page_title: Interbedding
hierarchical_section_title: Interbedding
caption_attribution_description: Interbedded graywacke-siltstone-slate in the Precambrian of Minnesota, USA. This is an outcrop of slightly metamorphosed shale-siltstone-graywacke outcrop that was smoothed and striated by glaciers during the Pleistocene Ice Age. Geologic unit &amp; age: Mud Lake sequence, Neoarchean. Locality: roadcut along the eastern side of Bourgin Road roadcut, just southeast of the Rt. 53-Rt. 135 intersection, southeast of the town of Virginia, central St. Louis County, northeastern Minnesota, USA.
context_page_description: In geology, interbedding occurs when beds of a particular lithology lie between or alternate with beds of a different lithology. For example, sedimentary rocks may be interbedded if there were sea level variations in their sedimentary depositional environment.
  Intercalation is a special case of interbedding where a layer is variably inserted into an already existing sequence; or where two separate depositional environments in close spatial proximity migrate alternately across the contact.
  While interbedding has layers that are horizontally flat, intercalated rock on the other hand has slanted layers that streak through each other. For example intercalated conglomerate and sandstone looks like ripples of different material networked through each other somewhat off the horizontal, as the beds are deposited in a gradient. This is likely due to differing fluvial conditions and gradual changes in sediment transport over time.
context_section_description: In geology, interbedding occurs when beds (layers or rock) of a particular lithology lie between or alternate with beds of a different lithology. For example, sedimentary rocks may be interbedded if there were sea level variations in their sedimentary depositional environment.
  Intercalation is a special case of interbedding where a layer is variably inserted into an already existing sequence; or where two separate depositional environments in close spatial proximity migrate alternately across the contact. 
  While interbedding has layers that are horizontally flat (or aligned with the angle of the entire stratum), intercalated rock on the other hand has slanted layers that streak through each other (even when it aligns with the stratum). For example intercalated conglomerate and sandstone looks like ripples of different material networked through each other somewhat off the horizontal, as the beds are deposited in a gradient. This is likely due to differing fluvial conditions and gradual changes in sediment transport over time.
caption: Interbedded graywacke-siltstone-slate in the Precambrian of Minnesota, USA. This is an outcrop of slightly metamorphosed rock that was smoothed and striated by glaciers during the Pleistocene Ice Age.
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