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Geological feature resulting from the movement of bed material by fluid flow
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
Bedform
Sedimentary structure formed by water
as a type of usually a large, ridge-like bathymetric feature, called a bedform, that is created by the interaction between underwater unidirectional currents
Sand_wave
Bedform in channeled environments
An antidune is a bedform found in fluvial and other channeled environments. Antidunes occur in supercritical flow, meaning that the Froude number is greater
Antidune
Geologic structures formed during sediment deposition
varying speeds and velocities produce different structures, are called bedforms. In the lower flow regime, the natural progression is from a flat bed,
Sedimentary_structures
Sedimentary rock strata at differing angles
cross-strata. Cross-bedding forms during deposition on the inclined surfaces of bedforms such as ripples and dunes; it indicates that the depositional environment
Cross-bedding
Mass of turbulent ash and gas that occurs in some volcanic eruptions
Hall, Minard; Ramón, Patricio; Dingwell, Donald B. (2013-10-13). "Dune bedforms produced by dilute pyroclastic density currents from the August 2006 eruption
Pyroclastic_surge
Wave structures created in sediments by bottom current
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
Ripple_marks
Type of sediment wave
Cyclic steps are rhythmic bedforms associated with Froude super-critical flow instability. They are a type of sediment wave, and are created when supercritical
Cyclic_steps
Sediment processes associated with rivers and streams
such as ripples, dunes, or antidunes on the river or stream bed. These bedforms are often preserved in sedimentary rocks and can be used to estimate the
Fluvial_sediment_processes
Hill of loose sand built by aeolian processes or the flow of water
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
Dune
Type of sedimentary rock
Lithification Siltation Turbidity currents By structure Sedimentary structures Bedforms cross-bedding duness graded bedding ripple marks Alluvial fan Alluvial
Sandstone
Processes due to wind activity
represented by sand-flow maps. These are based on meteorological observations, bedform orientations, and trends of yardangs. They are analogous to drainage maps
Aeolian_processes
Rock formed by the deposition and cementation of particles
characteristic of turbidity currents. The surface of a particular bed, called the bedform, can also be indicative of a particular sedimentary environment. Examples
Sedimentary_rock
Strait off the coast of Rhode Island, USA
models to make topographical depictions of unknown glacial features and bedforms. Newfound glacial features include an ice-sculptured bedrock surface, residual
Rhode_Island_Sound
U-shaped lake or pool left by an ancient river meander
slope Stream pool Thalweg Bedrock river Canyon Knickpoint Plunge pool Bedforms Ait Antidune Dune Current ripple Regional processes Aggradation Base level
Oxbow_lake
either straight crested or sinuous crested ripples. Sedimentary structures Bedform Wikimedia Commons has media related to Ripple marks. Maurice E. Tucker
Wave-formed_ripple
Geologist
R. et al., in press, 'The Role of Bio-physical Cohesion on Subaqueous Bedform Size', Geophysical Research Letters, February, 2016. Malarkey, J., Baas
Daniel_Parsons
Indian hydraulician and educator
PMID 35153576. "instability theories of bedforms". "instability theories of bedforms". "instability theories of bedforms". Bose, Sujit K.; Dey, Subhasish (3
Subhasish_Dey
Network of river channels
23 April 2011. Blodgett, R.H.; Stanley, K.O. (1980). "Stratification, Bedforms, and Discharge Relations of the Platte Braided River System, Nebraska"
Braided_river
Fine regolith found on the surface of Mars
regolith components identified at landing sites. Typical examples include: bedform (a feature that develops at the interface of fluid and a moveable bed such
Martian_regolith
Movement of solid particles, typically by gravity and fluid entrainment
and viscosity, and can therefore not exert very much shear on its bed. Bedforms are generated by aeolian sediment transport in the terrestrial near-surface
Sediment_transport
Area where land meets the sea or ocean
with tidal currents. Wave action is much more important for determining bedforms of sediments deposited along mesotidal and microtidal coasts than in macrotidal
Coast
Land adjacent to a water body which is flooded during periods of high water
