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Calcareous is used as an adjectival term applied to anatomical structures which are made primarily of calcium carbonate, in animals such as gastropods, i.e., snails, specifically in relation to such structures as the operculum, the clausilium, and the love dart.
Acarospora stapfiana typically grows on calcareous rocks, but is also found on sandstone, granitic, and volcanic rocks. [3] It is parasitic on species of the genus Caloplaca (in the broad sense; the genus Caloplaca has been split into many smaller genera), particularly saxicolous (rock-dwelling) species. It has been recorded in various regions ...
Soil components larger than 2.0 mm (0.079 in) are classed as rock and gravel and are removed before determining the percentages of the remaining components and the textural class of the soil, but are included in the name. For example, a sandy loam soil with 20% gravel would be called gravelly sandy loam.
Predominantly distributed in the southwestern part of North America, Tomnashia is found mainly on calcareous rock and soil, but it can also grow on non-calcareous rocks. . Some related genera, such as Polycauliona and Igneoplaca, share a similar, relatively limited distribution in coastal southwestern North Ame
Calcareous speleothems form via carbonate dissolution reactions whereby rainwater reacts with soil CO 2 to create weakly acidic water via the reaction: [3] H 2 O + CO 2 → H 2 CO 3. As the acidic water travels through the calcium carbonate bedrock from the surface to the cave ceiling, it dissolves the bedrock via the reaction: CaCO 3 + H 2 CO ...
The Bahama Banks are an example of a carbonate platform A carbonate platform is a sedimentary body which possesses topographic relief, and is composed of autochthonic calcareous deposits. [ 1 ] Platform growth is mediated by sessile organisms whose skeletons build up the reef or by organisms (usually microbes ) which induce carbonate ...
Also called Indianite. A mineral from the lime-rich end of the plagioclase group of minerals. Anorthites are usually silicates of calcium and aluminium occurring in some basic igneous rocks, typically those produced by the contact metamorphism of impure calcareous sediments. anticline An arched fold in which the layers usually dip away from the fold axis. Contrast syncline. aphanic Having the ...
The use of soil tests, coupled with the corresponding provisions, can alleviate issues of nutrition and irrigation that can result from non porous Ultisol. [4] Soil tests help indicate the pH, and red clay soil typically has a low pH. [5] The addition of lime is used to help to increase the pH in soil and can help increase the pH in Ultisol as ...