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  2. Interbedding - Wikipedia

    en.wikipedia.org/wiki/Interbedding

    In geology, interbedding occurs when beds (layers of rock) of a particular lithology lie between or alternate with beds of a different lithology. [1] For example, sedimentary rocks may be interbedded if there were sea level variations in their sedimentary depositional environment .

  3. Bed (geology) - Wikipedia

    en.wikipedia.org/wiki/Bed_(geology)

    In geology, a bed is a layer of sediment, sedimentary rock, or volcanic rock "bounded above and below by more or less well-defined bedding surfaces". [1] A bedding surface or bedding plane is respectively a curved surface or plane that visibly separates each successive bed (of the same or different lithology) from the preceding or following bed.

  4. Sedimentary structures - Wikipedia

    en.wikipedia.org/wiki/Sedimentary_structures

    Sedimentary structures include all kinds of features in sediments and sedimentary rocks, formed at the time of deposition.. Sediments and sedimentary rocks are characterized by bedding, which occurs when layers of sediment, with different particle sizes are deposited on top of each other. [1]

  5. Intercalation - Wikipedia

    en.wikipedia.org/wiki/Intercalation

    Intercalation (geology), a special form of interbedding, where two distinct depositional environments in close spatial proximity migrate back and forth across the border zone; Intercalary chapter, a chapter in a novel that does not further the plot. See also frame story (sometimes called intercalation). In biology:

  6. Heterolithic bedding - Wikipedia

    en.wikipedia.org/wiki/Heterolithic_bedding

    Heterolithic bedding is a sedimentary structure made up of interbedded deposits of sand and mud.It is formed mainly in tidal flats but can also be formed in glacial environments.

  7. Cleveland Shale - Wikipedia

    en.wikipedia.org/wiki/Cleveland_Shale

    The contact between the Chagrin Shale and Cleveland Shale has been described as interbedding. This feature is interpreted as having been caused when two different depositional environments (in this case, the oxygenated sea which laid down the Chagrin Shale and the anaerobic sea rich in organic matter which laid down the Cleveland Shale) moved ...

  8. Glossary of geology - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_geology

    A geologic period starting 23 million years ago and, depending on definition, either lasting until today or ending 2.6 million years ago with the beginning of the Quaternary. Nodule Small mass of a mineral with a contrasting composition to the enclosing sediment or rock. Not to be confused with concretion. non-clastic

  9. Concretion - Wikipedia

    en.wikipedia.org/wiki/Concretion

    Nodule (geology) – Small mass of a mineral with a contrasting composition to the enclosing sediment or rock, a replacement body, not to be confused with a concretion Rock City, Kansas – park in Kansas, United States of America, United States of America Pages displaying wikidata descriptions as a fallback