slope Stream pool Thalweg Bedrock river Canyon Knickpoint Plunge pool Bedforms Ait Antidune Dune Current ripple Regional processes Aggradation Base level
Floodplain
Paleontological site in Colorado, United States
flow velocities determined from grain size and bedforms. The river flow direction, based upon bedform orientations and bone elongation statistics, was
Dry_Mesa_Quarry
Particulate solid matter deposited on a planetary surface
Lithification Siltation Turbidity currents By structure Sedimentary structures Bedforms cross-bedding duness graded bedding ripple marks Alluvial fan Alluvial
Sediment
Sedimentary deposit produced by thermohaline-induced deepwater bottom currents
del Rio, V.; Branson, A. (2009). "Bedform-velocity matrix: The estimation of bottom current velocity from bedform observations". Geology. 37 (4): 327–330
Contourite
Grassland areas in the western United States
current ripples spread out and merge on the basin floor. These sedimentary bedforms are best seen in aerial images and at low sun angles. These giant current
Camas_prairie
descend from the polar high to transport ice and create large wavelength bedforms. The spiral shape comes from Coriolis effect forcing of the winds, much
Climate_of_Mars
Tendency for particles in suspension to settle down
Lithification Siltation Turbidity currents By structure Sedimentary structures Bedforms cross-bedding duness graded bedding ripple marks Alluvial fan Alluvial
Sedimentation
Navigable sea passage between Australia and New Guinea
Broadcasting Corporation. Retrieved 9 May 2015. Harris, P. T. (1988). "Sediments, bedforms and bedload transport pathways on the continental shelf adjacent to Torres
Torres_Strait
Sharp irregular grooves or ridges formed on a snow surface
Kochanski, K.; Anderson, R.S.; Tucker, G. (2019). "The evolution of snow bedforms in the Colorado Front Range". The Cryosphere. 13: 1267–1281. doi:10.5194/tc-13-1267-2019
Sastrugi
also the primary indicator of the lower part of the upper flow regime bedform. Parting lineation is a sedimentary structure commonly found on the surface
Parting_lineation
Marine environment between the shore and the continental shelf
grain size, with the smallest grains at the top Ripples: the smallest bedform type Dunes: larger and similar in shape to ripples Carbonaceous sedimentary
Shallow water marine environment
Shallow_water_marine_environment
Type of glacial outburst flood
Pugin; R. R. Young (December 2008). "A Meltwater Origin for Antarctic Shelf Bedforms with Special Attention to Megalineations". Geomorphology. 102 (3–4): 364–375
Jökulhlaup
Martian crater
Rebecca M.; Stack, Kathryn M. (2021). "A Rock Record of Complex Aeolian Bedforms in a Hesperian Desert Landscape: The Stimson Formation as Exposed in the
Gale_(crater)
Sedimentary rocks containing 15 wt.% or more iron
the form of discontinuous layers. Discontinuous layers likely represent bedforms that were generated by storm waves and currents. Any layers that are thicker
Iron-rich_sedimentary_rocks
Geology of fourth planet from the Sun
Rebecca M.; Stack, Kathryn M. (2021). "A Rock Record of Complex Aeolian Bedforms in a Hesperian Desert Landscape: The Stimson Formation as Exposed in the
Geology_of_Mars
Deposition of sediments onto snow or ice
the surface of a niveo-aeolian deposit typically consists of a rippled bedform of mixed sand and snow. Beneath the surface, the deposits commonly consist
Niveo-aeolian_deposition
Elongated hill formed by glacial action
ISBN 978-0-902246-04-1. Shaw, John (April 2002). "The meltwater hypothesis for subglacial bedforms". Quaternary International. 90 (1): 5–22. Bibcode:2002QuInt..90....5S.
Drumlin
Natural addition of materials to a landmass
between the oscillatory flow of waves and tides flowing over the wave ripple bedforms in an asymmetric pattern. "The relatively strong onshore stroke of the
Deposition_(geology)
River bar in middle of river mouth
slope Stream pool Thalweg Bedrock river Canyon Knickpoint Plunge pool Bedforms Ait Antidune Dune Current ripple Regional processes Aggradation Base level
Mouth_bar
Rapid abandonment of a river channel and formation of a new channel
slope Stream pool Thalweg Bedrock river Canyon Knickpoint Plunge pool Bedforms Ait Antidune Dune Current ripple Regional processes Aggradation Base level
Avulsion_(river)
Fine-grained sediment that accumulates on the floor of the open ocean
Lithification Siltation Turbidity currents By structure Sedimentary structures Bedforms cross-bedding duness graded bedding ripple marks Alluvial fan Alluvial
Pelagic_sediment
Glacial-formed geographic feature
