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Articles 4201 - 4230 of 4538
Full-Text Articles in Earth Sciences
Arretotherium Fricki, A New Miocene Anthracothere From Nebraska, J. R. Macdonald, C. Bertrand Schultz
Arretotherium Fricki, A New Miocene Anthracothere From Nebraska, J. R. Macdonald, C. Bertrand Schultz
Bulletin of the University of Nebraska State Museum (1924–2023)
A new species of middle Miocene (early Hemingfordian) anthraco-there, Arretotherium fricki Macdonald and Schultz is described based on a cranium from the upper Marsland deposits of Nebraska. The holotype suggests that this genus was derived from the Oligocene genus Elomeryx Marsh.
Annual Installation Of Irrigation Wells In Nebraska Through 1985, Conservation Survey Division
Annual Installation Of Irrigation Wells In Nebraska Through 1985, Conservation Survey Division
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Ostracoda Of The Silurian Decker And Manlius Limestones In New Jersey And Eastern New York, Frank M. Swartz, Frank C. Whitmore Jr.
Ostracoda Of The Silurian Decker And Manlius Limestones In New Jersey And Eastern New York, Frank M. Swartz, Frank C. Whitmore Jr.
United States Geological Survey: Staff Publications
Descriptions and illustrations are given for 44 ostracode species of the Decker, Rondout and Manlius limestones of the William Nearpass quarries and Dalton Nearpass farm in northwestern New Jersey, and at Austin's Glen and Trilobite Mountain in New York. One brachiopod variety is proposed. The ostracode species are distributed through 11 families and 23 genera. Thirty-two species and one variety are new, and there are eight new genera. Holotype or syntype specimens of 13 of Weller's ostracode species have been restudied and are refigured and redescribed. Stratigraphic sections are described to provide details of the ostracode occurrences, and zonal potentialities …
Relation Of Nebraska Water-Level Measurements Made In 1955 To Median Water-Level Position, E. C. Reed
Relation Of Nebraska Water-Level Measurements Made In 1955 To Median Water-Level Position, E. C. Reed
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Classification Of Oligocene Sediments In Nebraska: A Guide For The Stratigraphic Collecting Of Fossil Mammals, C. Bertrand Schultz, Thompson M. Stout
Classification Of Oligocene Sediments In Nebraska: A Guide For The Stratigraphic Collecting Of Fossil Mammals, C. Bertrand Schultz, Thompson M. Stout
Bulletin of the University of Nebraska State Museum (1924–2023)
The Chadron and Brule formations constitute the White River Group in Nebraska and adjacent states. The Brule is divided into the Orella and Whitney members. The latter members are referred to the Medial and Late Oligocene (equivalents of the European Stampian and Aquitanian), while-the Chadron is equated with the Early Oligocene (Sannoisian). Each unit in Nebraska is subdivided into three parts (Lower, Middle, and Upper; or A, B, and C for the Chadron and Whitney, and A-B, C, and D for the Orella). Key beds such as fossil soils (paleosols), Purplish White beds, and volcanic ash layers, when considered with …
Two Unusual Occurrences Of Microstylolites, Benjamin H. Burma, Charles M. Riley
Two Unusual Occurrences Of Microstylolites, Benjamin H. Burma, Charles M. Riley
Department of Earth and Atmospheric Sciences: Faculty Publications
Microstylolites are here reported in both quartzite and in welded tuff. Descriptions of these unusual occurrences and accompanying photomicrographs suggest difficulties in applying the widely held theory of pressure-solution for the origin of these features.
Paleosols Of The Oligocene Of Nebraska, C. Bertrand Schultz, Lloyd G. Tanner, Cyril Harvey
Paleosols Of The Oligocene Of Nebraska, C. Bertrand Schultz, Lloyd G. Tanner, Cyril Harvey
Bulletin of the University of Nebraska State Museum (1924–2023)
Prominent paleosol ("buried" or "fossil" soil) complexes occur at the top of the middle Orella, upper Orella, lower Whitney, and upper Whitney in the Brule formation of Nebraska; and at the top of the "Lower Oreodon," "Middle Oreodon," "Upper Oreodon," and "Leptauchenia" beds in the Brule deposits of South Dakota. These paleosols have regional distribution and appear to be of value in stratigraphic correlations. Major faunal breaks seem to coincide with important buried soil zones, thus indicating that certain paleosols actually represent unconformities. Some of the soils were developed on old land surfaces where deposition was practically at a standstill …
Industrial Wastes, Charles E. Renn
Industrial Wastes, Charles E. Renn
United States Environmental Protection Agency: Publications
This paper presents a summary of experiences with a variety of cyanogenic wastes. The work has attempted to evaluate the interaction of waste bearing waters and the environment in terms of waste disposal design requirements. In this, the approach is somewhat more critical than that commonly taken by fisheries biologists, conservationists, and others who have been concerned with the "preventive" aspects of waste disposal.
