

The southern mountain range, like the one at the lower tip of the peninsula which was folded during the same orogeny, was a refuge for the flora and fauna of a continent during the Ice Age.

Uplifted and folded into a series of parallel ridges during the orogeny that had brought the whole continent into sharp relief, the rugged terrain of this farthest east expansion of the extensive mountain system was clothed with verdant life.

Some scientists believe the Appalachians experienced a fourth, earlier mountain-building episode, called the Grenville Orogeny, and that there may have been others earlier still.

Blue Ridge Mountains stood like cobalt sentinels, reminding those who knew their geology of the time before human time when Africa and part of South America slammed into this continent during the Alleghenian Orogeny, pushing up what then were the tallest mountains in the world.

Ogden Tweto, the foremost expert on the Laramide orogeny, believes the New Rockies began to emerge 72,000,000 years ago, with the process terminating about 43,000,000 years ago.

PROLOGUE The Making of the Great Plains ONLY THE PRIMEVAL SUN SAW THE BIRTH OF THE mountains in that ancient time of orogeny on the northern continent of the Earth.

Blue Ridge Mountains stood like cobalt sentinels, reminding those who knew their geology of the time before human time when Africa and part of South America slammed into this continent during the Alleghenian Orogeny, pushing up what then were the tallest mountains in the world.

Ogden Tweto, the foremost expert on the Laramide orogeny, believes the New Rockies began to emerge 72,000,000 years ago, with the process terminating about 43,000,000 years ago.