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Showing 1 to 20 of 59 for “"Silty clay"”.
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Shear strength of a compacted silty clay
Thesis (M.S.)--Michigan State University of Agriculture and Applied Science. Dept. of Civil Engineering, 1959
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Laboratory compaction of a silty clay to simulate field density curves
Thesis (M.S.) Massachusetts Institute of Technology. Dept. of Civil and Sanitary Engineering, 1956.
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An investigation into using rammed stone columns for the improvement of a South African silty clay
… aimed at improving both cohesive soils and silty sands. Although the technique has been used successfully in many advanced countries, its application in South Africa is minimal. This limited use is associated with a lack of research, instrumented case studies and design specifications …
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The geohydrology and hydrogeochemistry of the proposed Garrison Lignite Mine
… at the proposed mine site is mostly fluvial silty clay deposits with some sand beds. Pleistocene deposits, mostly pebble loam (till), cover the Sentinel Butte at the mine site.</p> <p>Ninety piezometers in twenty-eight nests were installed at the Proposed Garrison Lignite Mine. Data from …
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Environmental dynamics of Benomyl and Thiabendazole
… phases of a laboratory microcosm comprised of silty clay loam soil and plants. The soil component constituted a major relocation site, with approximately 45 and 75% of initial Benomyl (recovered as MBC) and Thiabendazole concentrations being recovered from the soil component of the microcosm, …
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Availability and Surface Runoff of Phosphorus from Compost Amended Mid-Atlantic Soils
… fine sandy loam (Typic Hapludult) and a Fauquier silty clay loam (Ultic Hapludalf), amended with one of 4 composts (2 biosolids composts and 2 poultry litter - yard waste composts), poultry litter, or inorganic P (as KH2PO4) in incubation and greenhouse pot studies. We also compared the effects of …
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Estimating daily green leaf area index for corn in Virginia
… collected from corn plants grown on Davidson silty clay loam, Davidson silty clay, and Mayodan sandy loam soils in the Piedmont region of the State. Maximum and minimum temperature data were also collected at the three sites. Measurements were made for two growing seasons using corn hybrid …
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The Distribution and Ecology of Two Kinosternid Turtles in Iowa
… is restricted to permanent water with Colo silty clay loam, aquolls, Ankeny sandy loam or other alluvial soils. While stinkpots will tkse ephemeral pools, permanent water must be nearby. Although mud turtles may occasionally be found in permanent bodies of water, we suspect that this …
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Metal Extraction From Soil Samples By Chelation in a Microwave System
… types of soils (Bertie Sandy Loam, Davidson Silty Clay, and Davidson Clayey Loam) as well as sea sand, alumina, and iron oxide. In order to investigate the effects of sorptive coatings on metal concentrations, a sample set was first treated with humic acids, which represented organic coated …
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Análise de fundações de máquinas sujeitas a excitações verticais
… research purpose, test results carried out on silty clay soil from Vicksburg (WES) (USA), sandy soils of Eglin (USA) and silty sand from Volta Redonda (BRAZIL) are analysed. The Brazilian soil was of young residual gneiss type. Finally, this work, also, shows design criteria, calculations …
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Effects of excess nitrogen on growth, flowering and fruit set of bell pepper (Capsicum annuum L.)
Field experiments were conducted on a Flanagan Silty Clay Loam to investigate the influence of excess N at transplanting a growth, yield and fruit set of bell pepper (Capsicum annuum L. cv. 'Lady Bell'). The rates were 112, 224, 336 and 448 kg N/ha. Excess N at transplanting did not stimulate …
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Fate of the herbicide clomazone in soil
… application to the surface of a Flanagan silty clay loam. Degradation of clomazone was a biologically-dependent process. Following incubation for 84 days at 5 to 35$\sp\circ$C or 100 to 1500 kPa soil water tension, 59% or more of applied clomazone was extracted from soil as parent …
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Glacial geology and stratigraphy of southeastern Pierce and southwestern Benson counties, North Dakota
… <p>The Oahe Formation consists of fine sand, silty clay, and organic-rich clay; it is most common in abandoned river channels and in depressions.</p> <p>Although most previous studies have interpreted the surface till to be the result of supraglacial processes (ablation), the till fabric data …
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The Hydrogeology of Nags Head Woods, Dare County, North Carolina
… surficial (water table) aquifer, underlain by silty fine-to-coarse sands at -4 m elevation. A silty clay bed of very low permeability is present at -12 m to -21 m elevation.</p> <p>The natural water table across the island forms an elongate dome which crests east and northeast of Fresh Pond. …
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ΤΑΞΙΝΟΜΗΣΗ ΚΑΙ ΕΚΤΙΜΗΣΗ ΠΕΔΙΝΩΝ ΕΔΑΦΩΝ ΛΕΥΚΟΚΑΛΛΙΕΡΓΕΙΑΣ ΣΤΗ Β. ΕΛΛΑΔΑ
… POPLAR CLASSES I AND II, ARE SANDY, LOAMY AND CLAY LOAMYSOILS WITH GROUND WATER SURFACE BETWEEN 80CM AND 250CM MOST OF THE YEAR. LIGHTTEXTURED SOILS, LOAMY SAND WITH RICH IN ORGANIC MATTER HORIZONS IN DEPTH MORE THAN 80CM, OR CLAY AND SILTY CLAY SOILS WITH ADEQUATE ORGANIC MATTER WITH GOOD …
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Għadira sands as compared to normally consolidated deposits at Marsa (Ta’ Ċeppuna) : using static triaxial tests
… such sands tend to behave like over consolidated clays. On the contrary, the response of alluvial deposits is similar to that of normally consolidated clays. For the alluvial deposits, it was generally observed that as the confining pressures were increased, dilatant tendencies were observed to …
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The biodegradation of valeric, butyric, propionic and acetic acids in anoxic, subsurface, soil environments
… soil, from Blacksburg, Virginia, consisted of a silty-clay collected beneath a wooded hilltop. Microcosms containing the soil were characterized by : a pH between 4 and 5, little sulfate utilization with no visible iron sulfide precipitation, an increase in degradation rates upon the addition of …
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Preliminary Study of Lake Agassiz Sediments
… from the bottom to the top: Unit 1, gravelly clay loam; Unit 2, gray clay with gravel; Unit 3, dark gray silty clay loam; Unit 4, grayish brown sand; Unit 5, dark gray clay; Unit 6, gray clay with gravel; Unit 7, dark gray clay; Unit 8, gray clay with silt; Unit 9, brown silty loam. The merits …
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REACTIVE TRANSPORT OF IRON AND HYDROCHAR COLLOIDS IN A HYDROCARBON-CONTAMINATED SUBSURFACE ENVIRONMENT
… hydrochar attachment onto and detachment from a silty-clay soil. Equilibrium and non-equilibrium advection-dispersion equations were employed to model break- through curves obtained from the miscible displacement experiments, and a pseudo-first order kinetic equation was used to determine the …
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Review of Underground Tunneling Techniques at the New Irvington Tunnel in San Francisco, California and the Virginia and Truckee Railroad in Virginia City, Nevada
… highly altered Alta Formation andesite and has silty clay surrounding its failure zone. The west side of the tunnel has a blocky joint condition with the joints crossing each other. The joint orientations on the east side are parallel to each other and the material is of a higher degree of …
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