Results 251 to 260 of about 636,297 (295)

A Geomorphological Approach to Carbonate Sand Searches

Carbonate Beaches 2000, 2002
Geophysical data obtained during an offshore geotechnical sand-search defined the surficial extent and sub-bottom configuration of geomorphological features such as reef tracts, infills of carbonate sediments within back reef troughs, and karstified rock outcrops along the upper shorefaee. Coastal process zones (CPZ) were derived from interpretation of
Charles W. Finkl, Syed M. Khalil, Richard H. Spadoni   +2 more
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Sand Fracturing The Slave Point Carbonate

Journal of Canadian Petroleum Technology, 1986
Abstract The Slave Point carbonate in the Red Earth – Loon Lake area of Alberta is generally regarded as a secondary prospect to the area's prolific Granite Wash zone. Since late 1980, large sand fracture treatments have been used to stimulate newly completed and producing Slave Point zones with some impressive ...
R.G. MacDonald, K.E.J. Frank
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The mechanics of uncemented carbonate sands

Géotechnique, 1990
The mechanical behaviour of a typical biogenic carbonate sand was investigated using triaxial testing at standard and also at high pressures up to 8 MPa. The test results show that despite the particle breakage which is characteristic of these soils, their behaviour is still qualitatively similar to that observed for more commonly encountered soils ...
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Fluidized bed elutriation of carbonate sands

Sedimentology, 1980
ABSTRACTElutriation from a fluidized bed provides an accurate, economical, direct method of sediment grading by terminal velocity. This is of particular value in studying populations of irregular particles in the range medium sand to granule (e.g. carbonate sands).
B. COOKER, R. GOODWIN
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Carbonate Sands-A Core Workshop

1984
Abstract Carbonate sands, both skeletal and non-skeletal, have been studied by geologists as intensely as carbonate buildups. The underlying reason for the studies is the importance of those sands as significant hydrocarbon reservoirs.
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The undrained cyclic behaviour of a carbonate sand

Géotechnique, 2007
A series of undrained cyclic triaxial tests was carried out on a carbonate sand that had previously been the subject of extensive research for monotonic loading. It was found that the generation of pore pressures under cyclic loading depended on the same factors as they did for monotonic loading, so that the state of the soil in the plane of specific ...
A. Qadimi, M. R. Coop
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Carbonate sand bodies of Florida and the Bahamas

Journal of Sedimentary Research, 1967
Abstract The report classifies sand bodies of the Florida-Bahamas area in order to facilitate their description. Types within this classification are marine sand belts, belts of tidal bars, eolian ridges, and platform interior sand blankets.
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Properties of Artificially Cemented Carbonate Sand

Journal of Geotechnical and Geoenvironmental Engineering, 1998
Naturally cemented materials often have inherent variabilities in density and degree of cementation. The influence of this variability on the properties of cemented materials is investigated by producing artificially cemented specimens at dry unit weights ranging from 12 to 19 kN/m3 and gypsum cement contents ranging from 0% to 20%.
J. T. Huang, D. W. Airey
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Carbonated Ladle Slag Fines for Carbon Uptake and Sand Substitute

Journal of Materials in Civil Engineering, 2009
The possibility of using a carbonated ladle slag as a fine aggregate in concrete was investigated. The slag was treated with carbon dioxide to reduce the free lime content while binding gaseous CO2 into solid carbonates. The treatment took place with either a high concentration of CO2 at 500 kPa for 2 hours or with a low concentration of CO2 at ...
Sean Monkman, Yixin Shao, Caijun Shi
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Repetitive Compression Tests on a Carbonate Sand

2014
Existing studies on breakage suggest that the ultimate state is dependent on the particular particle arrangement which results from a given test methodology. Further breakage of the particles is possible when the particle arrangement is disrupted and then reloaded. Thus, there is uncertainty about the concept and utility of an ultimate grading.
Guien Miao, David W. Airey
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