More

Geology Underfoot in Yosemite National Park

Geology Underfoot in Yosemite National Park


Learn about the Geology of Yosemite National Park with maps, photos and expert descriptions! This 6"x9" paperback has 299 pages that are packed with detailed information about Yosemite Geology. See table of contents below.

Geology Underfoot in Yosemite National ParkTable of Contents

Preface vii
Introduction1
Yosemite's Geologic Backdrop1
How Glaciers Work and How They Shaped Yosemite10
What Is a Glacier?11
How Glaciers Erode16
Glacial Modification of Landscapes18
What Glaciers Leave Behind22
History of Glaciers in Yosemite24
Modern Glaciers29
Rivers and Streams in Yosemite30
Geologic Study of Yosemite36
1. Bones of the Earth
Granite, Granodiorite, and the Bedrock of Yosemite41
2. Vertical Exposure
The Geology of Yosemite Climbing57
3. Pushed of a Cliff
The Origin of Yosemite Falls71
4. Giant Steps
Vernal and Nevada Falls77
5. Free-Falling Granite
The 1996 Happy Isles Rockfall and Its Unusual Air Blast85
6. That's the Way the Cookie Crumbles
The 1982 Cookie Cliff Rockslide95
7. The Walls Came Tumbling Down
Earthquakes and Rock Avalanches in Yosemite Valley103
8. How Water Sculpts Yosemite
The Flood of 1997111
9. A Natural Dam Across Yosemite Valley
The El Capitan Moraine121
10. Cracks in the Earth
The Fissures of Taft Point131
11. Half a Dome Is Better Than None
Sentinel Dome and Half Dome139
12. The Earth as an Onion
Exfoliation Joints147
13. The Ice Went Thataway!
The Shaping of Pothole Dome155
14. Exotic Erratics
Glacially Transported Boulders at Olmsted Point165
15. Why are There Trees Poking Out of Tenaya Lake?
The Great Medieval Megadrought171
16. Soda Springs
That Fizzy Taste Carries a Geochemical Surprise181
17. Runaway Rocks
Metamorphic Rocks at May Lake187
18. Root of an Ancient Volcano
Little Devils Postpile195
19. Tombstone Rocks, Slate and Greenstone
Rocks of the Western Approaches205
20. Inverted Landscape
The Stanislaus Table Mountain Lava Flow217
21. Eocene Erosion
Ancient, Weathered Landscapes of the Sierra Nevada225
22. An Ancient, Ice-Bound Sea
Mono Lake and Ancestral Lake Russell235
23. An Underwater Volcano
Mono Lake's Black Point247
24. Evidence of the Ice Ages
Glacial Deposits In and Around Lee Vining Canyon255
25. Dreams of Silver
The Mines of Bennettville and Dana Village267
Glossary274
Sources of More Information 282
Index 289