Abstract
ORIGINALLY? the study of the crust of the earth was purely utilitarian: it seems to have been at first forced upon man by the necessity of exploring the strata in order to extract metallic ores, constructive materials, and combustible minerals.
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The Artificial Reproduction of Volcanic Rocks 1 . Nature 39, 271–277 (1889). https://doi.org/10.1038/039271b0
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DOI: https://doi.org/10.1038/039271b0