1-20 OF 75 RESULTS FOR

scour

Results shown limited to content with bounding coordinates.
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article
Journal: Interpretation
Published: 11 May 2020
Interpretation (2020) 8 (3): SM39–SM52.
..., dominated the sediment transport and deposition at the shallow-water delta front, where the effluent flow mixes with lake water. The distributary channels show characteristics of repeatedly occurred erosion, scouring, filling, and reoccupation. We argue that the depositional characteristics are associated...
FIGURES | View All (13)
Journal Article
Published: 01 December 2019
South African Journal of Geology (2019) 122 (4): 555–560.
.... The erosive school of thoughts holds that potholes form due to: mechanical scouring of loosely consolidated cumulates by magmatic convection currents ( Schmidt, 1952 ) or crystal-rich slurries ( Maier et al., 2013 ); remelting and dissolution of cumulates by hot/superheated melt replenishing...
FIGURES
Journal Article
Published: 19 November 2019
Petroleum Geoscience (2019) 25 (4): 519–531.
...God'spower I. Onyenanu; Gary J. Hampson; Peter J. R. Fitch; Matthew D. Jackson Abstract The reservoir properties of distal lower-shoreface and distal wave-dominated delta-front deposits, which consist of sandstone beds with locally scoured bases and mudstone interbeds, are poorly understood...
FIGURES | View All (12)
Journal Article
Published: 21 October 2019
Journal of Sedimentary Research (2019) 89 (10): 919–934.
... in scouring the June Lake basin, including a prominent abraded bedrock shoal and an adjacent overdeepened depression. The seismic survey reveals four acoustically distinct stratigraphic units that reflect the history of sedimentation following glacial scouring. The youngest of these is represented...
FIGURES | View All (10)
Journal Article
Published: 27 August 2019
Journal of Sedimentary Research (2019) 89 (8): 741–760.
... the dune field evolves. Mapping of outcrop-scale surfaces and sets of cross-strata between these surfaces for the Jurassic Page Sandstone near Page, Arizona, USA, demonstrates that the stratigraphic signature of autogenic behavior is captured by variable scour depths and subsequent fillings, whereas...
FIGURES | View All (19)
Journal Article
Published: 17 July 2019
Scottish Journal of Geology (2019) 55 (2): 155–165.
... of large glaciers then occupying the adjacent valleys of Loch Broom and Little Loch Broom. The second much larger and more prominent deposit, in Applecross, is composed of bouldery Torridonian sandstone till emplaced on to glacially scoured bedrock; the only feasible source location for this material...
FIGURES | View All (11)
Journal Article
Published: 12 March 2019
Journal of Sedimentary Research (2019) 89 (3): 199–206.
... southern Australia, to describe middle Eocene to Recent contourites deposited in an overall carbonate-dominated succession. These deposits comprise large (100 m wavelength by up to 50 m tall) bedforms and deep (10–90 m), wide (up to 3 km) erosional scours. The scours are particularly well developed at one...
FIGURES | View All (5)
Journal Article
Published: 28 September 2018
Petroleum Geoscience (2019) 25 (2): 235–248.
... scours and the effective vertical-to-horizontal permeability ratio ( k v / k h ) of such intervals. The proportion of sandstone is controlled by sandstone-bed and mudstone-interbed thickness, and by parameters that describe the geometry, dimensions and lateral-stacking density of sandstone-filled scours...
FIGURES | View All (14)
Journal Article
Journal: Geology
Published: 12 July 2018
Geology (2018) 46 (8): 707–710.
... (allogenic) drivers such as climate and tectonics. However, intrinsic (autogenic) river dynamics can also create a rich stratigraphic architecture in the absence of allogenic changes. Here, we outline scaling relationships for the expected depth and length scales of autogenic scour resulting from non-uniform...
FIGURES
Journal Article
Published: 14 February 2018
Environmental and Engineering Geoscience (2018) 24 (1): 121–136.
... seepage through the glacial outwash foundation as well as through a network of open joints within the left bedrock abutment. Seepage in the bedrock abutment could erode/scour the dam embankment at the bedrock contact, potentially leading to dam failure. To lower this potential risk of dam failure...
