Open Access. Powered by Scholars. Published by Universities.®

Geology Commons™

Open Access. Powered by Scholars. Published by Universities.®

University of Nebraska - Lincoln

Discipline
Keyword
Publication Year
Publication
Publication Type

Articles 1051 - 1080 of 1807

Full-Text Articles in Geology

Hydrogeology Of Parts Of The Twin Platte And Middle Republican Natural Resources Districts, Southwestern Nebraska, J. W. Goeke, J. M. Peckenpaugh, R. E. Cady, J. T. Dugan, R. A. Engberg Apr 1992

Hydrogeology Of Parts Of The Twin Platte And Middle Republican Natural Resources Districts, Southwestern Nebraska, J. W. Goeke, J. M. Peckenpaugh, R. E. Cady, J. T. Dugan, R. A. Engberg

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Resource News-May/June 1992 Jan 1992

Resource News-May/June 1992

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Aminostratigraphy And Oxygen Isotope Stratigraphy Of Marine Terrace Deposits Palos Verdes Hills And San Pedro Areas Los Angeles County California, Daniel R. Muhs, Gifford H. Miller, Joseph F. Whelean, George L. Kennedy Jan 1992

Aminostratigraphy And Oxygen Isotope Stratigraphy Of Marine Terrace Deposits Palos Verdes Hills And San Pedro Areas Los Angeles County California, Daniel R. Muhs, Gifford H. Miller, Joseph F. Whelean, George L. Kennedy

United States Geological Survey: Staff Publications

Amino acid and oxygen isotope data for fossils from terraces of the Palos Verdes Hills and San Pedro areas in Los Angeles County California shed new light on the ages of terraces sea level history marine paleotemperatures and late Quaternary tectonics in this region Low terraces on the Palos Verdes peninsula correlate with the 80 ka and 125 ka sea level highstands that are also recorded as terraces on other coasts In San Pedro the Palos Verdes sand the deposit on what is mapped as the first terrace by Woodring and others 1946 was previously thought to be a single …


Solid Waste Management In Seismic Impact Zones, Raymond R. Burchett Jan 1992

Solid Waste Management In Seismic Impact Zones, Raymond R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Mineral Operations Review, 1991, R. R. Burchett, Duane A. Eversoll Jan 1992

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

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Last Interglacial-Glacial Transition In North America: Evidence From Uranium-Series Dating Of Coastal Deposits, Daniel R. Muhs Jan 1992

The Last Interglacial-Glacial Transition In North America: Evidence From Uranium-Series Dating Of Coastal Deposits, Daniel R. Muhs

United States Geological Survey: Staff Publications

Considerable uncertainty exists as to whether the last interglacial was relatively "short" (~10 ka) or "long" (-20-60 ka), although most investigators generally agree that the last interglacial correlates with all or part of deep-sea oxygen-isotope stage 5. A compilation of reliable U-series ages of marine terrace corals from deposits that have been correlated with isotope stage 5 indicates that there were three relatively high sea-level stands at ca 125-120 ka, ca. 105 ka, and ca. 85-80 ka, and these ages agree with the times of high sea level predicted by the Milankovitch orbital-forcing theory. At a number of localities, however, …


Groundwater Levels In Nebraska, 1991, Gregory V. Steele, Perry B. Wigley Jan 1992

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

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Groundwater-Level Changes In Nebraska, Predevelopment To Fall 1992, Conservation Survey Division, U.S. Geological Survey Jan 1992

Groundwater-Level Changes In Nebraska, Predevelopment To Fall 1992, Conservation Survey Division, U.S. Geological Survey

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Dixon County Test Hole Logs, Raymond R. Burchett, Frank A. Smith Jan 1992

Dixon County Test Hole Logs, Raymond R. Burchett, Frank A. Smith

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Greeley County Test Hole Logs, Raymond R. Burchett, Frank A. Smith Jan 1992

Greeley County Test Hole Logs, Raymond R. Burchett, Frank A. Smith

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nance County Test Hole Logs, Raymond R. Burchett, Frank A. Smith Jan 1992

Nance County Test Hole Logs, Raymond R. Burchett, Frank A. Smith

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Boone County Test Hole Logs, Raymond R. Burchett, Frank A. Smith Jan 1992

Boone County Test Hole Logs, Raymond R. Burchett, Frank A. Smith

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Wheeler County Test Hole Logs, Raymond R. Burchett Jan 1992

Wheeler County Test Hole Logs, Raymond R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Resource Notes-Academic Year 1991-92 Jan 1992

Resource Notes-Academic Year 1991-92

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Resource News-January/February 1992 Jan 1992

Resource News-January/February 1992

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Resource News-March/April 1992 Jan 1992

Resource News-March/April 1992

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Resource News-July/August 1992 Jan 1992

Resource News-July/August 1992

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Mineral Resource Map Of Nebraska, R. R. Burchett Jan 1992

Mineral Resource Map Of Nebraska, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Geologic Bedrock Map Of Nebraska, R. R. Burchett Jan 1992

Geologic Bedrock Map Of Nebraska, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Description Of Rocks From A Core Drilled At A Potential Low-Low Level Radioactive Waste Site In Nemaha County, R. R. Burchett Jan 1992

