Download presentation
Presentation is loading. Please wait.
Published byMagdalene Joseph Modified over 9 years ago
1
Mountain Building
2
Folded Mountain -compressional forces squeeze the rock layers from opposite sides causing it to buckle.
3
Folded Mountain Ex.
9
Up-Warped Mountain - crust is pushed upward by forces inside the earth.
10
Up-Warped Mountain - crust is pushed upward by forces inside the earth.
11
Up - Warped Mountain Ex.
12
Adirondak Mountains
13
Rockies
15
Black Hills
16
Volcanic Mountain -molten material reaches the surface through a weak area of crust and piles up, one layer on top of another to form a cone-shaped structure
17
Volcanic Mountain Ex.
18
Moana Loa
19
Moana Loa – shield volcano
20
Mt. St. Helens
22
Vesuvius
23
Etna
24
Colima, Mexico
25
One day a man from a small village in Michoacán, Mexico was going out in his fields. Just then the ground nearby opened up a fissure. There was a greenish smoke and a smell of sulfur. Then the ground rose up 2 ½ meters high. Paricutin exploded out of a cornfield about 200 miles west of Mexico City in early 1943, giving the modern world its first opportunity to witness the birth of a volcano. Within a year, the volcano's cinder cone reached 1,100 feet. Within two years, its slow-moving lava flows buried most of the town of Paricutin. The lava eventually covered about 10 square miles.
26
Paricutin, Mexico Paricutin is not expected to erupt again. The village was rebuilt some distance away.
27
Fault Block Mountain - huge tilted blocks separated from surrounding rock by faults.
28
Fault Block Mountain - huge tilted blocks separated from surrounding rock by faults.
29
Fault Block Mountain Ex.
31
Tetons
32
Sierras - California
34
Franklin Mts. - Texas
35
San Pedro Valley
36
Thirty miles south of Salt Lake City, near the mouth of Provo Canyon in Orem, Utah is an excellent example of fault block mountains. The north-south trending Wasatch Range extends throughout the center of Utah. The western flank of the range is very steep and relatively straight, the result of displacement along the extensive and still-active Wasatch Fault. Summits along the crest of the range have elevations between 9,000 and 10,000 feet. The mountain-sized fault blocks of this region developed in a fairly orderly fashion, breaking roughly at right angles to the westward direction of stress. As visible in this photo, the truncated spurs of the Wasatch Mountains provide evidence that movement on the Wasatch fault is geologically recent.
37
California
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.