Abstract
The preceding chapters showed time and again, that the different groups of phenomena are genetically related to one another, and that they have a common, deeper cause in a figurative as well as a literal sense, to which we referred repeatedly by means of such neutral designations as “processes in the substratum”, “changing conditions in the interior of the earth”, “deep-seated forces”, “pulsating rhythm of subcrustal processes”, etc.
“And the secret of it all is in the heart of the earth, forever invisible to human eyes”. (R.A. Daly)
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References
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© 1971 Martinus Nijhoff, The Hague, Netherlands
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Umbgrove, J.H.F. (1971). The Pulse of the Earth. In: The Pulse of the Earth. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-3017-5_12
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DOI: https://doi.org/10.1007/978-94-010-3017-5_12
Publisher Name: Springer, Dordrecht
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