Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun An arrangement of sediment strata deposited at an angle to the prevalent orientation of stratification, usually produced by the migration of sand dunes or ripples.
from The Century Dictionary.
- noun Cross-bedding or false bedding. See
false .
Etymologies
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Examples
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They present frequent traces of cross-stratification, alternating with regularly stratified horizontal beds, with here and there an intervening layer of clay.
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Examine the shingle along our beaches: we find it so distributed as to show that the fading tide-wave has carried the lighter materials farther than the heavier ones, and the successive deposits exhibit an imperfect cross-stratification resulting from changes in the height of the tide and the direction of the wind.
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Dufrenoy in a hurry, I think, and added to the difficulty -- it is the whole hill or "colline" which is composed of tuff with cross-stratification; the central boss or "monticule" is simply trachyte.
More Letters of Charles Darwin — Volume 2 Charles Darwin 1845
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