Young, R. R. (15 December 2008). "A meltwater origin for Antarctic shelf bedforms with special attention to megalineations". Geomorphology. 102 (3–4): 364–375
Tunnel_valley
Equatorial plain on Mars
rare but outstanding features. The soils come in fields with two main bedform types (i) smooth sheets (these are remarkably flat, and almost no sediment
Meridiani_Planum
found in topographic depressions on Mars. These small-scale and relict bedforms were first seen in narrow-angle images from the Mars Orbiter Camera (MOC)
Transverse_aeolian_ridges
where the rover investigated High dune, and Namib dune. Three orders of bedform were identified: wind ripple, large ripple (or wind drag ripple) and dune
List of extraterrestrial dune fields
List_of_extraterrestrial_dune_fields
Erg in Algeria and Tunisia
is included in "Hamitic". Nick Lancaster, "Development of large aeolian bedforms - time matters", Desert Research Institute, Reno, USA, without year, pp
Grand_Erg_Oriental
River in Poland
Mikołaj; Rajwa, Agnieszka; Luks, Bartłomiej; Rowiński, Paweł M. (2014). "Bedform characteristics in natural and regulated channels: A comparative field
Wilga_(Garwolin)
Accumulated material on seafloor
Lithification Siltation Turbidity currents By structure Sedimentary structures Bedforms cross-bedding duness graded bedding ripple marks Alluvial fan Alluvial
Marine_sediment
Streamlined gravel bar below an obstruction
outburst floods and jökulhlaups are longitudinal, expansion, and eddy bars. Bedform – Geological feature resulting from the movement of bed material by fluid
Pendant_bar
Landform shaped by erosion and deposition from glacial meltwater
abandon higher and older outwash plains. The sediment is deposited in bedforms ranging in scale from sand ripples a few centimeters across to gravel bars
Fluvioglacial_landform
Small iron oxide spherules found on Mars
soils and loose hematite spherules and sorted these into the layered soil bedforms that we can now see. The meteorite, gravity, and wind-driven processes
Martian_spherules
Digital Dune Database (MGD3): Global patterns of mineral composition and bedform stability". Icarus. 330: 189–203. Bibcode:2019Icar..330..189F. doi:10.1016/j
Spectroradiometry for Earth and planetary remote sensing
Spectroradiometry_for_Earth_and_planetary_remote_sensing
Sand dune field on Mars
area under investigation. Conversely, if the wind vectors are known, the bedform morphology can be predicted. By comparing the numerical simulation results
Hyperboreae_Undae
the Gloucester Fault Mer Bleue Bog Boreal peatland Victoria Island Dune bedforms and fossiliferous limestone Lady Grey Drive Ordovician limestone deposits
Geography_of_Ottawa
Deep and slow-moving stretch of a watercourse
slope Stream pool Thalweg Bedrock river Canyon Knickpoint Plunge pool Bedforms Ait Antidune Dune Current ripple Regional processes Aggradation Base level
Stream_pool
Boundary between bed sediment and the overlying water column
Lithification Siltation Turbidity currents By structure Sedimentary structures Bedforms cross-bedding duness graded bedding ripple marks Alluvial fan Alluvial
Sediment–water_interface
British geographer and academic
streamlining processes at Skálafellsjökull, Iceland: an analogue for a new bedform continuum model." GFF, DOI: 10.1080/11035897.2018.1477830. Martinez K,
Jane_K._Hart
Volcanic island in the Kermadec Islands
Chiocci, Francesco L.; Romagnoli, Claudia; Santos, Rùben (23 April 2020). "Bedforms on the submarine flanks of insular volcanoes: New insights gained from
Macauley_Island
Movement of sediment along coastal environments
Lithification Siltation Turbidity currents By structure Sedimentary structures Bedforms cross-bedding duness graded bedding ripple marks Alluvial fan Alluvial
Coastal_sediment_transport
Greek-born American engineering professor and university administrator
resilience of hydrokinetic turbine arrays under large migrating fluvial bedforms". Nature Energy. 3 (10): 839–846. Bibcode:2018NatEn...3..839M. doi:10
Fotis_Sotiropoulos
Research program involving a collaboration between the U.S. Navy and academic researchers
shelves in the Pleistocene Arctic Ocean inferred from glaciogenic deep-sea bedforms". Nature. 410 (6827): 453–457. Bibcode:2001Natur.410..453P. doi:10.1038/35068536
SCICEX
Region of the Sonoran Desert
shifted in position, basement topography has been altered continuously, and bedforms have been created, modified, or completely destroyed and then reworked
Gran_Desierto_de_Altar
Geologic formation in Northern Ontario
