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| outer layer of the earth, about 22 miles deep under the continents and 6 miles deep under the oceans |
| to dissolve out soluble constituents from ashes and soil by percolation |
eustasy (y 'stə-sē) Pronunciation Key
(click for larger image in new window) A uniform worldwide change in sea level caused especially by fluctuations in the amount of water taken up by continental and polar icecaps, or by a change in the capacity of ocean basins. eustatic (y -stāt'ĭk) |