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Descriptive Geology of Nevada South of the Fortieth Parallel and Adjacent Portions of California (Classic Reprint) - Couverture souple

Josiah Edward Spurr

 
9781330470947: Descriptive Geology of Nevada South of the Fortieth Parallel and Adjacent Portions of California (Classic Reprint)

Synopsis

A detailed look at the Pine Nut Range reveals bold, deeply dissected terrain shaped by abundant springs and a mix of igneous and sedimentary rocks. This section traces how volcanic activity and later water action carved canyons, exposed lavas, and granular granite intrusions, offering a clear picture of how topography and rock types interact in Nevada’s south.

The narrative follows two main study routes, describing lava flows, granitic bodies, and intermittent sediment layers. It explains how andesite and rhyolite evolve into complex rock sequences, with pockets of Triassic limestone perched above volcanic beds. The text also connects surface features to broader geologic history, including paleogeographic hints from lake action and post-Pleistocene reshaping.

- Learn how andesite, rhyolite, and granite varieties transition across the range, with notes on mineral content and textures.
- See how gentle cliffs, deep canyons, and broad flats form from erosion and tectonic activity.
- Explore the relationship between lava flows, volcanic breccias, and later sedimentary deposits near Dayton, Eldorado Canyon, and Carson River.
- Understand evidence for ancient lakes and lake-level changes that shaped the landscape.

Ideal for readers of field geology and those curious about how Nevada’s volcanic and sedimentary history sits beneath modern topography, this edition helps you connect rock types to landscape features in a concrete, readable way.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.