Description Of Rocks From A Core Drilled At A Potential Low-Low Level Radioactive Waste Site In Nemaha County, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Sr-Isotope Record Of Quaternary Marine Terraces On The California Coast And Off Hawaii, Kenneth R. Ludwig, Daniel R. Muhs, Kathleen R. Simmons, James G. Moore Jan 1992

Sr-Isotope Record Of Quaternary Marine Terraces On The California Coast And Off Hawaii, Kenneth R. Ludwig, Daniel R. Muhs, Kathleen R. Simmons, James G. Moore

United States Geological Survey: Staff Publications

Strontium-isotopic ratios of dated corals have been obtained from submerged reefs formed during Quaternary glacial periods off the Hawaiian islands. These data, combined with data from deep-sea sediments, tightly constrain the secular variation of marine 87Sr/86Sr for the past 800,000 yr. Although long-term trends are apparent, no significant (>0.02‰), rapid (<100,000 yr) excursions in 87Sr/86Sr were resolved nor did we observe any samples with 87Sr/86Sr greater than that of modern seawater. Strontium in mollusks from elevated marine terraces formed during interglacial periods on the southern California coast show resolvable and consistent variations in …


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

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

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Plate Tectonics, Space, Geologic Time, And The Great Plains: A Primer For Non-Geologists, Robert F. Diffendal Jr. Apr 1991

Plate Tectonics, Space, Geologic Time, And The Great Plains: A Primer For Non-Geologists, Robert F. Diffendal Jr.

School of Natural Resources: Faculty Publications

For most Americans, "The Great Plains" evokes images of grasslands, dust storms, prairie fires, Native Americans on horseback, cowboys and wheat lands, and perhaps flat valleys crossed by braided rivers carrying a heavy load of sand and gravel, extremes of weather, and a climate typified by an alternation of droughts and wetter periods. Geologists picture such general images, too, but they also see radical changes in the landscape over periods expressed in millions rather than hundreds of years. Geologically speaking, human activities on the Great Plains are too recent to have much of a place in the broad geologic history …


Late Paleozoic Cyclic Sedimentation In Southeastern Nebraska: A Field Guide, Roger K. Pabian, Robert F. Diffendal Jr. Apr 1991

Late Paleozoic Cyclic Sedimentation In Southeastern Nebraska: A Field Guide, Roger K. Pabian, Robert F. Diffendal Jr.

Conservation and Survey Division: Faculty and Staff Publications

A field guide to Late Paleozoic cyclic sedimentation in southeastern Nebraska.


Bazile Triangle Groundwater Quality Study, David C. Gosselin Mar 1991

Bazile Triangle Groundwater Quality Study, David C. Gosselin

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Facts And Figures About Nebraska Rivers, Ray Bentall Feb 1991

Facts And Figures About Nebraska Rivers, Ray Bentall

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Geologic Map Showing Configuration Of The Bedrock Surface, North Platte, 1 ° X 2 ° Quadrangle, Nebraska, Robert F. Diffendal Jr. Jan 1991

Geologic Map Showing Configuration Of The Bedrock Surface, North Platte, 1 ° X 2 ° Quadrangle, Nebraska, Robert F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

The map area, in west-central Nebraska, is largely covered by surficial deposits of eolian sand, loess, and alluvium ranging in age from Holocene to Pliocene. Holocene and late Pleistocene(?) eolian sand, as much as 300 ft (91 m) thick, covers most of the area north of the North Platte and Platte Rivers, and also covers a small area south of those rivers. The Peoria Loess of Quaternary age overlies most of the remaining upland north of the Platte River in southwestern Logan, northeastern Lincoln, and much of western Custer and extreme northwestern Dawson Counties. Loess also mantles the divide between …


Chemical Analyses Of Water From Selected Wells And Springs In The Yucca Mountain Area, Nevada And Southeastern California, P. W. Mckinley, M. P. Long, Larry Benson Jan 1991

Chemical Analyses Of Water From Selected Wells And Springs In The Yucca Mountain Area, Nevada And Southeastern California, P. W. Mckinley, M. P. Long, Larry Benson

United States Geological Survey: Publications

Chemical analysis of water samples from 279 wells and springs in the Yucca Mountain area are presented. Where data are available, this report includes: site location expressed as Nevada Central Coordinates and latitude and longitude; source of data; name of analyzing laboratory; geologic unit from which water was obtained; lithology; water use; elevation of well or spring; well depth; depth to water; time pumped before taking the sample; yield; type of filtration; sampling method; date the sample was collected; and anion-cation balance.

Yucca Mountain, Nevada (fig. 1), is being investigated by the U.S. Geological Survey, in cooperation with the U.S. …


Master Of Science Theses And Doctor Of Philosophy Dissertations, Dept. Of Geology, University Of Nebraska-Lincoln, R. R. Burchett Jan 1991

Master Of Science Theses And Doctor Of Philosophy Dissertations, Dept. Of Geology, University Of Nebraska-Lincoln, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Explanation Of Water-Level Hydrographs, P. B. Wigley, M. J. Ellis, G. V. Steele Jan 1991

Explanation Of Water-Level Hydrographs, P. B. Wigley, M. J. Ellis, G. V. Steele

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.