Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- Utah State University (55)
- University of South Florida (22)
- Bulletin of the Mineral Research and Exploration (21)
- University of Nebraska - Lincoln (20)
- Missouri University of Science and Technology (10)
-
- William & Mary (9)
- Department of Primary Industries and Regional Development, Western Australia (8)
- University of North Dakota (8)
- Bates College (7)
- University of Arkansas, Fayetteville (6)
- University of Kentucky (6)
- University of New Mexico (5)
- Western Washington University (5)
- Eastern Illinois University (2)
- Portland State University (2)
- Old Dominion University (1)
- The University of Maine (1)
- University at Albany, State University of New York (1)
- University of Massachusetts Amherst (1)
- University of Nevada, Las Vegas (1)
- University of Rhode Island (1)
- University of Southern Maine (1)
- Western Michigan University (1)
- Keyword
-
- Nebraska (5)
- Grains and field crops (4)
- Soils (4)
- 1972 (3)
- Geology (3)
-
- Groundwater (3)
- Map (3)
- Research and Technical Reports (3)
- VIMS Books and Book Chapters (3)
- Water (3)
- Geochemistry (2)
- Groundwater Nebraska (2)
- Petrology (2)
- Remote sensing -- Chesapeake Bay (Md. and Va.) (2)
- Seismic refraction surveys (2)
- Soil (2)
- Special Scientific Reports (SSR) (2)
- Water Survey Paper (2)
- <p>Elastic solids<br />Elastic scattering<br />Electromagnetism -- Mathematical models</p> (1)
- <p>Geochemistry -- Idaho -- Kellogg<br />Mines and mineral resources -- Idaho -- Kellogg</p> (1)
- <p>Ore deposits -- Mississippi River Valley -- Mathematical models<br />Trend surface analysis<br />Geology (1)
- <p>Petroleum -- Geology -- Turkey -- Sason<br />Geology (1)
- <p>Phosphate rock -- Florida<br />Phosphate minerals -- Florida<br />Geology (1)
- <p>Sand -- Puerto Rico<br />Geochemistry -- Puerto Rico<br />Chemistry (1)
- Alaskan (1)
- Amalgam (1)
- Analytic -- Quantitative</p> (1)
- Ashland (1)
- Bellingham Bay (1)
- Biostratigraphy (1)
- Publication
-
- Memorandum (45)
- International Journal of Speleology (22)
- Bulletin of the Mineral Research and Exploration (21)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (10)
- Conservation and Survey Division (10)
-
- Doctoral Dissertations (8)
- Theses and Dissertations (8)
- Walter Lawrance Papers (7)
- Journal of the Arkansas Academy of Science (6)
- KWRRI Research Reports (6)
- Earth and Planetary Sciences ETDs (5)
- WWU Graduate School Collection (5)
- Bulletin of the University of Nebraska State Museum (4)
- Experimental Summaries - Plant Research (4)
- Masters Theses (4)
- Reports (4)
- Journal of the Department of Agriculture, Western Australia, Series 4 (3)
- VIMS Books and Book Chapters (3)
- Department of Earth and Atmospheric Sciences: Faculty Publications (2)
- Dissertations and Theses (2)
- Dissertations, Theses, and Masters Projects (2)
- United States Environmental Protection Agency: Staff Publications (2)
- United States Geological Survey: Staff Publications (2)
- Earth Science Faculty Scholarship (1)
- Geology Theses and Dissertations (1)
- Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works (1)
- Lynn Margulis (1938 - 2011) (1)
- Maine Collection (1)
- OES Theses and Dissertations (1)
- Resource management technical reports (1)
- Publication Type
Articles 61 - 90 of 194
Full-Text Articles in Physical Sciences and Mathematics
Tertiary Igneous Rocks Of Northeastern Cache Valley, Idaho, Parry D. Willard
Tertiary Igneous Rocks Of Northeastern Cache Valley, Idaho, Parry D. Willard
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The tuffs and limestones of the Tertiary Salt Lake Formation in northeastern Cache Valley, Franklin County, Idaho, are intruded by basic and intermediate igneous dikes and sills. The Tertiary intrusives are exposed in an area 10 miles long and 2 miles wide between Bear River and Maple Creek in the foothills of the Bear River Range east of Preston, Idaho. They trend north-northwest. The intrusives are mostly diabase but include a small body of syenodiorite and several small andesite dikes. The intrusives seem to be emplaced along early Basin and Range faults. They are limited to the Cache Valley Member …
Use Of Groundwater For Irrigation In Clay County, Nebraska, 1970, Eugene K. Steele Jr.
