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- noun Plural form of
Sorry, no etymologies found.
A survey of the ore deposits of Utah has suggested the generalization that ores are more commonly related to intrusive stocks than to the forms known as laccoliths, and that within and about intrusive stocks the ores are much more abundant near the top or apex of a stock than lower down. [
The plateau also has igneous laccoliths, flat-bottomed igneous intrusive bodies that dome up over the sedimentary rocks, such as the Henry, La Sal, Navajo, Abajo, Ute, and Carrizo Mountains of southeastern Utah and northern Arizona.
The intrusive masses may take various forms, called stocks, batholiths, laccoliths, sills, sheets and dikes, definitions and illustrations of which are given in any geological textbook.
Outflows of lava occurred along the Wasatch, the laccoliths of the Henry Mountains were formed, while the great masses of igneous rock which constitute the cores of the Spanish Peaks and other western mountains were thrust up amid the strata.
The base of bosses is indefinite or undetermined, and in this respect they differ from laccoliths.