The first phases of the work were designed to discover the tolerable limits of certain waste components to fresh water fish. This was undertaken in 1950; in the interval the composition of the wastes has been …
Occurrence Of Great Soil Groups In Nebraska, J. A. Elder
Occurrence Of Great Soil Groups In Nebraska, J. A. Elder
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Economic Analysis Of Forage Production And Utilization In Dakota And Dixon Counties, Nebraska, Howard W. Ottoson
Economic Analysis Of Forage Production And Utilization In Dakota And Dixon Counties, Nebraska, Howard W. Ottoson
Nebraska Agricultural Experiment Station: Historical Research Bulletins
Soil erosion remains a serious problem on many Nebraska farms despite programs of financial assistance, technical aid, and education by several national and state agencies. One reason that soil conserving adjustments in land use have not been made by farmers is that considerable uncertainty surrounds the economics of soil erosion control on the farm level. This study is an attempt to increase knowledge and reduce some of the uncertainty with regard to the economics of erosion control in a specific area.
Studies In Quantitative Paleontology. Iii. An Application Of Sequential Analysis To The Comparison Of Growth Stages And Growth Series, Benjamin H. Burma
Studies In Quantitative Paleontology. Iii. An Application Of Sequential Analysis To The Comparison Of Growth Stages And Growth Series, Benjamin H. Burma
Department of Earth and Atmospheric Sciences: Faculty Publications
Detailed directions for carrying out a comparison of characters of fossils by a sequential analysis are given. The method is adapted to comparison at a single growth stage and to the comparison of growth series. The method has the advantage of, in general, requiring fewer specimens than the classical methods of comparison.
Pre-North Horn Orogeny In Gunnison Plateau, Utah, Benjamin H. Burma, Clyde T. Hardy
Pre-North Horn Orogeny In Gunnison Plateau, Utah, Benjamin H. Burma, Clyde T. Hardy
Department of Earth and Atmospheric Sciences: Faculty Publications
This paper presents evidence for the post-Price River and pre-North Horn orogeny, in the Gunnison Plateau of central Utah (Fig. 1), and shows its magnitude. The first definite evidence of such a movement was found by C. T. Hardy in 1951, although it had been suggested previously, without definite evidence, by Gilliland (1949, 1951).
Stream Pollution, Ruth Patrick
Stream Pollution, Ruth Patrick
United States Environmental Protection Agency: Publications
This paper discusses the various ways in which aquatic organisms may be of use in solving problems associated with waste disposal. Since many state and federal laws set forth that nothing may be discharged that is deleterious to aquatic life, the most expedient way to determine the effect of an effluent is to study the aquatic organisms themselves.
In every river that has not been adversely affected by pollution there is a great variety of aquatic life. These organisms do not represent a great mass of living things, but rather they are organized into an intricately balance systems, often referred …
Commercial Fertilizers For Winter Wheat In Relation To The Properties Of Nebraska Soils, R. A. Olson, H. F. Rhoades
Commercial Fertilizers For Winter Wheat In Relation To The Properties Of Nebraska Soils, R. A. Olson, H. F. Rhoades
Nebraska Agricultural Experiment Station: Historical Research Bulletins
It is the purpose of this bulletin to report the investigations that have been made correlating soil properties and fertilization practices with yields of winter wheat. Since the success or failure of fertilization practices is so dependent on specific soil conditions, an attempt has been made here to further characterize the major soils of the different sections of the state which are devoted to wheat production and to analyze fertilizer practices and results in relation to the soil properties determined. The data are summarized for the four sections of the state designated as southeastern, east-south-central, west-south-central and western Nebraska. These …
An Annotated List Of The Orthoptera Of Nebraska Part Ii The Tettigidae And Acrididae, Harold A. Hauke
An Annotated List Of The Orthoptera Of Nebraska Part Ii The Tettigidae And Acrididae, Harold A. Hauke
Bulletin of the University of Nebraska State Museum (1924–2023)
This is the second of a series of papers on the Orthoptera of Nebraska. It is a continuation of the revision of an unpublished thesis on this subject by the author in 1934.
