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University of Nebraska - Lincoln

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Articles 1171 - 1200 of 1807

Full-Text Articles in Geology

Saturated Thickness Of The Principal Groundwater Reservoir In Nebraska, Conservation And Survey Division Jan 1988

Saturated Thickness Of The Principal Groundwater Reservoir In Nebraska, Conservation And Survey Division

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Groundwater Levels In Nebraska, 1987, Michael J. Ellis, Perry B. Wigley Jan 1988

Groundwater Levels In Nebraska, 1987, Michael J. Ellis, Perry B. Wigley

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Mineral Operations Review, 1987, Raymond R. Burchett Jan 1988

Nebraska Mineral Operations Review, 1987, Raymond R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Resourceful Scenes From Past And Present, Roger K. Pabian Jan 1988

Resourceful Scenes From Past And Present, Roger K. Pabian

Conservation and Survey Division: Faculty and Staff Publications

These sites represent significant, interesting or unique occurrences of geologically related natural resources in the state. An extensive explanation of the fifty-seven items notated on the map is included.


General Soil Map Of Nebraska, Mark S. Kuzila, Ann M. Mack, J.R. Culver, Steven J. Schaefer Jan 1988

General Soil Map Of Nebraska, Mark S. Kuzila, Ann M. Mack, J.R. Culver, Steven J. Schaefer

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Annual Installation Of Irrigation Wells In Nebraska Through 1988, Conservation Survey Division Jan 1988

Annual Installation Of Irrigation Wells In Nebraska Through 1988, Conservation Survey Division

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Significant Rises And Declines In Nebraska Groundwater Levels (From Pre-Development As Of Fall 1986)/Registered Irrigation Wells In Nebraska (As Of January 1, 1987), Conservation Survey Division, U.S. Geological Survey Jan 1988

Significant Rises And Declines In Nebraska Groundwater Levels (From Pre-Development As Of Fall 1986)/Registered Irrigation Wells In Nebraska (As Of January 1, 1987), Conservation Survey Division, U.S. Geological Survey

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Groundwater Levels In Nebraska, 1986, Michael J. Ellis, Vincent H. Dreeszen Jul 1987

Groundwater Levels In Nebraska, 1986, Michael J. Ellis, Vincent H. Dreeszen

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Geology Of Selected Sites Near The Republican River In Franklin County, Nebraska, Roger K. Pabian Jul 1987

Geology Of Selected Sites Near The Republican River In Franklin County, Nebraska, Roger K. Pabian

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Duer Ranch, Morrill County, Nebraska: Contrast Between Cenozoic Fluvial And Eolian Deposition, James B. Swinehart, R. F. Diffendal Jr. Jan 1987

Duer Ranch, Morrill County, Nebraska: Contrast Between Cenozoic Fluvial And Eolian Deposition, James B. Swinehart, R. F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

The Duer Ranch locality contains some of the finest and most easily accessible examples of different styles of alluvial cuts and fills in the Cenozoic rocks of Nebraska. It offers a unique area in which to examine the geometries and alluvial fills of several Miocene and Pliocene age paleovalleys and paleo-gullies. Good exposures of eolian volcaniclastic siltstones and a regionally important volcanic ash of the Oligocene age Brule Formation are also present at the Duer Ranch locality. In addition, Quaternary ephemeral stream development and deposits can be studied.

Location and Accessibility

Significance of the Locality

Locality Information

Measured Sections [I-IV] …


Paleohydrology Of Some Ogallala (Neogene) Streams In The Southern Panhandle Of Nebraska, R. G. Goodwin, Robert F. Diffendal Jr. Jan 1987

Paleohydrology Of Some Ogallala (Neogene) Streams In The Southern Panhandle Of Nebraska, R. G. Goodwin, Robert F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

Stratification and estimated paleoflow conditions for valley-fill deposits suggest that Ogallala Group streams in western Nebraska were similar to modern streams of south-central Alberta.

Ogallala stratification includes medium-scale (0.5 to 2.0 m thick) trough crossbedded sand and gravel, tabular indistinctly horizontally bedded and imbricated gravel, and horizontally bedded sand and pebbly sand. Valley fills are 15 to 55 m thick and 800 to 1800 m wide at the top. Some are in bedrock-floored channels resembling the “inner channels” of Shepherd and Schumm (1974).

Gradients for three well exposed paleovalley floors range from 0.0014 to 0.0020 (m/m) after tectonic correction. This …


Isotope Content And Temperature Of Precipitation In Southern Nevada, August 1983-August 1986, W. K. Milne, Larry Benson, P. W. Mckinley Jan 1987

Isotope Content And Temperature Of Precipitation In Southern Nevada, August 1983-August 1986, W. K. Milne, Larry Benson, P. W. Mckinley

United States Geological Survey: Publications

From August 1983 through August 1986, 429 precipitation samples of 112 precipitation events were collected at 12 stations in southern Nevada. Some of these samples were analyzed for oxygen-18, deuterium, and tritium. The results of these analyses as well as the air temperature and the precipitation measured at the collection sites are tabulated in this report. The sampling program provides a data base for future interpretive studies on the timing and origin of ground-water recharge in the Yucca Mountain region, of southern Nevada.

