Abstract
GEOPHYSICAL phenomena such as deep earthquakes seem to mark zones where the material of the Earth's surface is being drawn into the mantle. The processes concerned take place at geological rates, and it may be estimated that surface material takes a million years to reach a depth of 25 km. Nevertheless, the process is often locally concentrated, so that subsidence is accompanied by grossly intensified accumulation of sediment where it should be possible to dispose of unwanted material permanently and in unlimited quantity.
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BOSTROM, R., SHERIF, M. Disposal of Waste Material in Tectonic Sinks. Nature 228, 154–156 (1970). https://doi.org/10.1038/228154a0
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DOI: https://doi.org/10.1038/228154a0
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