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The AAPG/Datapages Combined Publications Database
Journal of Sedimentary Research (SEPM)
Abstract
Fathogram Indications of Bottom Materials in Lake Michigan
J. L. Hough
ABSTRACT
Fathograms recorded by a commercial sonic sounding apparatus used in a study of the bottom sediments of Lake Michigan show characteristic traces for sand, till, and clay bottom. Multiple traces obtained in some areas were correlated with specific clay strata. The effects of rough water, and of variation of signal strength are illustrated, and reflections from objects in the water, probably fish, localized in relation to the thermocline, are noted.
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