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Articles 931 - 960 of 1624

Full-Text Articles in Paleontology

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: Faculty and Staff Publications

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: Faculty and Staff Publications

No abstract provided.


Development Of A Land Cover Characteristics Data Base For The Conterminous U.S., Thomas R. Loveland, James W. Merchant, Donald O. Ohlen, Jesslyn F. Brown Jan 1991

Development Of A Land Cover Characteristics Data Base For The Conterminous U.S., Thomas R. Loveland, James W. Merchant, Donald O. Ohlen, Jesslyn F. Brown

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


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: Faculty and Staff Publications

No abstract provided.


Thurston County Test Hole Logs, Raymond R. Burchett, Frank A. Smith Jan 1991

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

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Resource News-November/December 1991 Jan 1991

Resource News-November/December 1991

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Cement Operations In Nebraska, R. R. Burchett Jan 1991

Cement Operations In Nebraska, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


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

Ocher Deposits In Nebraska, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


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

Peat Deposits In Nebraska, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

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: Faculty and Staff Publications

No abstract provided.


Groundwater Levels In Nebraska, 1989, Michael J. Ellis, Gregory V. Steele, Perry B. Wigley Dec 1990

Groundwater Levels In Nebraska, 1989, Michael J. Ellis, Gregory V. Steele, Perry B. Wigley

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Oil And Gas Developments In North Mid-Continent In 1989., Shirley E. Paul, Bruce W. Netzler, Raymond R. Burchett, Paul H. Roberts, Robert Peters, Donivan L. Gordon, John H. Mossler Oct 1990

Oil And Gas Developments In North Mid-Continent In 1989., Shirley E. Paul, Bruce W. Netzler, Raymond R. Burchett, Paul H. Roberts, Robert Peters, Donivan L. Gordon, John H. Mossler

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Postulated Evolution Of Platte River And Related Drainages, V. L. Souders, J. B. Swinehart, V. H. Dreeszen Sep 1990

Postulated Evolution Of Platte River And Related Drainages, V. L. Souders, J. B. Swinehart, V. H. Dreeszen

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Vertebrate Paleontology Of The Koum Basin, Northern Cameroon, And Archosaurian Paleobiogeography In The Early Cretaceous, John Deforest Congleton Jr. Aug 1990

Vertebrate Paleontology Of The Koum Basin, Northern Cameroon, And Archosaurian Paleobiogeography In The Early Cretaceous, John Deforest Congleton Jr.

Earth Sciences Theses and Dissertations

The Koum basin is located in West Africa and is a half­graben filled with Cretaceous and younger sediments. It formed in response to tectonic stresses that preceded the development of the Benue trough and the final connection of the North and South Atlantic Oceans. The Cretaceous sediments, up to 3000 meters thick, represent lacustrine, fluvial, and alluvial fan deposits, and suggest an axially­drained half-graben sedimentation model.

Archosaur fossils recovered from the eastern Koum basin include the teeth of two terrestrial crocodylians (cf. Araripesuchus wegeneri and cf. Sebecosuchia) teeth of sauropod and two kinds of theropod dinosaurs (cf. Spinosauridae and Theropoda …


Stromatolites Of The Lower Cambrian Deep Spring Formation; Mount Dunfee, Esmeralda County, Nevada, Lynn Oliver Apr 1990

Stromatolites Of The Lower Cambrian Deep Spring Formation; Mount Dunfee, Esmeralda County, Nevada, Lynn Oliver

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Middle Member of the Lower Cambrian Deep Spring Formation at Mount Dunfee, Nevada contains a diverse assemblage of stromatolites that formed on a tide- and storm-dominated, siliciclastic-influenced, carbonate shelf. The stromatolites formed in a shallow subtidal environment within and near active oolite shoals under strongly focused currents. The stromatolites occur in four different lithofacies: (1) bioherms of digitate stromatolites, (2) bioherms and biostromes of inclined stromatolites, (3) isolated forms of massive and hemispheroidal stromatolites, and (4) a biostrome of cryptomicrobial boundstones. The first three lithofacies are interpreted as microbial reefs. They had topographic relief, formed in active agitated waters, …


Bazile Triangle Groundwater Quality Study, David C. Gosselin Feb 1990

Bazile Triangle Groundwater Quality Study, David C. Gosselin

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Annual Installation Of Irrigation Wells In Nebraska Through 1989, Conservation Survey Division Jan 1990

Annual Installation Of Irrigation Wells In Nebraska Through 1989, Conservation Survey Division

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Richardson County Test Hole Logs, Raymond R. Burchett, Frank A. Smith Jan 1990

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

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Earthquakes In Nebraska, Second Edition (Expanded), R. R. Burchett Jan 1990

Earthquakes In Nebraska, Second Edition (Expanded), R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

An earthquake is the result of an adjustment of the surface of the earth caused by a release of energy in the earth's crust. Faulting is one of many causes of earthquakes.


Mineral Facts For Nebraska, Raymond R. Burchett Jan 1990

Mineral Facts For Nebraska, Raymond R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Annual Departures From Average Annual Precipitation In Nebraska, 1850-1989, Conservation And Survey Division Jan 1990

Annual Departures From Average Annual Precipitation In Nebraska, 1850-1989, Conservation And Survey Division

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Location Of Registered Irrigation Wells In Nebraska As Of 1990. Jan 1990

Location Of Registered Irrigation Wells In Nebraska As Of 1990.

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Efficiency In Collecting Fossils, Kenneth M. Ball, Leo Carson Davis Jan 1990

Efficiency In Collecting Fossils, Kenneth M. Ball, Leo Carson Davis

Journal of the Arkansas Academy of Science

Two hundred seventy-two kilograms of sediments and fossils were collected from 1 meter square plots on lake beach and river gravel bars to compare the efficiency of surface collecting with that of intensive laboratory processing. Collecting fossils by visual inspection of the outcrop required an average of 14 minutes 56 seconds per square meter and resulted in 319 vertebrate and 1320 invertebrate fossils. The ratio of time spent collecting and processing sediments to time spent in surface collecting fossils was 4.66:1. The ratio of invertebrates produced by the intensive laboratory process to invertebrates produced by surface collecting was 4.80:1. Vertebrate …


Potash Deposits In Nebraska, R. R. Burchett Jan 1990

Potash Deposits In Nebraska, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Volcanic Ash Deposits In Nebraska, R. R. Burchett Jan 1990

Volcanic Ash Deposits In Nebraska, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Fourth Of July Depends Upon Minerals, R. R. Burchett Jan 1990

The Fourth Of July Depends Upon Minerals, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Annual Departures From Average Annual Precipitation In Nebraska, 1850-1989, Conservation Survey Division Jan 1990

Annual Departures From Average Annual Precipitation In Nebraska, 1850-1989, Conservation Survey Division

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Quartzite Deposits In Nebraska, R. R. Burchett Jan 1990

Quartzite Deposits In Nebraska, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Salt Deposits In Nebraska, R. R. Burchett Jan 1990

Salt Deposits In Nebraska, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Sandstone Deposits In Nebraska, R. R. Burchett Jan 1990

Sandstone Deposits In Nebraska, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.