| The New Dictionary of Cultural Literacy, Third Edition. 2002. |
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| stratification |
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| The process by which materials form or are deposited in layers, as in sedimentary rocks and some igneous rocks. | 1 |
| ‡ The atmosphere and the ocean also exhibit stratification, with the warmer air or water occupying the upper layers. | 2 |
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| | | The New Dictionary of Cultural Literacy, Third Edition. Edited by E.D. Hirsch, Jr., Joseph F. Kett, and James Trefil. Copyright © 2002 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. |
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