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University of Nebraska - Lincoln

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Articles 4051 - 4080 of 4538

Full-Text Articles in Earth Sciences

Guidebook To The Geology Along Portions Of The Lower Platte River Valley And Weeping Water Valley Of Eastern Nebraska, R. R. Burchett Apr 1971

Guidebook To The Geology Along Portions Of The Lower Platte River Valley And Weeping Water Valley Of Eastern Nebraska, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Guidebook To The Late Pliocene And Early Pleistocene Of Nebraska, T. M. Stout, H. M. Degraw, L. G. Tanner, K. O. Stanley, W. J. Wayne, J. B. Swinehart Apr 1971

Guidebook To The Late Pliocene And Early Pleistocene Of Nebraska, T. M. Stout, H. M. Degraw, L. G. Tanner, K. O. Stanley, W. J. Wayne, J. B. Swinehart

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Guidebook To The Late Pliocene And Early Pleistocene Of Nebraska, T. M. Stout, H. M. Degraw, L. G. Tanner, K. O. Stanley, William J. Wayne, J. B. Swinehart Apr 1971

Guidebook To The Late Pliocene And Early Pleistocene Of Nebraska, T. M. Stout, H. M. Degraw, L. G. Tanner, K. O. Stanley, William J. Wayne, J. B. Swinehart

Department of Earth and Atmospheric Sciences: Faculty Publications

The interesting geographic and even strategic position of Nebraska between regions of mountain and interior glaciation during the Quaternary was emphasized by A. L. Lugn, Professor Emeritus of Geology at the University of Nebraska, more than thirty years ago. The earlier studies are summarized in two principal works by Lugn (1935; 1939a; see Selected References), to whom this guidebook is dedicated, much has been learned since and much remains to be recorded concerning the Tertiary and Pleistocene of Nebraska. In this centennial year, commemorating the beginning of a second century of geological instruction at the University of Nebraska, it seems …


A Generic Revision Of The Pterodedinae, A New Subfamily Of Feather Mites (Sarcoptiformes: Analgoidea), Chong K. Park, Warren T. Atyeo Mar 1971

A Generic Revision Of The Pterodedinae, A New Subfamily Of Feather Mites (Sarcoptiformes: Analgoidea), Chong K. Park, Warren T. Atyeo

Bulletin of the University of Nebraska State Museum (1924–2023)

The generic rev1s1on of the Pterodectinae, new subfamily of the Proctophyllodidae, is based on 88 named and over 160 new species. Included are morphology, host-parasite relationships, diagnoses of four named and eight new genera, and illustrations of each type species. The named genera are:

Anisodiscus Gaud and Mouchet, 1957; Montesauria Oudemans, 1905; Proterothrix Gaud, 1968; Pterodectes Robin, 1877. The new genera and their type species are: Dolichodectes, Proctophyllodes (Pterocolus) edwardsi Trouessart, 1885; Megalodectes, Proctophyllodes (Pterodectes) major Trouessart, 1885; Neodectes, Proctophyl/odes (Pterodectes) securiclatus Trouessart and Neumann, 1888; Pedanodectes, Pterodectes hologaster Gaud, 1953; Syntomodectes, Proctophyllodes (Pterodectes) selenurus Trouessart, 1885; Toxerodectes, Pterodectes gladiger …


Use Of Groundwater For Irrigation In Hamilton And York Counties, Nebraska, Eugene K. Steele Jr. Feb 1971

Use Of Groundwater For Irrigation In Hamilton And York Counties, Nebraska, Eugene K. Steele Jr.

