Sands and muds accumulating under the influence of apparently strong bottom currents in a
deep-water environment of Lake Superior were studied in detail using 3.5-kHz echo …

ABSTRACT A high‐resolution side‐scan sonar survey of the lake bed off the Keweenaw
Peninsula, Lake Superior, demonstrates that bottom currents are affecting lake bed …

Submersible studies of deep-lake sedimentary features, especially furrows (at 100 m water
depth) and large arcuate depressions (at 240 m water depth), in an area directly north of the …

High-resolution seismic reflection profiles, side-scan sonar profiles, and surface sediment
analyses for grain size (% and, silt & clay), total organic carbon content, and carbonate …

Sediment distribution in the complex region of troughs and shoals in southeastern Lake
Superior was studied by means of echo sounding, coring and surface sediment sampling …

Certain benthic marine fish, including rays, skates, and flatfish, temporarily bury themselves
in sediment and thereby create shallow depressions. These have been observed near shore …

High resolution CHIRP (Compressed High Intensity Radar Pulse) seismic profiles reveal the
presence of two lacustrine sediment drifts located in Lake Champlain's Juniper Deep. Both …

Abstract Upstream of St. Louis, Missouri, navigation on the Upper Mississippi River is made
possible by a series of lock and dam structures. Many of the pools formed by these …

A sub-bottom acoustic survey of Devil Lake on the Canadian Shield in southern Ontario
reveals three acoustic facies:(I) a moderately acoustically transparent, laminated sequence …

Following the Marquette glacial advance, which blocked the eastern outlets of Lake Agassiz
and reached northern Michigan about 10 000 years BP, the ice margin wasted back toward …