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  1. Sedimentary structures - Wikipedia

    • There are two kinds of flow structures: bidirectional (multiple directions, back-and-forth) and unidirectional. Flow regimes in single-direction (typically fluvial) flow, which at varying speeds and velocities produce d… 展开

    Bedforms vs. Flow

    Typical unidirectional bedforms represent a specific flow velocity, assuming typical sediments (sands and silts) and water depths, and a chart such as below can be used for interpret… 展开

    Wikipedia
    Ripple Marks

    Ripple marks usually form in conditions with flowing water, in the lower part of the Lower … 展开

    Wikipedia
    Antidunes

    Antidunes are the sediment bedforms created by fast, shallow flows of water with a Froude number greater than 1. Antidunes form beneath standing waves of water that periodically stee… 展开

    Wikipedia
    Biological Structures

    A number of biologically-created sedimentary structures exist, called trace fossils. Examples include burrows and various expressions of bioturbation. Ichnofaciesare g… 展开

    Wikipedia
     
  1. Any layer of rock in a sedimentary sequence that can be distinguished from the layers above and below is a bedding plane. Bedding planes, also called beds or strata (singular: stratum) are the simplest sedimentary structures and the smaller lithostratigraphic unit used by geologists to describe sedimentary formations.
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  3. 5.4: Sedimentary Structures - Geosciences LibreTexts

    The most basic sedimentary structure is bedding planes, the planes that separate the layers or strata in sedimentary and some volcanic rocks. Visible in …

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    • Bedding and lamination – Geology is the Way

    • Sedimentary rock - Stratification, Fossils, Bedding

      Sedimentary structures are the larger, generally three-dimensional physical features of sedimentary rocks; they are best seen in outcrop or in large hand specimens rather than through a microscope. Sedimentary structures include …

    • Bedding and internal structures - SpringerLink

    • 1.5: Sedimentary Structures - Geosciences LibreTexts

      2023年2月18日 · Sedimentary structures are features that form in sediment as it is being deposited. These structures are typically an indication of what the sedimentary environment was like. Sedimentary structures can often be …

    • Sedimentary Structures - SpringerLink

    • Sedimentary Structures - IU

      However, decelerating flow and graded bedding are no unique feature of deep sea sediments (fluvial sediments -- floods; storm deposits on continental shelves), but in those other instances the association of the graded beds with other …