Geology Underfoot in Yellowstone Country
by Marc S. Hendrix
Geology Underfoot in Yellowstone Country
|
|
| Preface |
vii
|
| Acknowledgments |
ix
|
| Introduction |
1
|
| Vignettes |
1
|
1. The Missing Record of Deep Time |
| The Great Unconformity in Shoshone River Canyon |
15
|
| 2. Invasion of the Trilobites | |
| Cambrian Sea Life Flourishes near Cody |
27
|
| 3. Limy Record of Shallow Seas | |
| Mississippian Limestone at Pebble Creek Campground |
37
|
| 4. The Cretaceous Interior Seaway | |
| Marine Deposits in Gardner River Canyon |
45
|
| 5. Mountains Reduced to Rubble | |
| Sphinx Mountain and The Helmet |
56
|
| 6. Basement Rock on the Rise | |
| Uplift of Rattlesnake and Cedar Mountains |
71
|
| 7. Strange Brew | |
| The Unusual Volcanic Rocks near Sylvan Pass |
79
|
| 8. Debris Flow Deposits | |
| Coarse Conglomerate between Cody and East Entrence |
91
|
| 9. Fossilized Forests | |
| Petrified Wood in Tom Miner Basin |
100
|
| 10. From Playa Lakes to Rushing Rivers | |
| Landscape Changes Recorded at Hepburn's Mesa |
113
|
| 11. Arrival of the Hot Spot | |
| The First Caldera-Forming Eruption in Yellowstone |
127
|
| 12. The Yellowstone Volcano Erupts Again! | |
| Tuff Smothers the Region aand a Caldera Forms |
143
|
| 13. The Youngest Eruptions | |
| Rhyolite Flows in the Firehole River Drainage |
157
|
| 14. Ice Sculptures along the Beartooth Highway | |
| Glaciers Carve Yellowstone's Landscapes |
171
|
| 15. Rivers of Dirty Ice | |
| Glacial Deposits in Northern Yellowstone |
186
|
| 16. Melting Ice and Sliding Shale | |
| Floods and Earthflows near Gardiner |
197
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| 17. Terraced Travertines | |
| Mammoth's Famous Hot Springs |
209
|
| 18. Siliceous Sinter | |
| Old Faithful and Upper Geyser Basin |
223
|
| 19. Hydrothermal Explosions | |
| Norris Geyser Basin and Yellowstone Lake's North Shore |
237
|
| 20. The Night the Ground Shook | |
| The 1959 Hebgen Lake Earthquake |
251
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| Epilogue: The Certainty of Change in Yellowstone |
266
|
| Glossary |
273
|
| Sources of More Information |
283
|
| GPS Coordinates for Stop Locations |
291
|
| Index |
293
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