Plutonic action
Plutonic Plu*ton"ic, a. [Cf. F. plutonique. See {Pluto}.] 1. Of or pertaining to Pluto; Plutonian; hence, pertaining to the interior of the earth; subterranean. [1913 Webster]

2. Of, pertaining to, or designating, the system of the Plutonists; igneous; as, the Plutonic theory. [1913 Webster]

{Plutonic action} (Geol.), the influence of volcanic heat and other subterranean forces under pressure.

{Plutonic rocks} (Geol.), granite, porphyry, and some other igneous rocks, supposed to have consolidated from a melted state at a great depth from the surface. Cf. {Intrusive rocks}, under {Intrusive}.

{Plutonic theory}. (Geol.) See {Plutonism}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Plutonic — Plu*ton ic, a. [Cf. F. plutonique. See {Pluto}.] 1. Of or pertaining to Pluto; Plutonian; hence, pertaining to the interior of the earth; subterranean. [1913 Webster] 2. Of, pertaining to, or designating, the system of the Plutonists; igneous; as …   The Collaborative International Dictionary of English

  • Plutonic rocks — Plutonic Plu*ton ic, a. [Cf. F. plutonique. See {Pluto}.] 1. Of or pertaining to Pluto; Plutonian; hence, pertaining to the interior of the earth; subterranean. [1913 Webster] 2. Of, pertaining to, or designating, the system of the Plutonists;… …   The Collaborative International Dictionary of English

  • Plutonic theory — Plutonic Plu*ton ic, a. [Cf. F. plutonique. See {Pluto}.] 1. Of or pertaining to Pluto; Plutonian; hence, pertaining to the interior of the earth; subterranean. [1913 Webster] 2. Of, pertaining to, or designating, the system of the Plutonists;… …   The Collaborative International Dictionary of English

  • plutonic — pertaining to or involving intense heat deep in the earth s crust, 1796, from PLUTO (Cf. Pluto) (q.v.) as god of the underworld; especially in ref. to early 19c. geological theory (championed by Hutton) that attributed most of the earth s… …   Etymology dictionary

  • Vulcanology — Vul can*ol o*gy, n. [See {Vulcan}, and { logy}.] The science which treats of phenomena due to plutonic action, as in volcanoes, hot springs, etc. [R.] [1913 Webster] …   The Collaborative International Dictionary of English

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