pneumatolysis

pneu·ma·tol·y·sis

P0389500 (no͞o′mə-tŏl′ĭ-sĭs, nyo͞o′-)n. A process of rock alteration or mineral formation brought about by the action of gases emitted from solidifying magma.

pneu′ma·to·lyt′ic (-tə-lĭt′ĭk) adj.

pneumatolysis

(ˌnjuːməˈtɒlɪsɪs) n (Geological Science) a type of metamorphism in which hot gases from solidifying magma react with surrounding rock

pneumatolysis

the process by which ores and minerals are formed from the action of vapors produced by igneous magmas. — pneumatolytic, adj.See also: Geology

Pneumatolysis

enUK

pneumatolysis

[‚nü·mə′täl·ə·səs] (geology) Rock alteration or mineral crystallization effected by gaseous emanations from solidifying magma.

Pneumatolysis

mineral formation by the action on the country rock of volatile compounds released from magma, chiefly superheated water vapor; of compounds of B, P, S, and As; and of the fluorides and chlorides of tin, tungsten, beryllium, and lithium. Pneumatolysis is generally most evident in strata that enclose acidic intrusions (granites). Sometimes it is evident in strata that enclose alkali and basic intrusions, as well as in pegmatites, contact-metasomatic formations, and areas of volcanic eruptions. With the plutonic recrystallization of these formations, a group of pneumatolytic mineral deposits is formed as a consequence of pneumatolysis.

单词	pneumatolysis
释义	pneumatolysis enUK pneu·ma·tol·y·sis P0389500 (no͞o′mə-tŏl′ĭ-sĭs, nyo͞o′-)n. A process of rock alteration or mineral formation brought about by the action of gases emitted from solidifying magma. pneu′ma·to·lyt′ic (-tə-lĭt′ĭk) adj. pneumatolysis (ˌnjuːməˈtɒlɪsɪs) n (Geological Science) a type of metamorphism in which hot gases from solidifying magma react with surrounding rock pneumatolysis the process by which ores and minerals are formed from the action of vapors produced by igneous magmas. — pneumatolytic, adj.See also: Geology Pneumatolysis enUK pneumatolysis [‚nü·mə′täl·ə·səs] (geology) Rock alteration or mineral crystallization effected by gaseous emanations from solidifying magma. Pneumatolysis mineral formation by the action on the country rock of volatile compounds released from magma, chiefly superheated water vapor; of compounds of B, P, S, and As; and of the fluorides and chlorides of tin, tungsten, beryllium, and lithium. Pneumatolysis is generally most evident in strata that enclose acidic intrusions (granites). Sometimes it is evident in strata that enclose alkali and basic intrusions, as well as in pegmatites, contact-metasomatic formations, and areas of volcanic eruptions. With the plutonic recrystallization of these formations, a group of pneumatolytic mineral deposits is formed as a consequence of pneumatolysis.
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