Geologic Story
The Geologic Story of Yellowstone National Park
作者：Keefer, William R., 1924-; Stacy, John R. [Illustrator]
体例：题 章数：36
字数：105,920 来源：Project Gutenberg
版本与结构
- 来源版本
- 本站收录 1 个来源：Project Gutenberg（105,920 字）。
- 分章依据
- 按「题」标记切分为 36 题（Gutenberg 卷册标记）。
- 篇幅分布
- 平均每题 2,942 字。
- 原文溯源
cache/epub/60574/pg60574.txt（Project Gutenberg）
章节目录
共 36 题- By William R. Keefer
- GEOLOGICAL SURVEY BULLETIN 1347
- Library of Congress catalog-card No. 79-169200
- Foreword
- Contents
- Figures
- Yellowstone Country
- A geological preview
- Geologic History of the Yellowstone Region
- The nature of the rocks reveals their origins
- The oldest rocks
- AGE, IN THOUSANDS OF YEARS ROCK FORMATION OR UNIT
- The deposits of the shifting seas
- The first mountain-building episode
- Volcanic activity
- A quiet period
- More mountain building and deep erosion
- Formation of the Yellowstone Caldera
- The eruption
- The collapse
- The outpouring of lava
- Final Sculpturing of the Landscape
- Glaciation
- Running water—canyons and waterfalls
- Grand Canyon of the Yellowstone
- Hot-Water and Steam Phenomena
- How a thermal system operates
- Hot-spring deposits and algae
- Hot springs and geysers
- Mudpots
- Fumaroles
- Thermal explosions
- Faulting and its control of thermal activity
- Earthquakes
- Footnotes
- Transcriber’s Notes