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VI.—Berthelot's Principle applied to Magmatic Concentration1
Published online by Cambridge University Press: 01 May 2009
Extract
It is now a recognized fact that many igneous intrusions, especially of basic rocks, grow more basic in composition from the centre to the margin. This type, of what Vogt terms “magmatic concentration,” has been discussed by several geologists, who agree in supposing that in such cases a magma, originally homogeneous, has become differentiated by the migration of the less soluble (more basic) ingredients to the cooler marginal region of the magma-reservoir.
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- Copyright © Cambridge University Press 1893
Footnotes
A paper read before the Brit. Assoc., Section C, at the Nottingham meeting.
References
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