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Clay is a type of fine-grained natural soil material containing clay minerals [1] (hydrous aluminium phyllosilicates, e.g. kaolinite, Al 2 Si 2 O 5 ( OH) 4 ). Most pure clay minerals are white or light-coloured, but natural clays show a variety of colours from impurities, such as a reddish or brownish colour from small amounts of iron oxide.
Claypan. Claypan is a dense, compact, slowly permeable layer in the subsoil. [1] It has a much higher clay content than the overlying material, from which it is separated by a sharply defined boundary. The dense structure restricts root growth and water infiltration. Therefore, a perched water table might form on top of the claypan. [2]
Garden gnome: a small, generally colorful gnome statuette. Human form: a depiction of a human being. Human form lawn ornaments can be two-dimensional, generally vertically supported by being thrust in the ground, or three-dimensional. Examples of human form lawn ornaments include the concrete Aboriginal, lawn jockey and groomsman.
Huishan clay figurine ( Chinese: 惠山泥人; pinyin: Huìshān ní rén) is a traditional Chinese folk art in Wuxi, Jiangsu Province, China, with a history of more than 400 years. [1] [2] The production of Wuxi Huishan clay figurines began at the end of the Ming dynasty and developed in the Qing dynasty with specialized Huishan clay ...
Expansive clay is a clay soil that is prone to large volume changes (swelling and shrinking) that are directly related to changes in water content. Soils with a high content of expansive minerals can form deep cracks in drier seasons or years; such soils are called vertisols.
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 ...