cross-stratification
Americannoun
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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.
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◆ Cross-stratification in which the individual strata are greater than 1 cm (0.39 inch) in thickness is called cross-bedding.
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◆ Cross-stratification in which the individual strata are less than 1 cm (0.39 inch) in thickness is called cross-lamination.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
These beds are called hummocky cross-stratification and have a 3D architecture of hills and valleys, with inclined and declined layering that matches the dune shapes.
From Textbooks ● Jan. 1, 2017
These sediment layers are typically finely laminated and may contain hummocky cross-stratification.
From Textbooks ● Jan. 1, 2017
Two of their colleagues on the work have some particularly nice web resources related to cross-stratification.
From BBC ● May 8, 2013
Shaler is a classic example of cross-stratification - a process that produces thin, inclined layers of sediment.
From BBC ● May 8, 2013
They present frequent traces of cross-stratification, alternating with regularly stratified horizontal beds, with here and there an intervening layer of clay.
From The Atlantic Monthly, Volume 18, No. 105, July 1866 by Various
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