Log Of Test Holes Deuel And Garden Counties Nebraska, C. F. Keech, R. L. Schreurs
Log Of Test Holes Deuel And Garden Counties Nebraska, C. F. Keech, R. L. Schreurs
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Industrial Nebraska In Outline (Revised), G. E. Condra
Industrial Nebraska In Outline (Revised), G. E. Condra
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
An Introduction To The Geology Of Parke County, Indiana, Charles E. Wier, William J. Wayne
An Introduction To The Geology Of Parke County, Indiana, Charles E. Wier, William J. Wayne
Department of Earth and Atmospheric Sciences: Faculty Publications
Parke County, which is located about 50 miles west of Indianapolis, has an area of 447 square miles. It is bounded on the north by Fountain County, on the northeast by Montgomery County, on the east by Putnam County, on the south by Clay and Vigo Counties, and on the west by Vermillion County. This publication provides a summary of the glacial and bedrock geology of Parke County, Indiana, including information on landforms, bedrock geology and mineral resources.
Landscape features are natural phenomena which long have attracted man's attention. Fr.equent reference to the permanence of mountains has been made in …
Departmental Functions Of The Conservation And Survey Division, G. E. Condra, E. C. Reed
Departmental Functions Of The Conservation And Survey Division, G. E. Condra, E. C. Reed
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Origin And Scope Of The Conservation Program, G. E. Condra
Origin And Scope Of The Conservation Program, G. E. Condra
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Pleistocene Evolution Of The Ohio And Wabash Valleys, William J. Wayne
Pleistocene Evolution Of The Ohio And Wabash Valleys, William J. Wayne
Department of Earth and Atmospheric Sciences: Faculty Publications
Studies of drift thickness and character currently in progress in Indiana indicate changes in drainage that have occurred in Indiana and some adjoining states since the beginning of the Pleistocene epoch. After late Tertiary (Lexington) peneplanation the master-drainage line, the Mahomet-Teays Valley system, became entrenched about 200 feet below its former level before it was ponded by Nebraskan ice and diverted into a new course. During the Parker cycle, which was interrupted by glaciation, the present physiographic features of southern Indiana and their now buried extensions to the north became recognizable. Static rejuvenation then was a major factor in erosion …
A Report On Drosophila Collections In Nebraska, David D. Williams, Dwight D. Miller
A Report On Drosophila Collections In Nebraska, David D. Williams, Dwight D. Miller
Bulletin of the University of Nebraska State Museum (1924–2023)
Until rather recently little has been known of the Drosophila species of Nebraska. Sturtevant (1921) lists Nebraska as one of seven states from which no Drosophila had been reported. Patterson and Wagner (1943) show that collections of Drosophila pseudoobscura had been made in the vicinities of Scottsbluff and Kearney, but no other Drosophila species are reported from Nebraska in their publication.
Insect Types In The Collections Of The University Of Nebraska State Museum, Martin H. Muma
Insect Types In The Collections Of The University Of Nebraska State Museum, Martin H. Muma
Bulletin of the University of Nebraska State Museum (1924–2023)
In 1948 the insect collections at the University of Nebraska State Museum were placed in the care of the author. Prior to that date curatorial duties were assumed or assigned to full time teaching or research staff members. As would be expected under the latter circumstances, the organization of study material and types was neglected in many families and genera. Since 1948 type material, because of its intrinsic value, has received considerable attention. All primary and representative secondary types have been assembled in three museum cases and one slide cabinet for curatorial and study convenience.
The Red Cloud Sand And Gravel, A New Pleistocene Formation In Nebraska, C. Bertrand Schultz, Eugene C. Reed, A. L. Lugn
The Red Cloud Sand And Gravel, A New Pleistocene Formation In Nebraska, C. Bertrand Schultz, Eugene C. Reed, A. L. Lugn
Conservation and Survey Division: Faculty and Staff Publications
Recent studies of the stratigraphy and paleontology of the Pleistocene of Nebraska have resulted in additional data that require further clarification and partial revision of the Grand Island sand and gravel formation (1,2) in order that there may be no condusion as the results of varying usage of the term.
