Changing earth series

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changingearthseries

Rock formations and unusual geologic structures

exploring the Earth's surface
1993
Examines geologic structures such as stone pillars, natural bridges, mountains and volcanoes and the processes that shape them.

Craters, caverns, and canyons

delving beneath the Earth's surface
1993
Examines craters, caverns, canyons, and other aspects of the Earth's interior.

Quakes, eruptions, and other geologic cataclysms

1994
Explores the varied processes behind (or beneath) all of the major geologic hazards, from earthquakes and volcanoes to floods and landslides; from dust storms and glaciation to meteor showers and mass extinctions.
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