calcareous rock


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Related to calcareous rock: carbonaceous rock

calcareous rock:

see limestonelimestone,
sedimentary rock wholly or in large part composed of calcium carbonate. It is ordinarily white but may be colored by impurities, iron oxide making it brown, yellow, or red and carbon making it blue, black, or gray. The texture varies from coarse to fine.
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; marblemarble,
metamorphic rock composed wholly or in large part of calcite or dolomite crystals, the crystalline texture being the result of metamorphism of limestone by heat and pressure.
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References in periodicals archive ?
In 1911, Shell Bluff was described in the annual report of the Georgia Geologic Survey as a bluff of calcareous rock, which is sandy and argillaceous marl (Veatch and Stephenson 1911).
It should be pointed out that the soils in the region originated from calcareous rocks, naturally showing medium or weak acidity, Fe and Mn concretions and low P contents.
Potassium levels may be low in soils developed from, for example, calcareous rock. However, its rapid recycling in the plant and between the plant and soil, and the soil's effectiveness at retaining potassium in an assimilable form, make it unlikely that plant communities will suffer from deficiencies.
The Arboretum also differed from Awenda by being in an urban setting, being heavily managed and disturbed, having mostly calcareous rocks, lacking a coastline, and the search effort for species was much greater (McMullin et al, 2014).
(1973a) described the Staurotheletum solventis from submerged calcareous rocks of the high-mountain regions of France that cannot be placed within any currently recognised alliance.
Calcareous rocks are the raw materials consumed by various industries and agriculture [1].
This park is formed of slightly sloping hills and high calcareous rocks. Its climate is very damp and in some places dry.
In the M-1 and M-2 wells, the rocks located in the bottom are composed of intercalations of bioclastic rocks (biocalcarenite, intracalcarenite, calcarenite) and fine-grained calcareous rocks (calcareous shale, mudstones and micrites), (middle Eocene), and have a thickness of 518 m to 883 m.
- At Bartel near Cleve on Eyre Peninsula, free gold was recorded in a petrological sample of highly altered brecciated calcareous rocks. Field mapping also reported further fluorite identified along strike from Bartel.
Fossil Bryozoa are most abundant in calcareous rocks such as limestone, calcareous shale and shaly marls, occur mainly in shelves and around coral reefs [9].
For this, the pulling head was equipped with a special ploughshare to dislodge and displace any calcareous rocks and to carry out pre-trenching operations.