Laccolith
- Noun
A mass of igneous rock intruded between sedimentary beds and resulting in a mammiform bulging of the overlying strata.
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Laccolith
A laccolith is a sheet-like intrusion (or concordant pluton ) that has been injected between layers of sedimentary rock. The pressure of the magma is high enough that the overlying strata are forced upward, giving the laccolith a dome or mushroom -like form (or possibly conical or wedge-shaped) with a generally planar base. Over time, erosion can form small hills and even mountains around a central peak. The development of laccoliths may take hundreds or thousands of years of related igneous activity as well as a very lengthy period to expose the intrusions at the surface.
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Laccoliths
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Cactolith
A cactolith is "a quasihorizontal chonolith composed of anastomosing ductoliths whose distal ends curl like a harpolith, thin like a sphenolith, or bulge discordantly like an akmolith or ethmolith."
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Coccolith
Coccoliths are individual plates of calcium carbonate formed by coccolithophores (single-celled algae such as Emiliania huxleyi ) which are arranged around them in a coccosphere.
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Lactol
In organic chemistry, a lactol is the cyclic equivalent of a hemiacetal or a hemiketal. The compound is formed by the intramolecular nucleophilic addition of a hydroxyl group to the carbonyl group of an aldehyde or a ketone.
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Coccolithus
Coccolithus is a genus of haptophytes.
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List of communes of the Province of Ascoli Piceno
The following is a list of the 33 comuni of the Province of Ascoli Piceno, Marche, in Italy.