Caliche (mineral)

I had find many products about Mineral Water Plants from some websites such as


Handmade Ebony Black Imperial Chopsticks
Handmade Ebony black Imperial Chopsticks We are selected top class ebony black / Wu Mei / Purple /..


Printed Balloons
Features: 1) Name: 7" printed balloons 2) Customers' logos can be printed on as per requestsPacking:..And you can see more from hdpe dimpled membrane Rayon Crochet Thread poly wicker basket resin piglet bank fashionable fridge magnets petite and maternity synthetic fiber slings silicon oven mitt shenzhen cosmetic brush Caliche Forest on San Miguel Island.Caliche is a sedimentary rock, a hardened deposit of calcium carbonate. This calcium carbonate cements together other materials, including gravel, sand, clay, and silt. It is found in aridisol and mollisol soil orders. Caliche occurs worldwide, generally in arid or semi-arid regions, including in central and western Australia, in the Kalahari Desert, in the High Plains of the western USA, and in the Sonoran Desert. Caliche is also known as hardpan, calcrete, kankar (in India), or duricrust. The term caliche is Spanish and is originally from the Latin calx, meaning lime.Caliche is generally light colored but can range from white to light pink to reddish-brown, depending on the impurities present. It is generally found on or near the surface, but it can be found in deeper subsoil deposits as well. The layers can vary from a few inches to feet thick, and multiple layers can exist in a single location.In northern Chile and Peru, caliche also refers to mineral deposits that include nitrate salts.[1] Caliche can also refer to various clayey deposits in Mexico and Colombia. In addition, it has been used to describe some forms of quartzite, bauxite, kaolinite, laterite, chalcedony, opal, and soda niter.A similar material, composed of calcium sulfate rather than calcium carbonate, is called gypcrust or gypcrete ("Gyp-Crete" is also a trademarked brand name).Contents1 How it forms 2 Examples of natural occurrence 3 Economic uses 3.1 Building applications 3.2 Sugar refining 3.3 Chilean Caliche 4 Caliche and Gardening 4.1 Problems caused by Caliche 4.2 Fixing these problems 5 References 6 Further reading 7 External links // How it formsCaliche generally forms when minerals are leached from the upper layer of the soil (the A horizon) and accumulate in the next layer (the B horizon), at depths of approximately 3 to 10 feet under the surface. Caliche generally consists of carbonates in semiarid regions, while in arid regions, less soluble minerals will form caliche layers after all the carbonates have been leached from the soil. The calcium carbonate that is deposited accumulates, first forming grains, then small clumps, then a discernible layer, and finally a thicker, solid bed. As the caliche layer forms, the layer gradually becomes deeper, eventually moving into the parent material, which lies under the upper soil horizons.However, caliche can also form in other ways. It can form when water rises through capillary action. In an arid region, rainwater will sink into the ground very quickly. Later, as the surface dries out, the water below the surface will rise, carrying dissolved minerals from lower layers upward with it. This water movement forms a caliche that tends to grow thinner and branch out as it nears the surface. Plants can contribute to the formation of caliche as well. The plant roots take up water through transpiration, leaving behind the dissolved calcium carbonate, which precipitates to form caliche. Caliche can also form on outcrops of porous rocks or in rock fissures where water is trapped and evaporates. In general, caliche deposition is a slow process, but if enough moisture is present in an otherwise arid site, it can accumulate fast enough to block a drain pipe.Examples of natural occurrenceWhile the formation of other caliches is relatively well understood, the origin of Chilean caliche is not clearly known. One possibility is that the deposits were formed when a prehistoric inland sea evaporated. Another theory is that it was deposited due to weathering of the Andes.One of the world's largest deposits of calcrete is in the Makgadikgadi Pans in Botswana where surface calcretes occur at the location of a now desiccated prehistoric lake.[2]Caliche - Sedimentary Rock Ridgecrest Kern County CaliforniaEconomic usesBuilding applicationsCaliche (the Calcium carbonate mineral) is used in construction worldwide. The caliche reserves in the Llano Estacado in Texas can be used in the manufacture of Portland cement; the caliche meets the chemical composition requirements and has been used as a principal raw material in Portland cement production in at least one Texas plant. Where the calcium carbonate content is over 80%, caliche can also be fired and used as a source of lime in areas, which can then be used for soil stabilization.When mixed with small amounts of either pozzolan or Portland cement, caliche can also be used as a building material that will exceed the building code requirements for unfired masonry materials. For example, caliche was used to build some of the Mayan buildings in the Yucat Peninsula in Mexico. A dormitory in Ingram, Texas and a demonstration building in Carrizo Springs, Texas for the United States Department of...(and so on)


christmas angel decoration,angel..
christmas angel decoration,angel ornament,angel craft,angel figure Place of Origin: China Liaoning..
You can also see some feature products :pda data bank mercericed cotton socks water proof tarpaulins fitness / building vehicle car alarm automobile manufacturer logos bleecker denim signature screen printer.screen printing childrens outdoor playground municipal wholesale electric 4gb duo sony precious metal cleaner specs discount liquor apple bottom coats air ozone generator cheap clothes com discount wood toys paper @ packing fruit fragrance soaps slimming sculpture body blood cellurinebiochemical analyzers