Use Of Groundwater For Irrigation In Clay County, Nebraska, 1970, Eugene K. Steele Jr.
Conservation and Survey Division
No abstract provided.
Groundwater Levels In Nebraska, 1971, C.F. Keech
Groundwater Levels In Nebraska, 1971, C.F. Keech
Conservation and Survey Division
No abstract provided.
Digital Computer Modeling Of Limestone Groundwater Systems, John Thrailkill, David P. Beiter
Digital Computer Modeling Of Limestone Groundwater Systems, John Thrailkill, David P. Beiter
KWRRI Research Reports
Because limestone groundwater flows mainly In discrete openings, limestone aquifers are fundamentally different from aquifers In granular rocks. A digital computer program which simulates flow in a limestone aquifer as a pipe network was written and compared with the Sinkhole Plain aquifer of west-central Kentucky.
A reasonably good fit between observed parameters of the aquifer and those calculated were obtained under assumed conditions of both laminar and turbulent now In the aquifer. The Indicated gross permeablllty of the aquifer is 5600 melnzers with an assumed aquifer thickness of 100 feet. The location and discharge of springs along the streams bounding …
Methodological And Validation Study Of Seed Reserves In Desert Soils, David W. Goodall, Stuart Childs, Herman Wiebe
Methodological And Validation Study Of Seed Reserves In Desert Soils, David W. Goodall, Stuart Childs, Herman Wiebe
Memorandum
The development of a method for separating seeds from desert soils, and enumerating them, is described.
In the Great Basin desert, species differed greatly in their depth distribution, some having a peak at or just below the surface, while others were still abundant below 5 cm. Much higher seed densities were found beneath the canopies of shrubs and of tussock grasses than in the inter-spaces; no consistent differences were found, however, associated with the species of the canopy plant, or with distance from its center.
Tentative estimates are given of the seed population in the four validation sites in Curlew …
Availability And Use Of Water In Nebraska, 1970, F. Butler Shaffer
Availability And Use Of Water In Nebraska, 1970, F. Butler Shaffer
Conservation and Survey Division
No abstract provided.
Eutrophication Factors In North Central Florida Lakes, H. D. Putnam, Patrick L. Brezonik, Earl E. Shannon
Eutrophication Factors In North Central Florida Lakes, H. D. Putnam, Patrick L. Brezonik, Earl E. Shannon
United States Environmental Protection Agency: Staff Publications
A small Florida lake has been receiving a regimen of nutrient addition equivalent to 500 mg/m3-yr N and 43 mg/m3-yr P since 1967. Data has been accumulated through 1969. The effect on the lacustrine ecosystem of various biogenes includes production by primary producers, species diversity of plankton and certain production estimates at the secondary trophic level using natural populations of planktivorous fish. Plankton production using isotopic carbon is ca. 58 grms/m2-yr; Species diversity is slowly changing to a mixed chlorophycean and yellow-green. Biomass of benthic green filamentous types has increased slightly. Nutrient addition has …
Upper Pennsylvanian Shoreline Deposits Form Iowa And Nebraska: Their Recognition, Variation, And Significance, J. A. Fagerstrom, R. R. Burchett
Upper Pennsylvanian Shoreline Deposits Form Iowa And Nebraska: Their Recognition, Variation, And Significance, J. A. Fagerstrom, R. R. Burchett
Conservation and Survey Division
No abstract provided.
Catechol Effected Dissolution Of Silicate Minerals, James Maurice Kelley
Catechol Effected Dissolution Of Silicate Minerals, James Maurice Kelley
Dissertations and Theses
The chemical properties of guanidinium tris(catecholato)siliconate, [(H₂N)₂C=NH₂]₂[Si(C₆H₄O₂)₃]·XH₂O (0 < X < 1), precipitated from an ammoniacal solution of silica and catechol by adding guanidinium hydrochloride, (H₂N)₂C=NH·HC1, were studied, and infrared, nmr, x-ray powder diffraction, and analytical data were gathered.
This same compound was, upon addition of' (H₂N)₂C=NH·HC1, isolated from 0.25, M aqueous catechol solutions buffered at pH 10 and containing the silicate minerals albite, andradite, muscovite, pyrophyllite, talc, and wollastonite, and also from unbuffered catechol solutions containing wollastonite and andradite.
