2006-09-25 14:07:36 · 9 answers · asked by rorichardson40 1 in Education & Reference ➔ Homework Help
According to a National Park Service magazine on these mountains, what we see now is the fourth erection of the range. This most recent event occurred 65 million years ago and involved all types of mountain building with volcanic activity of epic proportions. The most basic force is the westward shift of the North American tectonic plate and its collision with the Pacific tectonic plate causing folding forces, much like a piece of paper folds as it is pushed against a backstop. Much of land mass of Oregon and Washington is piled up seabed materiel bulldozed off the floor of the Pacific Ocean. Nature's forces are awesome.
2006-09-25 14:24:33 · answer #1 · answered by wealthmaster 3 · 0⤊ 0⤋
Pressure from the Atlantic and Pacific Tectonic Plates created the Rocky Mountains in the Mesozoic Era.
Additionally, along the Rocky Mountains of Utah are five major fault lines: Wasatch, Sevier, Hansel Valley, Hurricane, and Elsinore.
2006-09-25 14:20:30 · answer #2 · answered by : ) 4 · 0⤊ 0⤋
The Cascades were formed by volcanoes. The Sierras were uplifted by shifting of the layers within the earth; same with the mountains in western Texas [Guadalupes] Mountains. In Colo., Utah, and New Mex. mountains were formed by volcanoes as well as in the Yellowstone. The Tetons were uplifted as layers of earth shifted upward. These mountains make up what is commonly called the rocky mountains.
2006-09-25 14:19:41 · answer #3 · answered by longroad 5 · 0⤊ 0⤋
Scientists are not to any extent further 100 p.c. particular on that one From what's nice understood, there turned right into a weak area contained in the North American Plate which buckled as collisions with different plates happened, inflicting the mountains to variety
2016-11-23 21:36:54 · answer #4 · answered by flausino 3 · 0⤊ 0⤋
the 2 plates collided
2006-09-25 14:16:13 · answer #5 · answered by Japan_is_home 5 · 1⤊ 0⤋
it has something to do with the shifting of the super continents .. when the two collided the crust got pushed upward forming mountians.... someone else corect me if im wrong
2006-09-25 14:09:13 · answer #6 · answered by jilllyy 2 · 2⤊ 0⤋
Plate techtonics; when the earths plates colide together it forced the earthup.
2006-09-25 14:10:20 · answer #7 · answered by Aaron A 5 · 1⤊ 1⤋
tectonic action.
2006-09-25 14:08:53 · answer #8 · answered by jvb951 2 · 2⤊ 0⤋
earthquakes and glacial drift
2006-09-25 14:08:52 · answer #9 · answered by bchylik 3 · 1⤊ 2⤋