Auteur Claus H. Hetzer
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Tom T. Goforth, Auteur ; Claus H. Hetzer, Auteur ; Stump, Brian W., Auteur |This study utilized seismograms from the U.S. Geological Survey seismological station near Ely, Minnesota, at which 39 delay-fired explosions at the U.S. Steel Minntac iron mine in Mountain Iron, Minnesota, were recorded. The waveforms were anal[...]