The stable-isotope composition of precipitation is the result of fractionation processes that occur in the atmosphere. Isotopic …


Late Cenozoic Geology Along The Summit To Museum Hiking Trail, Scotts Bluff National Monument, Western Nebraska, J. B. Swinehart, D. B. Loope Jan 1987

Late Cenozoic Geology Along The Summit To Museum Hiking Trail, Scotts Bluff National Monument, Western Nebraska, J. B. Swinehart, D. B. Loope

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


A Hydrogeologic Study Of The Local Groundwater Flow System At Osmond, Ne, Jonathan Alix Jan 1987

A Hydrogeologic Study Of The Local Groundwater Flow System At Osmond, Ne, Jonathan Alix

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Resource Notes-Fall/Winter 1986-87 Jan 1987

Resource Notes-Fall/Winter 1986-87

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Significant Rises And Declines In Nebraska Groundwater Levels (From Pre-Development As Of Fall 1985)/Registered Irrigation Wells In Nebraska (As Of January 1, 1986), Conservation Survey Division, U.S. Geological Survey Jan 1987

Significant Rises And Declines In Nebraska Groundwater Levels (From Pre-Development As Of Fall 1985)/Registered Irrigation Wells In Nebraska (As Of January 1, 1986), Conservation Survey Division, U.S. Geological Survey

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Mineral Operations Review, 1986, Raymond R. Burchett, Duane A. Eversoll Jan 1987

Nebraska Mineral Operations Review, 1986, Raymond R. Burchett, Duane A. Eversoll

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Conservation And Survey Division. 1987. Significant Rises And Declines In Nebraska Groundwater Levels (From Pre-Development As Of Fall 1985)/Registered Irrigation Wells In Nebraska (As Of January 1, 1986), Conservation Survey Division, U.S. Geological Survey Jan 1987

Conservation And Survey Division. 1987. Significant Rises And Declines In Nebraska Groundwater Levels (From Pre-Development As Of Fall 1985)/Registered Irrigation Wells In Nebraska (As Of January 1, 1986), Conservation Survey Division, U.S. Geological Survey

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Resource Notes-Spring/Summer 1987 Jan 1987

Resource Notes-Spring/Summer 1987

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Genesis Of Marine Terrace Soils, Barbados, West Indies: Evidence From Mineralogy And Geochemistry, Daniel R. Muhs, Russell C. Crittenden, John N. Rosholt, Charles A. Bush, Kathleen C. Stewart Jan 1987

Genesis Of Marine Terrace Soils, Barbados, West Indies: Evidence From Mineralogy And Geochemistry, Daniel R. Muhs, Russell C. Crittenden, John N. Rosholt, Charles A. Bush, Kathleen C. Stewart

United States Geological Survey: Staff Publications

Well-developed, clay-rich soils dominated by interstratified kaolinite-smectite are found on the uplifted coral reef terraces on the island of Barbados. The reef limestone is unlikely to have been the soil parent material however, because it is 98 per cent CaCO, and geomorphic evidence argues against the 20 m of reef solution required to produce the soils by this process. The mineralogy of the sand, silt, and clay fractions of the soils, and trace element geochemistry, suggest that aeolian materials carried on the trade winds from Africa, volcanic ash from the island of St. Vincent, and quartz from Tertiary bedrock on …


Cliff-Height And Slope-Angle Relationships In A Chronosequence Of Quaternary Marine Terraces, San Clemente Island, California, Russell Crittenden, Daniel R. Muhs Sep 1986

Cliff-Height And Slope-Angle Relationships In A Chronosequence Of Quaternary Marine Terraces, San Clemente Island, California, Russell Crittenden, Daniel R. Muhs

United States Geological Survey: Staff Publications

Zusammenfassung. Eine Abfolge quartarer Strandterrassen auf ~an Clemente Island, Kalifornien, liefert einen Rahmen fur die quantitative Analyse der Anderungen an vom Meer verlassenen Kustenkliffen als Funktion der Zeit. Es wurde eine Abschatzung der Anwendbarkeit von BUCKNAM & ANDERSON (1979) log-lin~arer Beziehung zwischen Wandhohe und Hangwinkel durchgefuhrt, indem Brandungskliffhohe und maximale Hangwinkel verwendet wurden. Die Ergebnisse zeigen eine regelhafte Zunahme des Hangwinkels mit dem Logarithmus der Kliffhohe, und Kliffe einer bestimmten Hohe zeigen m,it der Zeit eine Abnahmedes maximalen Hangwinkels. 1m ganzen waren die Relationen schwacher als fur FluBterrassen und Bruchstufen in unverfestigten Materialen, aber die Methode kann wahrscheinlich verwendet werden, …


Groundwater Levels In Nebraska, 1985, Michael J. Ellis, Darryll T. Pederson Jul 1986

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

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Hydrogeology Of Water-Quality Monitoring Transects In An Irrigated Area Of The Eastern Sand Hills, Nebraska, Dennis R. Lawton May 1986

Hydrogeology Of Water-Quality Monitoring Transects In An Irrigated Area Of The Eastern Sand Hills, Nebraska, Dennis R. Lawton

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Environmental And Physiological Effects On Water Use Of Cereal Crops, Joon Kim Mar 1986

Environmental And Physiological Effects On Water Use Of Cereal Crops, Joon Kim

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Policy Issue Study On Integrated Management Of Surface Water And Groundwater Report, Dayle E. Williamson, Bob Kuzelka Feb 1986

Policy Issue Study On Integrated Management Of Surface Water And Groundwater Report, Dayle E. Williamson, Bob Kuzelka

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Resource Notes-Spring 1986 Jan 1986

Resource Notes-Spring 1986

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Resource Notes-Summer 1986 Jan 1986

Resource Notes-Summer 1986

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Annual Outflow Of Water From Nebraska, 1950-1985, Conservation Survey Division Jan 1986

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

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Annual Outflow/Inflow Of Water From Nebraska, 1950-1985, Conservation And Survey Division Jan 1986

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

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Estimate Of Livestock Water Use In Nebraska During 1980, Eugene K. Steele Jr. Jan 1986

Estimate Of Livestock Water Use In Nebraska During 1980, Eugene K. Steele Jr.

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.