It is concluded from this work that the formation of an anionic catechol-silicon complex, Si(C₆H₄O₂)₃²⁻, is largely responsible for the dissolution of the minerals mentioned above. From this conclusion, it is proposed that naturally occurring members of the class of organic compounds to which catechol belongs, the aromatic v̲i̲̲c̲-diols, may play …
An Argument For The Open Ocean Siting Of Coastal Thermal Electric Plants, Clarence M. Tarzwell
An Argument For The Open Ocean Siting Of Coastal Thermal Electric Plants, Clarence M. Tarzwell
United States Environmental Protection Agency: Staff Publications
A great deal of research is yet to be done before we will definitely know all the effects of thermal electric generating plants. It is evident, however, that the chlorination of the intake water is definitely lethal to a high percentage of planktonic and other organisms; that thermal shock is detrimental to some of the more sensitive forms; that the continued exposure to high temperatures after thermal shock is lethal to many forms, especially the zooplankton; that the screening and turbulence in such plants is lethal to larval fishes and several invertebrates, and that immense amounts of waters are put …
Soil And Plant Analysis For Mineral Deficiencies, M D. Carroll
Soil And Plant Analysis For Mineral Deficiencies, M D. Carroll
Journal of the Department of Agriculture, Western Australia, Series 4
Soil and plant analysis (testing) has its supporters and its critics. Some of the differences are resolved if the distinction is made between the concept and the practice. Most people would agree with the concept of soil and plant analysis but the practice, or service offered, in any agricultural situation can be subject to valid criticism.
This article defines some of the principles involved and illustrates some of the problems, to provide a better understanding of the usefulness and the limitations of soil and plant analysis as a diagnostic aid in plant and animal nutrition.
Long Term Rotation Trials, I C. Rowland
Long Term Rotation Trials, I C. Rowland
Experimental Summaries - Plant Research
LONG TERM ROTATION TRIALS The results shown are the yield of grain harvested from crops grown under various rotations of pasture ley. W56H, 66M29, 67N4, 67BA6, 68E5, 68SG5, 69GE20
Study Of Channel Sediments, Baltimore Harbor, Norfolk Harbor, York Entrance Channel, R. J. Huggett
Study Of Channel Sediments, Baltimore Harbor, Norfolk Harbor, York Entrance Channel, R. J. Huggett
Reports
3ot~om sediment samples were collected from seven channel locations in the Chesapeake Bay and communicating river systems. The sampling format involved. long cores (designated "L") taken at two nautical mile intervals and surface samples (designated "S) taken at one-half mile intervals.
Petrology Of The Nemeiben Lake Ultramafic And Associated Nickel-Sulphide Deposits, Anantaramam Peddada
Petrology Of The Nemeiben Lake Ultramafic And Associated Nickel-Sulphide Deposits, Anantaramam Peddada
Geology Theses and Dissertations
The Nemeiben Lake ultramafic body is located in the center of Saskatchewan, Canada, within the Churchill Province of the Canadian Shield. The ultramafic rocks consist of serpentinites, partly serpentinized and uralitized pyroxenite, and unaltered pyroxenite. Associated sulphide mineralization is of disseminated, net texture, and fracture filling types. The ore minerals present are pyrrhotite, pentlandite, chalcopyrite, pyrite, marcasite, violarite, bravoite and native copper. The sulphides are considered to be initially of magmatic origin formed from a sulphide melt separated at a late stage during crystallization of the ultramafic rocks. Subsequent serpentinization has locally redistributed the ores.
Serpentinization in the Nemeiben Lake …
Taxonomic Note On Fossil Glyptostrobus In Northeastern Arkansas, Eugene B. Whittlake
Taxonomic Note On Fossil Glyptostrobus In Northeastern Arkansas, Eugene B. Whittlake
Journal of the Arkansas Academy of Science
Two papers by Brown (1936, 1962) are reviewed and discussed in relation to the validity of specific names applied to the fossil Glyptostrobus as found in North American deposits. Evidence is presented supporting the contention that G. nordenskioldi Brown n. comb, is the valid name for Glyptostrobus specimens from the Hooker site of northeastern Arkansas.
Plant Cover For Bare And Salt Affected Land, Department Of Agriculture, Western Australia
Plant Cover For Bare And Salt Affected Land, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
The contributions made by this State to land reclamation were recognised at an international level last year.
Mr. C. V. Malcolm, a research officer with the Soils Division, presented a paper entitled "Establishing Shrubs in Saline Environments" at a symposium on Useful Wildland Shrubs, Their Biology and Utilisation, at Utah State University, Logan, Utah.
