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Publication Extents

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Lake Superior seismic experiment
W. H. Jackson, B. L. Tibbetts
1964, Open-File Report 64-89
During the Lake Superior seismic experiment, an International Upper Mantle cooperative program in July 1965, the U. S. Geological Survey provided a total of 8 mobile seismic-recording systems. For the first phase of the experiment the systems were arranged in two groups of 4; one group at the western end...