Valley
978-613-0-36230-0
6130362307
76
2010-09-16
34.00 €
eng
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In geology, a valley or dale is a depression with predominant extent in one direction. A very deep river valley may be called a canyon or gorge. The terms U-shaped and V-shaped are descriptive terms of geography to characterize the form of valleys. Most valleys belong to one of these two main types or a mixture of them, at least with respect of the cross section of the slopes or hillsides.
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