From the perspective of human time, very little changes on 'the surface of Earth. From the perspective of geologic time, the period from Earth's beginning more than 4.5 billion years ago to the pres• ent day, however, the surface of the planet is in constant motion, being reshaped over and over. The constructive and destructive forces at play in this reshaping have helped create landforms, specific geomorphic features on Earth's land surface. Mountains and canyons, plains and plateaus, faults and basins: These are but a few of the varied and spectacular features that define the landscape of the planet. U•X•L Encyclopedia of Landforms and Other Geologic Features explores twenty-two of these landforms: what they are, how they look, how they were created, how they change over time, and major geological events associated with them.
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Pusat Sumber Daya Mineral, Batubara dan Panas Bumi - Jln. Soekarno Hatta No. 444, Bandung, Jawa Barat
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