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Geology underfoot in Yosemite National Park / Allen F. Glazner and Greg M. Stock.


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Glazner, Allen F.
Publication date:
Missoula, Mont. : Mountain Press Pub., 2010.
  • Book
  • viii, 299 p. : ill. (chiefly col.), col. maps ; 23 cm.
Includes bibliographical references and index.
  • Introduction
  • Yosemite's geologic backdrop
  • How glaciers work and how they shaped Yosemite: What is a glacier?; How glaciers erode; Glacial modification of landscapes; What glaciers leave behind; History of glaciers in Yosemite; Modern glaciers
  • Rivers and streams in Yosemite
  • Geologic study of Yosemite
  • Bones of the earth : granite, granodiorite, and the bedrock of Yosemite
  • Vertical exposure : the geology of Yosemite climbing
  • Pushed off a cliff : the origin of Yosemite falls
  • Giant steps : Vernal and Nevada fall
  • Free-falling granite : the 1996 Happy Isles rockfall and its unusual air blast
  • That's the way the cookie crumbles : the 1982 Cookie Cliff rockslide
  • The walls came tumbling down : earthquakes and rock avalanches in Yosemite Valley
  • How water sculpts Yosemite : the flood of 1997
  • A natural dam across Yosemite Valley : the El Capitan moraine
  • Cracks in the earth : the fissures of Taft Point
  • Half a dome is better than none : Sentinel Dome and Half Dome
  • The earth as an onion : exfoliation joints
  • The ice went thataway! : the shaping of Pothole Dome
  • Exotic erratics : glacially transported boulders at Olmsted Point
  • Why are there trees poking out of Tenaya Lake? The great medieval megadrought
  • Soda Springs : that fizzy taste carries a geochemical surprise
  • Runaway rocks : metamorphic rocks at May Lake
  • Root of an ancient volcano : Little Devils postpile
  • Tombstone rocks, slate, and greenstone : rocks of the western approaches
  • Inverted landscape : the Stanislaus Table Mountain lava flow
  • Eocene erosion : ancient, weathered landscapes of the Sierra Nevada
  • An ancient, ice-bound sea : Mono Lake and ancestral Lake Russell
  • An underwater volcano : Mono Lake's black point
  • Evidence of the ice ages : glacial deposits in and around Lee Vining Canyon
  • Dreams of silver : the mines of Bennettville And Dana Village
  • Glossary
  • Sources of more information
  • Index.
This volume will help readers read the Yosemite National Park's landscape the way a geologist does. The authors tell the park's history and describe the origins of its hundreds of little known but surprisingly accessible features. They illustrate it all with illuminating color photographs, maps and clear diagrams. Readers will discover things like why many of Yosemite's domes shed rock shells like onion layers, what happens when a volcano erupts under a glacial lake, and why rocks seem to be almost continually tumbling from the region's cliffs.
Stock, Greg M., 1973-

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