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06-35ABC 06_35ABC.jpg |
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| Title: | Formation of cross beds. |
| Caption: | As parts A and B illustrate, dunes commonly have an asymmetrical shape. The steeper leeward side is called the slip face. Sand grains deposited on the slip face create the cross-bedding of the dunes. C. A complex pattern develops in response to changes in wind direction. Also notice that when dunes are buried and become part of the sedimentary record, the cross-bedded structure is preserved. |
| Keywords: | arid climates, deserts, winds, slip faces, sediments, cross bedding |