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Sedimentation in Long Lake, Noble County, northeastern Indiana, 1959-88 Sedimentation in Long Lake, Noble County, northeastern Indiana, 1959-88

Sedimentation has had little or no effect on the storage capacity or surface area of Long Lake. The lake is a natural lake that formed in unconsolidated glacial deposits. The lake is essentially two lakes: a small southern part and a large northern part. The lake receives drainage from Thumma Ditch. At the outlet of the lake, the drainage area of Thumma Ditch is 12.0 square miles...
Authors
D.E. Renn

Geohydrology and water quality of the Calumet aquifer, in the vicinity of the Grand Calumet River/Indiana Harbor Canal, northwestern Indiana Geohydrology and water quality of the Calumet aquifer, in the vicinity of the Grand Calumet River/Indiana Harbor Canal, northwestern Indiana

The water-table configuration of the Calumet aquifer in the vicinity of the Grand Calumet River/Indiana Harbor Canal in Lake County, northwestern Indiana, reflects the complexity of the shallow ground-water-flow system. Large depressions in the water table in sewered areas interrupt broad ground-water divides between rivers. The aquifer/stream interactions along the Grand Calumet River/...
Authors
J.M. Fenelon, Lee R. Watson

Mesozoic stratigraphy and paleoenvironments of the Georges Bank Basin: A correlation of exploratory and cost wells Mesozoic stratigraphy and paleoenvironments of the Georges Bank Basin: A correlation of exploratory and cost wells

The Exxon 975-1, Conoco 145-1, and Mobil 312-1 hydrocarbon exploratory wells and the Continental Offshore Stratigraphic Test (COST) G-1 and G-2 wells were drilled in the southeastern part of the Georges Bank Basin. We used drill cuttings and logs from these wells to describe and correlate the dominant lithostratigraphic units and to document lateral changes in the depositional...
Authors
L. J. Poppe, C. W. Poag

Method of estimating the amount of in situ gas hydrates in deep marine sediments Method of estimating the amount of in situ gas hydrates in deep marine sediments

The bulk volume of gas hydrates in marine sediments can be estimated by measuring interval velocities and amplitude blanking of hydrated zones from true amplitude processed multichannel seismic reflection data. In general, neither velocity nor amplitude information is adequate to independently estimate hydrate concentration. A method is proposed that uses amplitude blanking calibrated by...
Authors
Myung W. Lee, D. R. Hutchinson, William P. Dillon, J. J. Miller, Warren F. Agena, B.A. Swift
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