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Stratigraphy Commons

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Articles 1 - 16 of 16

Full-Text Articles in Stratigraphy

The Amphibians And Reptiles Of Nebraska, George E. Hudson Aug 1985

The Amphibians And Reptiles Of Nebraska, George E. Hudson

Conservation and Survey Division

No abstract provided.


Groundwater Levels In Nebraska, 1984, Michael J. Ellis, Darryll T. Pederson Jun 1985

Groundwater Levels In Nebraska, 1984, Michael J. Ellis, Darryll T. Pederson

Conservation and Survey Division

No abstract provided.


Aspects Of Groundwater Quality Proceedings 1985 Water Resources Seminar Series Jun 1985

Aspects Of Groundwater Quality Proceedings 1985 Water Resources Seminar Series

Conservation and Survey Division

During each spring semester, the Nebraska Water Resources Center sponsors a Water Resources Seminar Series at the University of Nebraska - Lincoln. The 1985 seminar series was entitled "Aspects of Groundwater Quality".


Groundwater Levels In Nebraska 1984, Michael J. Ellis, Darryll T. Pederson Jun 1985

Groundwater Levels In Nebraska 1984, Michael J. Ellis, Darryll T. Pederson

Conservation and Survey Division

No abstract provided.


New Evidence Supporting The Blancan Age Of The Sand And Gravel Sequence Capping The Ash Hollow Formation, Garden, Keith, And Lincoln Counties, Nebraska, Robert F. Diffendal Jr., James W. Goeke, Michael R. Voorhies Mar 1985

New Evidence Supporting The Blancan Age Of The Sand And Gravel Sequence Capping The Ash Hollow Formation, Garden, Keith, And Lincoln Counties, Nebraska, Robert F. Diffendal Jr., James W. Goeke, Michael R. Voorhies

School of Natural Resources: Faculty Publications

Sandwiched between the overlying eolian Quaternary loesses and sands and the underlying beds of the Ash Hollow Formation, Ogallala Group, buried beneath the sliver of Cheyenne Tableland in Keith County and adjacent areas of western Nebraska, is a mass of fluvially deposited sand, gravelly sand, and sandy gravel of previously uncertain age. Some authors assigned these sediments to the Ogallala Group, while others have called them either the Broadwater Formation (Blancan), or a combination of the two rock units.


A Numerical Approach For Determining The Variable Ascent Velocity Of A Granitoid Diapir, Keith I. Mahon Jan 1985

A Numerical Approach For Determining The Variable Ascent Velocity Of A Granitoid Diapir, Keith I. Mahon

Geology Theses and Dissertations

A mathematical model for granitoid diapirism has been developed that accounts for the time dependent thermal and rheological conditions encountered by the intruding body. This model is derived by the simultaneous solution of the partial differential equations of energy, continuity, and momentum utilizing scaling analysis. The underlying assumption is that deformation of the surrounding country rock is confined to a relatively thin layer with a temperature dependent Newtonian viscosity. When the country rock is modeled as a power-law fluid, the effective viscosity is dependent upon temperature and shear strain rate.
This model allows for realistic temperature gradients within the crust …


Nebraska Mineral Operations Review, 1984, Raymond R. Burchett, Duane A. Eversoll Jan 1985

Nebraska Mineral Operations Review, 1984, Raymond R. Burchett, Duane A. Eversoll

Conservation and Survey Division

No abstract provided.


Annual Outflow Of Water From Nebraska, 1950-1984, Conservation Survey Division Jan 1985

Annual Outflow Of Water From Nebraska, 1950-1984, Conservation Survey Division

Conservation and Survey Division

No abstract provided.


Irrigation Water Diagram Jan 1985

Irrigation Water Diagram

Conservation and Survey Division

No abstract provided.


The Inapplicability Of The Concept Of The "Sidney Gravel" To The Ogallala Group (Late Tertiary) In Part Of Southern Banner County, Nebraska, Robert F. Diffendal Jr. Jan 1985

The Inapplicability Of The Concept Of The "Sidney Gravel" To The Ogallala Group (Late Tertiary) In Part Of Southern Banner County, Nebraska, Robert F. Diffendal Jr.

School of Natural Resources: Faculty Publications

A series of geologic maps of counties in western Nebraska was prepared for the Nebraska Geological Survey during the mid-1 930s. These maps showed the distribution of rock units of Tertiary age including a formation designated as the “Sidney.” The Sidney Gravel was described as a widespread sheetlike complex of channel deposits, but with small areas where it is not developed. In southern Banner County, Nebraska, there are several channels filled with sand and gravel that were mapped as Sidney in this series. Recently one of these channel fills has been observed to cut across the other. The fills are …


Atlas Illustrating The Characteristics Of Groundwater In Nebraska, Vince Dreeszen Jan 1985

Atlas Illustrating The Characteristics Of Groundwater In Nebraska, Vince Dreeszen

Conservation and Survey Division

No abstract provided.


Airborne Thermal Mapping Of A "Flow-Through" Lake In The Nebraska Sandhills, Donald Rundquist, Gene Murray, Lloyd Queen Jan 1985

Airborne Thermal Mapping Of A "Flow-Through" Lake In The Nebraska Sandhills, Donald Rundquist, Gene Murray, Lloyd Queen

Conservation and Survey Division

No abstract provided.


Concentration Of Nitrate-Nitrogen In Groundwater Central Platte Region, Nebrask 1984, M. E. Exner Jan 1985

Concentration Of Nitrate-Nitrogen In Groundwater Central Platte Region, Nebrask 1984, M. E. Exner

Conservation and Survey Division

No abstract provided.


Significant Rises And Declines In Nebraska Groundwater Levels (From Pre-Development As Of Fall 1984)/Registered Irrigation Wells In Nebraska (As Of January 1, 1985, Conservation Survey Division, U.S. Geological Survey Jan 1985

Significant Rises And Declines In Nebraska Groundwater Levels (From Pre-Development As Of Fall 1984)/Registered Irrigation Wells In Nebraska (As Of January 1, 1985, Conservation Survey Division, U.S. Geological Survey

Conservation and Survey Division

No abstract provided.


Annual Outflow Of Water From Nebraska, 1950 - 1985 And Annual Inflow Of Water To Nebraska, 1950 - 1985, Conservation And Survey Division Jan 1985

Annual Outflow Of Water From Nebraska, 1950 - 1985 And Annual Inflow Of Water To Nebraska, 1950 - 1985, Conservation And Survey Division

Conservation and Survey Division

No abstract provided.


Transmissivity Of The Principal Aquifer In Nebraska Jan 1985

Transmissivity Of The Principal Aquifer In Nebraska

Conservation and Survey Division

No abstract provided.