DR. IRVING is well known as a writer on Bagshot beds. He appears in a new light as the propounder of theories dealing with the metamorphism of rocks. His ideas on this subject are classified under three heads: paramorphism, metatropy, and metataxis. Paramorphism, according to the author, includes those changes within in the rock-mass, involving changes in the chemical composition of the original minerals and the formation of new minerals; metatropy denotes changes in the physical character of rock-masses; and metataxis, mechanical changes, such as the development of cleavage. Changes brought about by the introduction of a new, or the removal of an old mineral (e.g. dolomitization) are treated under the head of hyperphoric change.
Chemical and Physical Studies in th Metamorphism of Rocks, based on the Thesis written for the D.Sc. Degree in the University of London, 1888.
By the Rev. A. Irving (London: Longmans, Green, and Co. 1889.)
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Chemical and Physical Studies in th Metamorphism of Rocks, based on the Thesis written for the D.Sc. Degree in the University of London, 1888. Nature 41, 49 (1889). https://doi.org/10.1038/041049a0