Definitions

from The Century Dictionary.

  • Belonging to or resulting from pneumatolysis or the action of gases contained in molten rock-magmas. The vapors or gases escaping from molten magmas may act as mineralizers in adjacent rocks and be a source of some ore deposits.

Etymologies

Sorry, no etymologies found.

Examples

  • It is probable that the temperature was so high as to cause the solutions to be gaseous rather than liquid, and that what have been called "pneumatolytic" conditions prevailed; but evidence to decide this question is not at present available.

    The Economic Aspect of Geology

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