• Thumbnail for Bedform
    A bedform is a geological feature that develops at the interface of fluid and a moveable bed, the result of bed material being moved by fluid flow. Examples...
    11 KB (1,243 words) - 22:06, 12 July 2023
  • Thumbnail for Antidune
    An antidune is a bedform found in fluvial and other channeled environments. Antidunes occur in supercritical flow, meaning that the Froude number is greater...
    7 KB (909 words) - 11:51, 27 November 2022
  • Thumbnail for Cross-bedding
    cross-strata. Cross-bedding forms during deposition on the inclined surfaces of bedforms such as ripples and dunes; it indicates that the depositional environment...
    15 KB (1,983 words) - 09:50, 9 October 2022
  • Hall, Minard; Ramón, Patricio; Dingwell, Donald B. (2013-10-13). "Dune bedforms produced by dilute pyroclastic density currents from the August 2006 eruption...
    5 KB (634 words) - 22:54, 18 July 2024
  • Thumbnail for Sedimentary structures
    varying speeds and velocities produce different structures, are called bedforms. In the lower flow regime, the natural progression is from a flat bed,...
    13 KB (1,493 words) - 02:38, 4 December 2023
  • Thumbnail for Ripple marks
    In geology, ripple marks are sedimentary structures (i.e., bedforms of the lower flow regime) and indicate agitation by water (current or waves) or directly...
    11 KB (1,030 words) - 23:30, 18 March 2024
  • Thumbnail for Sedimentary rock
    characteristic of turbidity currents. The surface of a particular bed, called the bedform, can also be indicative of a particular sedimentary environment. Examples...
    63 KB (7,683 words) - 08:39, 25 June 2024
  • Thumbnail for Martian regolith
    regolith components identified at landing sites. Typical examples include: bedform (a feature that develops at the interface of fluid and a moveable bed such...
    46 KB (4,654 words) - 14:53, 21 July 2024
  • Thumbnail for Aeolian processes
    represented by sand-flow maps. These are based on meteorological observations, bedform orientations, and trends of yardangs. They are analogous to drainage maps...
    48 KB (6,008 words) - 20:37, 25 July 2024
  • Thumbnail for Dune
    next blows in the dominant direction. Draas are very large-scale dune bedforms; they may be tens or a few hundreds of metres in height, kilometres wide...
    71 KB (7,714 words) - 01:35, 28 July 2024