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Articles 1 - 9 of 9

Full-Text Articles in Physical Sciences and Mathematics

Ice-Wedge Casts Of Wisconsinan Age In Eastern Nebraska, William J. Wayne Jan 1991

Ice-Wedge Casts Of Wisconsinan Age In Eastern Nebraska, William J. Wayne

Department of Earth and Atmospheric Sciences: Faculty Publications

Sand-filled, wedge-shaped structures beneath a thin layer of aeolian sand penetrate a preIllinoian till and gravel in northeastern Nebraska. Interpreted to be relic thermal contraction crack wedges, they provide the first definite evidence in this State of the former presence of permafrost. The wedges are 5- 7 m apart, 1.8-2.8 m deep and 0.6-0.9 m across at the top, taper downward to a crack and intersect to form polygons. They are filled with medium sand that contains mostly rounded and frosted grains. Vertical fabric is present in each wedge. Ventifacts lie along the top of the till, which is covered …


Annual Report Of Nebraska-1991, Eileen K. Peterson, Raymond R. Burchett Jan 1991

Annual Report Of Nebraska-1991, Eileen K. Peterson, Raymond R. Burchett

Conservation and Survey Division

No abstract provided.


Groundwater Levels In Nebraska, 1990, Gregory V. Steele, Perry B. Wigley Jan 1991

Groundwater Levels In Nebraska, 1990, Gregory V. Steele, Perry B. Wigley

Conservation and Survey Division

No abstract provided.


Nebraska Mineral Operations Review, 1990, Raymond R. Burchett, Duane A. Eversoll Jan 1991

Nebraska Mineral Operations Review, 1990, Raymond R. Burchett, Duane A. Eversoll

Conservation and Survey Division

No abstract provided.


Conservation And Survey Division, 1991. Annual Outflow/Inflow Of Water From Nebraska, 1950-1990, Conservation Survey Divis Jan 1991

Conservation And Survey Division, 1991. Annual Outflow/Inflow Of Water From Nebraska, 1950-1990, Conservation Survey Divis

Conservation and Survey Division

No abstract provided.


Resource News-November/December 1991 Jan 1991

Resource News-November/December 1991

Conservation and Survey Division

No abstract provided.


Radon Deposits In Nebraska, R. R. Burchett Jan 1991

Radon Deposits In Nebraska, R. R. Burchett

Conservation and Survey Division

No abstract provided.


Composite Section Of Outcropping Rocks Along The Missouri River, R. R. Burchett Jan 1991

Composite Section Of Outcropping Rocks Along The Missouri River, R. R. Burchett

Conservation and Survey Division

No abstract provided.


Peat Deposits In Nebraska, R. R. Burchett Jan 1991

Peat Deposits In Nebraska, R. R. Burchett

Conservation and Survey Division

No abstract provided.