| 单词 | sedimentary |
| 释义 | sedimentary (sedɪmentri , US -teri ) adjective [ADJECTIVE noun] Sedimentary rocks are formed from sediment left by water, ice, or wind. It is very difficult to date the age of a sedimentary rock. Collocations: sedimentary layer Indeed, almost a sedimentary layer of its own. Times, Sunday Times In those cases, the lateral limits of the sedimentary layer will be marked by an abrupt change in rock type. Retrieved from Wikipedia CC BY-SA 3.0 Sole markings, such as tool marks and flute casts, are groves dug into a sedimentary layer that are preserved. Retrieved from Wikipedia CC BY-SA 3.0 Here a sedimentary layer of sandstone and limestone formed from the powerful pressure exerted by the sea. Retrieved from Wikipedia CC BY-SA 3.0 The feature rises from approximately 2,100 metres to 600 metres below sea level and has a sedimentary layer approximately 100 metres thick. Retrieved from Wikipedia CC BY-SA 3.0 |
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