smaller. Other facies found in Gowganda include highly asymmetric, rippling bedforms; sandstone interbedded with diamictite, probably originating as turbidite;
Gowganda_Formation
Volcanic area in South Island, New Zealand
2015.03.019. Moorhouse, BL; White, JD (2016). "Interpreting ambiguous bedforms to distinguish subaerial base surge from subaqueous density current deposits"
Waiareka-Deborah volcanic field
Waiareka-Deborah_volcanic_field
One of three distributaries of the Danube River
"Multibeam Bathymetric Investigations of the Morphology and Associated Bedforms, Sulina Channel, Danube Delta". Geosciences. 8: 7. doi:10.3390/geosciences8010007
Sulina_branch
Region on the south coast of New Guinea
speculation based on stylistic similarities. Harris, P.T., 1988. Sediments, bedforms and bedload transport pathways on the continental shelf adjacent to Torres
Gulf_of_Papua
Wedge-shaped sediment deposit observed on coastlines and continental interiors
Maxwell, T.A. and Haynes, C.V., Jr., 1989. Large-scale, low-amplitude bedforms (chevrons) in the Selima Sand Sheet, Egypt: Science v. 243, p. 1179-1182
Chevron_(land_form)
(2011). "Lateral plucking as a mechanism for elongate erosional glacial bedforms: Explaining megagrooves in Britain and Canada". Earth Surface Processes
Megagroove
Component in the load of a river system
Indirect measurements can be performed by a tracer, repeated channel surveys, bedform velocimetry, or velocimetry. No one method is entirely satisfactory, but
Bed_material_load
Island in the South Sandwich Islands
which is scalloped by landslide scars. The submarine slopes have wave-like bedforms in many places. Smaller ridges emanate from the submarine volcano and are
Vindication_Island
Australian marine protection area
Sediment over consolidated bedform with a Ateleopus sp
Gifford_Marine_Park
associated horizons, the best explanation is that the trackways were formed on bedforms produced on a river bed, but while they were exposed by a low-flow period
Beacon_Supergroup
Israeli geographer
research interest has been in Planetary geology with a focus on aeolian bedforms and the use of remote sensing to study arid zone environments but in the
Dan_Blumberg
Vallis on Mars
diamond-shaped islands. Faint longitudinal striations and streamlined erosional bedforms are common all along the floor of the valley. (See Photo Gallery.) In fluvial
Enipeus_Vallis
Island of the Candlemas Islands in the South Sandwich Islands
which is scalloped by landslide scars. The submarine slopes have wave-like bedforms in many places. Smaller ridges emanate from the submarine volcano and are
Candlemas_Island
Species of plant in the manatee-grass family
Enriquez; Carlos M. Duarte (Jan 1994). "Migration of large-scale subaqueous bedforms measured with seagrasses (Cymodocea nodosa) as tracers". Limnology and
Cymodocea_nodosa
Marine geologist
shelves in the Pleistocene Arctic Ocean inferred from glaciogenic deep-sea bedforms". Nature. 410 (6827): 453–457. Bibcode:2001Natur.410..453P. doi:10.1038/35068536
Margo_Edwards
components. In headwaters streams, flowing water interacts with channel bedforms, stream banks and vegetation. These interactions result in reduced flow
Vulnerable_waters
Geologic formation in Panama
locally tuffaceous and exhibits, in some exposures, low-angle, dm-thick bedforms that are internally massive and dip perpendicularly to the overall attitude
Alajuela_Formation
Tableland feature on Mars
cyclic steps. Submarine cyclic steps are "rhythmic, upstream-migrating bedforms bounded by internal hydraulic jumps in overriding turbidity currents" according
Aeolis_Mensae
BEDFORM
BEDFORM
BEDFORM
BEDFORM
Girl/Female
Tamil
Padmasundari | பதà¯à®®à®¾à®‚ஸà¯à®¨à¯à®¤à®¾à®°à¯€Â
Beautiful like the lotus
Boy/Male
Gujarati, Hindu, Indian, Kannada, Punjabi, Sikh, Telugu
God's Light
Surname or Lastname
English (Lancashire and Yorkshire)
English (Lancashire and Yorkshire) : habitational name from Gartside or Garside in Oldham, Lancashire, apparently so named from northern Middle English garth ‘enclosure’ (Old Norse garðr) + side ‘hill slope’ (Old English sīde).
Girl/Female
Assamese, Celebrity, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Mythological, Oriya, Sanskrit, Tamil, Telugu, Traditional
A River; Goddess Saraswati
Girl/Female
Hindu
Joy, Of truth, Generous, A small flowing river or stream
Female
Egyptian
, ancient.
Surname or Lastname
English and Scottish
English and Scottish : variant spelling of Banks 1.
Boy/Male
British, English
From the East Cottage
Girl/Female
Hindu, Indian, Marathi
Pretty; Shy
Boy/Male
Indian, Sanskrit
Elephant Bellied
BEDFORM
BEDFORM
BEDFORM
BEDFORM
BEDFORM