The Red Cloud Sand And Gravel, A New Pleistocene Formation In Nebraska, C. Bertrand Schultz, Eugene C. Reed, Alvin Leonard Lugn
The Red Cloud Sand And Gravel, A New Pleistocene Formation In Nebraska, C. Bertrand Schultz, Eugene C. Reed, Alvin Leonard Lugn
Department of Earth and Atmospheric Sciences: Faculty Publications
Recent studies of the stratigraphy and paleontology of the Pleistocene of Nebraska have resulted in additional data that require further clarification and partial revision of the Grand Island sand and gravel formation (1,2) in order that there may be no confusion as the result of varying usage of the term.
The Nebraska Geological Survey, the University of Nebraska State Museum, and the Department of Geology at the University of Nebraska have approved the foregoing restriction of the term Grand Island and the adoption of the new name Red Cloud sand and gravel, and these names will be used in future …
A Graphic Résumé Of The Pleistocene Of Nebraska (With Notes On The Fossil Mammalian Remains), C. Bertrand Schultz, Gilbert C. Lueninghoener, W. D. Frankforter
A Graphic Résumé Of The Pleistocene Of Nebraska (With Notes On The Fossil Mammalian Remains), C. Bertrand Schultz, Gilbert C. Lueninghoener, W. D. Frankforter
Bulletin of the University of Nebraska State Museum (1924–2023)
I T SEEMS desirable at this time to present a graphic resume of the Nebraska Pleistocene, together with a summary of the stratigraphic sequences of the fossil vertebrates. This report is based on data taken from various publications' in addition to information gathered by the present writers during the past fifteen or more field seasons. Intensive work has been done in the past five years in connection with recovery of paleontological material in the areas where government dams are under construction (Schultz, Lueninghoener, and Frankforter, 1948; Schultz and Frankforter, 1948; Holder and Wike, 1949). The information in the present paper …
Progress Report: Chemical Quality Of The Surface Waters In The Loup River Basin, Nebraska, John G. Connor
Progress Report: Chemical Quality Of The Surface Waters In The Loup River Basin, Nebraska, John G. Connor
United States Geological Survey: Publications
The Loup River and its tributaries transport moderate amounts of siliceous minerals from the sand hills region of north-central Nebraska to the Platte River near Columbus, Nebr. Predominant chemical characteristics of these waters are a high percentage of silica, moderate hardness, and a low percentage of sodium. The composition of the Loup River water is influenced by the geologic formations through which ground water, a major contributor to the flows of the Loup River branches, has percolated. Investigation of water quality at or near proposed dam sites in the Loup River basin indicates that if soil and drainage conditions are …
Glacial Geology Of Wabash County, Indiana, William J. Wayne, William D. Thornbury
Glacial Geology Of Wabash County, Indiana, William J. Wayne, William D. Thornbury
Department of Earth and Atmospheric Sciences: Faculty Publications
Most of the topographic features of Wabash County are of glacial origin or are glacial deposits eroded by postglacial streams. Shales, limestones, and dolomites, all Silurian, are exposed only along some of the deeper valleys. Four major rivers and six smaller streams in Wabash County flow in glacial sluiceways. Only the Eel and Wabash sluiceways carried large quantities of melt-water. The Eel River valley train occupies an interlobate position, and the Wabash Valley bears evidence of its roles as a sluiceway and as an outlet for glacial Lake Maumee in late Cary time. Three topographic areas comprise the upland part …
Effect Of Stubble Mulching On Number And Activity Of Earthworms, S. P. Teotia, F. L. Duley, T. M. Mccalla
Effect Of Stubble Mulching On Number And Activity Of Earthworms, S. P. Teotia, F. L. Duley, T. M. Mccalla
Nebraska Agricultural Experiment Station: Historical Research Bulletins
A survey of earthworm population under different cropping systems was made under stubble mulch farming and where the residue was plowed under. The influence of earthworms on some of the important physical and biological properties of the soil was studied. Their role in the decomposition of crop residues was also determined.
The Pleistocene Geology Of The Middle ·Portion Of The Elkhorn River Valley, W. D. Frankforter
The Pleistocene Geology Of The Middle ·Portion Of The Elkhorn River Valley, W. D. Frankforter
University Studies (University of Nebraska) (1888–1984)
The present report is a physiographic and paleontologic approach to the Pleistocene history of a portion of the Elkhorn River Valley in parts of Dodge, Cuming and Stanton counties in northeastern Nebraska. The area is important for correlation of deposits between the glacial and periglacial regions. Some of the critical stratigraphic units used for correlation in the Pleistocene of these regions are present in close association with the tills and contain fossils which make possible reliable statements on contemporaneity of deposits. The subsequent geologic history and present physiographic expression of this area have been greatly controlled and influenced by the …