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  2. Clay, sand, silt, loam: How different soils affect gardens - AOL

    www.aol.com/news/clay-sand-silt-loam-different...

    Both extremes in soil have their advantages and shortcomings. Sand particles are relatively large (by definition from 2- to 5-hundredths of a millimeter across). Clay particles are very small (by ...

  3. Unified Soil Classification System - Wikipedia

    en.wikipedia.org/wiki/Unified_Soil...

    Silty sand Fines classify as CL or CH SC Clayey sand FINE-GRAINED SOILS. 50% or more passes the no. 200 Sieve Silts and Clays. Liquid limit less than 50 Inorganic PI > 7 and plots on or above "A" line CL Lean clay PI < 4 and plots below "A" line ML Silt Organic Liquid limit—oven dried < 0.75 OL Organic clay Liquid limit—not dried OL Organic ...

  4. Soil texture - Wikipedia

    en.wikipedia.org/wiki/Soil_texture

    If the percentages of sand, clay, and silt in the soil sample are known, then the triangle can be used to determine the soil texture classification. For example, if a soil is 70 percent sand and 10 percent clay then the soil is classified as a sandy loam. The same method can be used starting on any side of the soil triangle.

  5. Silt - Wikipedia

    en.wikipedia.org/wiki/Silt

    Silt may occur as a soil (often mixed with sand or clay) or as sediment mixed in suspension with water. Silt usually has a floury feel when dry, and lacks plasticity when wet. Silt can also be felt by the tongue as granular when placed on the front teeth (even when mixed with clay particles). Silt is a common material, making up 45% of average ...

  6. Physical properties of soil - Wikipedia

    en.wikipedia.org/wiki/Physical_properties_of_soil

    [11] [12] Sand is least active, having the least specific surface area, followed by silt; clay is the most active. Sand's greatest benefit to soil is that it resists compaction and increases soil porosity, although this property stands only for pure sand, not for sand mixed with smaller minerals which fill the voids among sand grains. [13]

  7. Loam - Wikipedia

    en.wikipedia.org/wiki/Loam

    Soil types by clay, silt and sand composition as used by the United States Department of Agriculture. Loam (in geology and soil science) is soil composed mostly of sand (particle size > 63 micrometres (0.0025 in)), silt (particle size > 2 micrometres (7.9 × 10 −5 in)), and a smaller amount of clay (particle size < 2 micrometres (7.9 × 10 −5 in)).

  8. Water retention curve - Wikipedia

    en.wikipedia.org/wiki/Water_retention_curve

    In 1907, Edgar Buckingham created the first water retention curve. [2] It was measured and made for six soils varying in texture from sand to clay. The data came from experiments made on soil columns 48 inch tall, where a constant water level maintained about 2 inches above the bottom through periodic addition of water from a side tube.

  9. Drift (geology) - Wikipedia

    en.wikipedia.org/wiki/Drift_(geology)

    Rounded erratic boulders of crystalline rock composition next to Ordovician limestone bank along the shoreline in NW Osmussaar, Estonia.. In geology, drift is a name for all sediment (clay, silt, sand, gravel, boulders) transported by a glacier and deposited directly by or from the ice, or by glacial meltwater.

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