FIGURES | View All (23)
Journal Article
Published: 17 October 2017
Journal of Sedimentary Research (2017) 87 (10): 1049–1059.
.... The cores also show several mud-rich (9–18%) poorly sorted sands, probably indicating deposition from more cohesive flows. The high-resolution bathymetry shows large sectors of the seafloor sculpted by elaborate bedforms and scours. The overbank area north of the channel exhibits the most numerous...
FIGURES | View All (9)
Journal Article
Published: 01 August 2017
Environmental and Engineering Geoscience (2017) 23 (3): 221–241.
...William L. Niemann; Isaac W. Wait; Jeffrey R. Keaton Abstract Based on an assessment of rock scour at 15 bridges across West Virginia, a risk-based screening strategy is proposed that accounts for both mode of scour and stream power. The proposed strategy is a result of research conducted to 1...
FIGURES | View All (15)
Journal Article
Published: 01 August 2016
Journal of Sedimentary Research (2016) 86 (8): 929–943.
... but wide scour structures showing evidence of lateral expansion by sand injection. The scours commonly occur at the base of beds made up of a basal clean sandstone overlain by argillaceous sandstone containing abundant mudstone clasts and locally large substrate rafts (up to 20 meters long). These strata...
FIGURES | View All (9)
Journal Article
Published: 13 May 2016
Quarterly Journal of Engineering Geology and Hydrogeology (2016) 49 (2): 154–169.
...R. E. Kristinof; G. Marketos Abstract Laboratory tests have been undertaken on a relatively undisturbed sample of a mudline clay that was retrieved from within a giant scour from c. 4600 m below sea-level in the Atlantic Ocean to the west of the Iberian Peninsula. The geotechnical tests reported...
FIGURES | View All (15)
Journal Article
Published: 23 December 2015
Journal of the Geological Society (2016) 173 (2): 241–244.
... to physical disruption of substrate by bioturbation, is reinterpreted as reflecting increased depth of carbonate precipitation below the Taphonomically Active Zone such that early lithified carbonates were less frequently reworked by scour. With deeper, more stable zones of cementation, exhumed limestones...
FIGURES | View All (4)
Journal Article
Published: 06 October 2015
Journal of the Geological Society (2016) 173 (1): 12–45.
... alternating laminae or layers of sand and mud; (2) the preservation of low-amplitude bed-waves, large current ripples and bed scours with intrascour composite bedforms; (3) low-angle cross-lamination and long lenses and streaks of sand and mud formed by bed-waves; (4) complex stacking of reverse bedforms, mud...
FIGURES | View All (29)
Journal Article
Journal: GSA Bulletin
Published: 01 May 2015
GSA Bulletin (2015) 127 (5-6): 804–824.
... trains of scours identified on a terrace of the South Taiwan Shoal canyon are oriented parallel to the distributaries draining over the terrace and roughly perpendicular to the main canyon thalweg, indicating a complicated flow pattern within the canyon valley. Two trains of scours separated...
FIGURES | View All (18)
Journal Article
Published: 01 May 2015
Journal of Sedimentary Research (2015) 85 (5): 445–458.
...Mohammad S. Ullah; Janok P. Bhattacharya; William R. Dupre A bstract : Confluence scours in braided rivers occur where channel threads join together, producing erosional relief that may be considerably deeper than average channel depth. Based on studies of the continental-scale Ganges–Brahmaputra...
FIGURES | View All (12)
Journal Article
Published: 01 December 2014
Bulletin of Canadian Petroleum Geology (2014) 62 (4): 217–231.
... the area is more prone to the effects of iceberg scour and sea ice. Geohazards on the Baffin Shelf include hydrocarbon venting features, uneven seabed caused by glacial seabed features, seabed instability and sediment transport at trough margins, ice scour, and a high level of seismic activity. 06 11...
FIGURES | View All (12)
Journal Article
Published: 01 November 2014
Environmental and Engineering Geoscience (2014) 20 (4): 335–348.
FIGURES | View All (11)