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Directory Of Nebraska Quarries, Pits, And Mines, R. R. Burchett Jan 1971

Directory Of Nebraska Quarries, Pits, And Mines, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Dunes On The Plains, The Sand Hills Region Of Nebraska, C. F. Keech, R. Bentall Jan 1971

Dunes On The Plains, The Sand Hills Region Of Nebraska, C. F. Keech, R. Bentall

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Shaded Topographic Map Of Nebraska Jan 1971

Shaded Topographic Map Of Nebraska

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Minimum Standards For Artificially Gravel Packed Irrigation Wells, P. E. Fischbach, P. E. Schleusener, V. H. Dreeszen Jan 1971

Nebraska Minimum Standards For Artificially Gravel Packed Irrigation Wells, P. E. Fischbach, P. E. Schleusener, V. H. Dreeszen

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Groundwater Level (Decline & Rise), 1971 Jan 1971

Nebraska Groundwater Level (Decline & Rise), 1971

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Shaded Topographic Map Of Nebraska, Conservation And Survey Division Jan 1971

Shaded Topographic Map Of Nebraska, Conservation And Survey Division

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Bioassay Procedures For Oil And Oil Dispersant Toxicity Evaluation, Gilles Laroche, Ronald Eisler, Clarence M. Tarzwell Nov 1970

Bioassay Procedures For Oil And Oil Dispersant Toxicity Evaluation, Gilles Laroche, Ronald Eisler, Clarence M. Tarzwell

United States Environmental Protection Agency: Publications

Hazards to marine and estuarine fauna associated with offshore drilling of oil and with transport of large quantities of oils via tankers are numerous and understandable. At present, there is a growing body of evidence on adverse effects to these organisms of crude oil (1) (2) (3) (4) (5) (6) (7) (8) (9) and chemical oil counteracting agents or dispersants (5) (6) (9) (10) (11) (12) (13) (14) (15) (16) (17). These effects are well summarized by Smith (18) and by Carthy and Arthur (19).

Comparatively few workers have studied the influence of oil-dispersant mixtures of marine life. Studies by …


Machairodont Cats From The Early Pleistocene Broadwater And Lisco Local Faunas, C. Bertrand Schultz, Larry D. Martin Nov 1970

Machairodont Cats From The Early Pleistocene Broadwater And Lisco Local Faunas, C. Bertrand Schultz, Larry D. Martin

Bulletin of the University of Nebraska State Museum (1924–2023)

A new species of Ischyrosmilus (I. crusafonti) is reported from the Early Pleistocene Broadwater Local Fauna of Morrill County, Nebraska. Ischyrosmilus sp. is reported from the Early Pleistocene Lisco Local Fauna. Megantereon is reported from the Broadwater Local Fauna and this is the first record of the genus from North America.


Thermal Requirements To Protect Aquatic Life, Clarence M. Tarzwell May 1970

Thermal Requirements To Protect Aquatic Life, Clarence M. Tarzwell

United States Environmental Protection Agency: Publications

Water temperatures affect aquatic organisms in a number of ways, both directly and indirectly. Some of the latter effects are quite subtle. High temperatures can have direct lethal effects but sublethal levels operating over long periods can be just as harmful through delayed lethal effects and the production of nonlethal stresses which eventually result in changes in the population, reduced growth or reproduction, and the lowering of resistance to parasites, dis ease, and competitors. Temperature, in combination with certain other factors such as day length, influences re producing processes. High water temperatures may stimulate or retard migration, spawning, feeding, and …


Groundwater Levels In Nebraska, 1969, C.F. Keech May 1970

Groundwater Levels In Nebraska, 1969, C.F. Keech

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Re-Exploring The Missouri, Thompson Mylan Stout May 1970

Re-Exploring The Missouri, Thompson Mylan Stout

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Guidebook To The Geology Along The Missouri River Bluffs Of Southeastern Nebraska And Adjacent Areas, R. R. Burchett Apr 1970

Guidebook To The Geology Along The Missouri River Bluffs Of Southeastern Nebraska And Adjacent Areas, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Use Of Groundwater For Irrigation: Seward County, Nebraska, J.M. Jess Mar 1970

Use Of Groundwater For Irrigation: Seward County, Nebraska, J.M. Jess

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Use Of Groundwater For Irrigation: Seward County, Nebraska, J.M. Jess Mar 1970

Use Of Groundwater For Irrigation: Seward County, Nebraska, J.M. Jess

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Native Indiana Iron Ores And 19th Century Ironworks, William J. Wayne Jan 1970

