An arrangement of sediment strata deposited at an angle to the main stratification. The most common type of cross-stratification is produced by the migration of sand dunes or ripples.♦ Cross-stratification in which the individual strata are greater than 1 cm (0.39 inch) in thickness is called cross-bedding.♦ Cross-stratification in which the individual strata are less than 1 cm (0.39 inch) in thickness is called cross-lamination.
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