Igneous intrusion: Difference between revisions
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A '''pluton''' in [[geology]] is an [[intrusive]] [[igneous rock]] (called a '''plutonic rock''') body that crystallized from [[magma]] slowly cooling below the surface of the [[Earth]]. Plutons include [[batholith]]s, [[dike (geology)|dikes]], [[Sill (geology)|sills]], [[laccolith]]s, [[lopolith]]s, and other igneous bodies. In practice, "pluton" usually refers to a distinctive mass of igneous rock, typically kilometers in dimension, without a tabular shape like those of dikes and sills. Batholiths commonly are aggregations of plutons. The most common rock types in plutons are [[granite]], [[granodiorite]], [[tonalite]], [[monzonite]], and [[quartz diorite]]. The term granitoid is used for a general, light colored, coarse-grained igneous rock in which a proper, or more specific name, is not known. Use of granitoid should be restricted to the field wherever possible. |
A '''pluton''' in [[geology]] is an [[intrusive]] [[igneous rock]] (called a '''plutonic rock''') body that crystallized from [[magma]] slowly cooling below the surface of the [[Earth]]. Plutons include [[batholith]]s, [[dike (geology)|dikes]], [[Sill (geology)|sills]], [[laccolith]]s, [[lopolith]]s, and other igneous bodies. In practice, "pluton" usually refers to a distinctive mass of igneous rock, typically kilometers in dimension, without a tabular shape like those of dikes and sills. Batholiths commonly are aggregations of plutons. The most common rock types in plutons are [[granite]], [[granodiorite]], [[tonalite]], [[monzonite]], and [[quartz diorite]]. The term granitoid is used for a general, light colored, coarse-grained igneous rock in which a proper, or more specific name, is not known. Use of granitoid should be restricted to the field wherever possible. |
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The term originated from ''[[Pluto (god)|Pluto]]'', the ancient Roman god of the underworld. The use of the name and concept goes back to the beginnings of the science of geology in the late 1700s and the then hotly debated theories of [[ |
The term originated from ''[[Pluto (god)|Pluto]]'', the ancient Roman god of the underworld. The use of the name and concept goes back to the beginnings of the science of geology in the late 1700s and the then hotly debated theories of [[Plutonism]] (or Vulcanism), and [[Neptunism]] regarding the origin of [[basalt]]. |
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== See also == |
== See also == |
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Revision as of 13:39, 3 May 2010
- Plutonic redirects here, for the Austrlian gold mine see Plutonic Gold Mine
A pluton in geology is an intrusive igneous rock (called a plutonic rock) body that crystallized from magma slowly cooling below the surface of the Earth. Plutons include batholiths, dikes, sills, laccoliths, lopoliths, and other igneous bodies. In practice, "pluton" usually refers to a distinctive mass of igneous rock, typically kilometers in dimension, without a tabular shape like those of dikes and sills. Batholiths commonly are aggregations of plutons. The most common rock types in plutons are granite, granodiorite, tonalite, monzonite, and quartz diorite. The term granitoid is used for a general, light colored, coarse-grained igneous rock in which a proper, or more specific name, is not known. Use of granitoid should be restricted to the field wherever possible.
The term originated from Pluto, the ancient Roman god of the underworld. The use of the name and concept goes back to the beginnings of the science of geology in the late 1700s and the then hotly debated theories of Plutonism (or Vulcanism), and Neptunism regarding the origin of basalt.
See also
References
- Glazner, A.F., Bartley, J.M., Coleman, D.S., Gray, W. and Taylor, R.Z. (2004) "Are plutons assembled over millions of years by amalgamation from small magma chambers?", GSA Today, 14 (4:April), p. 4–11
- Young, Davis A. (2003) Mind Over Magma: the Story of Igneous Petrology, Princeton University Press, ISBN 0-691-10279-1
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