Native Indiana Iron Ores And 19th Century Ironworks, William J. Wayne

Department of Earth and Atmospheric Sciences: Faculty Publications

Introduction / 1

Phase one: Charcoal and native ores / 4

Northern Indiana ironworks and the postglacial bog ores / 4

Southern Indiana ironworks, Pennsylvanian and Mississippian ores / 10

Phase two: Block coals and Missouri ores / 15

Selected bibliography / 21

"The coming of iron manufacturers into the Indiana field should be encouraged. The reopening of ore deposits, the development of the coal fields, the building of furnaces within the state to smelt northern ores, the building of new railroads, and the extension of others, and the aggressive policy of existing roads to encourage industries along their lines, …


A New Tribe Of Saber-Toothed Cats (Barbourofelini) From The Pliocene Of North America, C. Bertrand Schultz, Marian R. Schultz, Larry D. Martin Jan 1970

A New Tribe Of Saber-Toothed Cats (Barbourofelini) From The Pliocene Of North America, C. Bertrand Schultz, Marian R. Schultz, Larry D. Martin

Bulletin of the University of Nebraska State Museum (1924–2023)

A new genus of Pliocene Saber-toothed felid, Barbourofelis, is proposed and two new species B. fricki and B. morrisi are described. These two forms and other described material represent an unusual lineage of felids with long sabers, shortened crania, and massive postorbital bars. The tribal name Barbourofelini is proposed for this lineage which is presently known in North America from deposits ranging in age from Clarendonian through Kimballian. The Barbourofelini apparently migrated from Eurasia to North America in the Late Miocene or Early Pliocene. Sansanosmilus of the French Vindobonian appears to represent the ancestral stock of these cats. The …


Groundwater Regions In Nebraska Jan 1970

Groundwater Regions In Nebraska

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Stratigraphic Framework Of Pleistocene Glacial And Periglacial Deposits In The Central Plains, V. H. Dreeszen Jan 1970

The Stratigraphic Framework Of Pleistocene Glacial And Periglacial Deposits In The Central Plains, V. H. Dreeszen

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Occurrence Of Gypsum In The Johnson Shale (Permian) In Nemaha County, Nebraska, R. R. Burchett Jan 1970

Occurrence Of Gypsum In The Johnson Shale (Permian) In Nemaha County, Nebraska, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Distribution And Subdivision Of Precambrian And Lower And Middle Paleozoic Rocks In The Subsurface Of Nebraska, M. P. Carlson Jan 1970

Distribution And Subdivision Of Precambrian And Lower And Middle Paleozoic Rocks In The Subsurface Of Nebraska, M. P. Carlson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Groundwater Level (Decline & Rise), 1970 Jan 1970

Nebraska Groundwater Level (Decline & Rise), 1970

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Total Number Of Irrigation Wells Located In Nebraska Counties As Of 1970 Jan 1970

Total Number Of Irrigation Wells Located In Nebraska Counties As Of 1970

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Water Levels In Observation Wells In Nebraska, 1968, C.F. Keech, G.R. Svoboda Jun 1969

Water Levels In Observation Wells In Nebraska, 1968, C.F. Keech, G.R. Svoboda

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Soils Of Nebraska, John A. Elder May 1969

Soils Of Nebraska, John A. Elder

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Tiger's Back "A Report On Australian Organizations For Metropolitan Planning Administration", Robert D. Kuzelka Jan 1969

The Tiger's Back "A Report On Australian Organizations For Metropolitan Planning Administration", Robert D. Kuzelka

Conservation and Survey Division: Faculty and Staff Publications

The Australian town planning scene presents many interesting and unusual aspects to the city planner from the United States of America. Aspects which because of familiarity and proximity may not strike the Australian town planner as being either interesting, or unusual. This report will discuss some of these aspects as they seem to be affecting each major metropolitan region which includes the capital city in each of the six Australian States. Throughout the report, "metropolitan region" refers to the unit, or units of Local Government which are included in the planning area of each organization which is considered in this …