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Articles 1 - 15 of 15
Full-Text Articles in Geomorphology
Probable Glacial Climatic Conditions In Source Areas During Deposition Of Parts Of The Ash Hollow Formation, Ogallala Group (Late Tertiary), Of Western Nebraska, Patricia E. Helland, Robert F. Diffendal Jr.
Probable Glacial Climatic Conditions In Source Areas During Deposition Of Parts Of The Ash Hollow Formation, Ogallala Group (Late Tertiary), Of Western Nebraska, Patricia E. Helland, Robert F. Diffendal Jr.
Robert F. Diffendal, Jr., Publications
Evidence of the climatic conditions in the mountain sediment source areas for the late Tertiary Ash Hollow Formation of the Ogallala Group in western Nebraska has been sought in an SEM (scanning electron microscope) study of surface features on detrital quartz grains from these deposits. The following lines of indirect evidence raised the possibility of glacial conditions: uplift of up to 3500 m in the source areas, paleohydrologic parameters indicative of a transport system analogous to the modern North Saskatchewan River, and possible cold climate surface features on cobbles from the deposits. SEM analysis shows that five of the nine …
Geology, Geologic Time And Nebraska, Marvin P. Carlson
Geology, Geologic Time And Nebraska, Marvin P. Carlson
Conservation and Survey Division
No abstract provided.
Information And Regulations Pertaining To Industrial Minerals In Nebraska, Raymond R. Burchett
Information And Regulations Pertaining To Industrial Minerals In Nebraska, Raymond R. Burchett
Conservation and Survey Division
No abstract provided.
Flat Water: A History Of Nebraska And Its Water, Robert D. Kuzelka, Charles A. Flowerday, Robert N. Manley, Bradley C. Rundquist, Sally J. Herrin
Flat Water: A History Of Nebraska And Its Water, Robert D. Kuzelka, Charles A. Flowerday, Robert N. Manley, Bradley C. Rundquist, Sally J. Herrin
Conservation and Survey Division
No abstract provided.
The Origin And Evolution Of The Southern Snake Range Decollement, East Central Nevada, Allen J. Mcgrew
The Origin And Evolution Of The Southern Snake Range Decollement, East Central Nevada, Allen J. Mcgrew
Geology Faculty Publications
Regional and local stratigraphic, metamorphic, and structural constraints permit reconstruction of the southern Snake Range extensional deformational system in east central Nevada. The dominant structure of the range, the southern Snake Range décollement (SSRD), operated during Oligocene and Miocene extensional deformation to exhume a footwall of multiply deformed metasedimentary and plutonic rocks. Intrusion of three plutons (∼160 Ma, 79.1 ± 0.5 Ma, and 36 ± 1 Ma, respectively) and development of two cleavages preceded the onset of extensional deformation. Plastic deformation of lower plate metasedimentary rocks accompanied the early phases of regional extension and produced bedding-parallel grain shape foliations and …
Nebraska Mineral Operations Review, 1992, R. R. Burchett, Duane A. Eversoll
Nebraska Mineral Operations Review, 1992, R. R. Burchett, Duane A. Eversoll
Conservation and Survey Division
No abstract provided.
Geology And Mineral Resources Of Boone, Greeley, Nance, And Wheeler Counties, Nebraska, Raymond R. Burchett
Geology And Mineral Resources Of Boone, Greeley, Nance, And Wheeler Counties, Nebraska, Raymond R. Burchett
Conservation and Survey Division
No abstract provided.
Resource News-March/April 1993
Resource News-July/August 1993
Uranium Deposits In Nebraska, R. R. Burchett
Uranium Deposits In Nebraska, R. R. Burchett
Conservation and Survey Division
No abstract provided.
Geology Of Arbor Day Farm Nebraska City, Nebraska, R. R. Burchett
Geology Of Arbor Day Farm Nebraska City, Nebraska, R. R. Burchett
Conservation and Survey Division
No abstract provided.
Niobrara River Basin Geological References, Including Parts Of South Dakota Both In And Outside Of The Basin, Robert F. Diffendal Jr.
Niobrara River Basin Geological References, Including Parts Of South Dakota Both In And Outside Of The Basin, Robert F. Diffendal Jr.
Conservation and Survey Division
Includes Niobrara River Basin geological references, including parts of South Dakota both in and outside of the basin.
Cedar County Test Hole Logs, Raymond R. Burchett
Cedar County Test Hole Logs, Raymond R. Burchett
Conservation and Survey Division
No abstract provided.
Cuming County Test Hole Logs, Raymond R. Burchett, Frank A. Smith
Cuming County Test Hole Logs, Raymond R. Burchett, Frank A. Smith
Conservation and Survey Division
No abstract provided.
Resource Notes-Academic Year 1992-93
Resource Notes-Academic Year 1992-93
Conservation and Survey Division
No abstract provided.