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Laccolith

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laccolith [′lakĀ·ə‚lith]
(geology)
A body of igneous rock intruding into sedimentary rocks so that the overlying strata have been notably lifted by the force of intrusion.

Laccolith 

mushroom-shaped (bun-shaped) mass of igneous rock formed when magma intrudes between layers of sedimentary rock; the layers of sedimentary rock are moved apart and raised in a domelike shape above the intrusion.



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302 QE611 A second workshop and field trip on laccoliths, sills, and dykes was held on the Isle of Skye, Scotland, in April 2006 to provide updates on the study of high-level magmatic systems during the four years since the first.
Robert Nott A rockin' lecture How many times have you debated with friends about the precise nature of diapirs and Cambrian "worm" burrows, not to mention sabkhas, laccoliths, and ergs?
Kelsey-Fry (still representing Fallon) observes that Murrihy "opined", a word that, along with rostral and laccolith, you very rarely hear.
 
 
 
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