Last Updated on February 27, 2024 by Paganoto
Cross-bedding – Wikipedia
Cross-bedding – Wikipedia
Cross-bedding forms during deposition on the inclined surfaces of bedforms such as ripples and dunes; it indicates that the depositional environment contained a flowing medium (typically water or wind). Examples of these bedforms are ripples, dunes, anti-dunes, sand waves, hummocks, bars, and delta slopes.
Bedforms: ripples and dunes – Geology is the Way
Bedforms: ripples and dunes – Geology is the Way
In geology there are several types of ripples: centimeter-scale ripples or ripple marks, megaripples, which are higher than 5 cm and several meters wide, and …
Sedimentary Structures
Sedimentary Structures
When cross-bedding forms, sand is transported as sand-dune like bodies (sandwave), in which sediment is moved up and eroded along a gentle upcurrent slope, …
6.16: Sedimentary Structures Preserved in Bedding
6.16: Sedimentary Structures Preserved in Bedding
Anyone who has been to the beach or a sand dune area have seen ripple marks created by the movement of sand under the influence of wind or water …
1.4: 4. Bedforms – Geosciences LibreTexts
1.4: 4. Bedforms – Geosciences LibreTexts
Very fine sand and silt are very easy to transport and erode. They form nice ripples, but do not form dunes when transported by water. Instead, …
Chapter 4: Sedimentary Structures – The Story of Earth
Chapter 4: Sedimentary Structures – The Story of Earth
Cross-Bedding … The top layer of a ripple or dune is not always preserved in the rock record, so it is rare to find ripples like those seen in Figures 4.3 and …
6.4 Sedimentary Structures and Fossils … – BC Open Textbooks
6.4 Sedimentary Structures and Fossils … – BC Open Textbooks
Ripples, which are associated with the formation of cross-bedding, may be preserved on the surfaces of sedimentary beds. Ripples can also help to determine flow …
6.4 Sedimentary Structures and Fossils – Physical Geology
6.4 Sedimentary Structures and Fossils – Physical Geology
Ripples , which are associated with the formation of cross-bedding, may be preserved on the surfaces of sedimentary beds. Ripples can also help to determine …
Sedimentary structures I – UMD Geology
Sedimentary structures I – UMD Geology
Bedforms · Bedforms generated by unidirections currents · Ripples: · Bedform deposition and erosion: · Plane bed deposition: · Antidunes: · Upper plane bed:.
Crossbedding
Crossbedding
Cross bedding forms on a sloping surface such as ripple marks and dunes, and allows us to interpret that the depositional environment was water or wind.
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