With the exception of the trend and migration direction of the superimposed bedforms, the geometry and behavior of this bedform assemblage is the same as those in Figure 46A and B. An example of this kind of cross- bedding is shown in Figure 53. ... and deposition causes the scour pits to migrate upward. The resulting scour...
walrus.wr.usgs.gov/seds/bedforms/dip_pages/dip46c.html walrus.wr.usgs.gov/seds/bedforms/dip_pages/dip46c.html
The oblique orientation of the bedforms relative to the transport direction causes a bilateral asymmetry in the distribution of cross-bed dips and bounding-surface dips and causes an asymmetrical distribution of cross-bed dips relative to bounding surface dips. ... Bedforms and Cross-Bedding in Animation...
walrus.wr.usgs.gov/seds/bedforms/dip_pages/dip46d.html walrus.wr.usgs.gov/seds/bedforms/dip_pages/dip46d.html
One striking sedimentary facies is formed by medium to coarse-grained cross-bedded sands in which several foreset and/or bottomset surfaces support mud drapes. ... 13. Lambeck, K. The Earth's Variable Rotation: Geophysical Causes and Consequences (Cambridge University Press, 1980).
www.nature.com/nature/journal/v289/n5798/abs/289579a0.h... www.nature.com/nature/journal/v289/n5798/abs/289579a0.html
Rubin, D.M., 1987, Cross-Bedding, Bedforms, and Paleocurrents: Tulsa, Oklahoma: Society of Economic Paleontologists and Mineralogists, 187 p. ... What causes the top of the bundles to become rounded? In what settings in the world would you expect to find tidal bundles? 6. Erosion and migration. Look at picture 50.;
courses.washington.edu/ess456/2009files/Crossbedding.sh... courses.washington.edu/ess456/2009files/Crossbedding.shtml
Cross-bedding - Wikipedia, the free encyclopedia
In geology, cross-bedding refers to inclined sedimentary structures in a horizontal unit of rock. These tilted structures are deposits from bedforms such as ripples and dunes, and they indicate that...
en.wikipedia.org/wiki/Cross-bedding
Badlands may develop in humid areas if vegetation is removed through overgrazing or other causes. ... cross bedding layering within a bed that is at an angle to the main bedding plain...
geol-web.asp.radford.edu/Parvs_New_Dept_Web/myweb/geolo... geol-web.asp.radford.edu/Parvs_New_Dept_Web/myweb/geologic_terms.htm
As the ripples 'migrate', continuous erosion of the stoss side of the ripples and deposition on the leeward side causes cross beds to form. ... Cross bedding 26MB...
www.eos.ubc.ca/courses/eosc221/sed/sili/crossbeds.html www.eos.ubc.ca/courses/eosc221/sed/sili/crossbeds.html
CROSS-BEDDING: Inclined beds in a sedimentary rock that were formed at the time of deposition by currents of wind or water in the direction in which the bed slopes downward.
www.whfreeman.com/presssiever/content/glossary/glossary... www.whfreeman.com/presssiever/content/glossary/glossaryC.html
BEDDING PLANE: A surface parallel to the surface of deposition, which may or may not have a physical expression. The original attitude of a bedding plane should not be assumed to have been horizontal. See also CROSS-BEDDING.
www.ecy.wa.gov/programs/sea/swces/products/publications... www.ecy.wa.gov/programs/sea/swces/products/publications/glossary/words/A_C.htm
an outcrop surface—causes the lower-set boundary to rise and fall. Scalloped cross-bedding formed by fluctuating flow superficially resembles that formed by ...
jsedres.geoscienceworld.org/cgi/reprint/57/1/39.pdf
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