The conclusion to Mr. Malcolm's review, set out below, summarises much of what is known about shrub establishment in saline areas.
History Of Sedimentation In Montsweag Bay, Detmar Schnitker
History Of Sedimentation In Montsweag Bay, Detmar Schnitker
Maine Collection
History of Sedimentation In Montsweag Bay
by Setmar Schnitker
Bulletin #25, Department of Forestry, Augusta, Maine, 1972.
Contents: Abstract / Introduction / Geographic Setting / Seismic Profiling / Pleistocene Sediments / Holocene Sediments / Actual Sedimentation /. Suspended Sediments / Recent Changes / Outlook / Acknowledgements / References
Validation Studies And Bacterial Mineralization Of Organic Carbon At Locomotive Springs, J. Anne Holman, F. W. Post, I. Walkiw
Validation Studies And Bacterial Mineralization Of Organic Carbon At Locomotive Springs, J. Anne Holman, F. W. Post, I. Walkiw
Memorandum
No abstract provided.
Tucson Validation Sites Report, John L. Thames
Predicting Nitrogen Transformations And Osmotic Potentials In Warm Desert Soils, G. R. Dutt, J. Hanks
Predicting Nitrogen Transformations And Osmotic Potentials In Warm Desert Soils, G. R. Dutt, J. Hanks
Memorandum
No abstract provided.
Demographic Studies Of Sagebrush Insects As Functions Of Various Environmental Factors, Ting H. Hsiao
Demographic Studies Of Sagebrush Insects As Functions Of Various Environmental Factors, Ting H. Hsiao
Memorandum
No abstract provided.
Ingestion Rates, Live Weight Caloric Densities And Standing Crop Estimates For Desert Biome Rodents, R. K. Schreiber, D. R. Johnson
Ingestion Rates, Live Weight Caloric Densities And Standing Crop Estimates For Desert Biome Rodents, R. K. Schreiber, D. R. Johnson
Memorandum
No abstract provided.
Demography, Foraging Activity Of Leaf-Cutter Ants, Acromyrmex Versicolor, In Relation To Colony Size And Location, Season, Vegetation And Temperature, F. G. Werner, S. L. Murray
Demography, Foraging Activity Of Leaf-Cutter Ants, Acromyrmex Versicolor, In Relation To Colony Size And Location, Season, Vegetation And Temperature, F. G. Werner, S. L. Murray
Memorandum
No abstract provided.
Standing Crop And Productivity Of Marsh Vegetation At Saratoga Springs, California, W. G. Bradley
Standing Crop And Productivity Of Marsh Vegetation At Saratoga Springs, California, W. G. Bradley
Memorandum
No abstract provided.
Data Summary For Aquatic Macroinvertebrates, L. G. Richardson, M. D. Merritt, C. R. Ward
Data Summary For Aquatic Macroinvertebrates, L. G. Richardson, M. D. Merritt, C. R. Ward
Memorandum
No abstract provided.
Dynamics And Productivity Of Aquatic Invertebrates In A Desert Environment, A. R. Gaufin, J. Stanford, E. Clubb, E. Nisonger
Dynamics And Productivity Of Aquatic Invertebrates In A Desert Environment, A. R. Gaufin, J. Stanford, E. Clubb, E. Nisonger
Memorandum
No abstract provided.
Aquatic Macroinvertebrates Of The Playa, G. Richardson, C. R. Ward, E. W. Huddleston
Aquatic Macroinvertebrates Of The Playa, G. Richardson, C. R. Ward, E. W. Huddleston
Memorandum
No abstract provided.
Productivity And Water Stress In Cacti, Duncan T. Patten
Productivity And Water Stress In Cacti, Duncan T. Patten
Memorandum
No abstract provided.
Rate Of Transport Of Photosynthate To Root Systems Of Desert Shrubs, A. Wallace, S. Bamberg
Rate Of Transport Of Photosynthate To Root Systems Of Desert Shrubs, A. Wallace, S. Bamberg
Memorandum
No abstract provided.
Diets, Food Preferences, And Reproductive Cycles Of Some Desert Rodents, R. P. Balda, G. C. Bateman, T. A. Vaughan
Diets, Food Preferences, And Reproductive Cycles Of Some Desert Rodents, R. P. Balda, G. C. Bateman, T. A. Vaughan
Memorandum
No abstract provided.