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Articles 4291 - 4320 of 4538

Full-Text Articles in Earth Sciences

Effect Of Organic Matter Decomposition On The Solubility And Fixation Of Phosphorus In Alkaline Soils, H. F. Rhoades Jun 1939

Effect Of Organic Matter Decomposition On The Solubility And Fixation Of Phosphorus In Alkaline Soils, H. F. Rhoades

Nebraska Agricultural Experiment Station: Historical Research Bulletins

It is the purpose of this bulletin to report a laboratory study on the effects of organic matter decomposition on the solubility and fixation of phosphorus in alkaline soils. The study included the following: (1) a comparison of the effects of a decomposing organic material with those of a physiologically acid nitrogen fertilizer, and (2) a comparison of the effects of different organic materials of varying phosphorus contents.


Effect Of Soil Type, Slope, And Surface Conditions On Intake Of Water, F. L. Duley, L. L. Kelly May 1939

Effect Of Soil Type, Slope, And Surface Conditions On Intake Of Water, F. L. Duley, L. L. Kelly

Nebraska Agricultural Experiment Station: Historical Research Bulletins

In connection with investigations of runoff and erosion in the Great Plains an attempt has been made by means of artificial applications of water to determine certain principles concerning the effect of different soils and soil conditions on runoff and soil erosion. Such information is needed in planning all field operations dealing with soil erosion and moisture control. It is also needed in connection with watershed studies that are being established in the Central Great Plains, dealing with runoff and flood flows from larger areas. The method employed makes it possible to obtain comparable data on a wide range of …


An Outline Of The Principal Natural Resources Of Nebraska And Their Conservation, George E. Condra Jan 1939

An Outline Of The Principal Natural Resources Of Nebraska And Their Conservation, George E. Condra

George E. Condra Publications

Nebraska is well endowed with important natural resources, such as stone, clay, sand, soil, water, prairie, forests and wildlife. However, soil and water are our basic heritage because they, more than other resources, support native life, agriculture, industry, and social development.


An Outline Of Nebraska's Industries, George E. Condra Jan 1939

An Outline Of Nebraska's Industries, George E. Condra

George E. Condra Publications

The principal industries of Nebraska are summarized into the following groups: mineral, agriculture, manufacturing, transportation and publishing, and trade or mechandizing.


A New Giant Camel Gigantocamelus Fricki, Gen. Et Sp. Nov., Erwin Hinckley Barbour, C. Bertrand Schultz Jan 1939

A New Giant Camel Gigantocamelus Fricki, Gen. Et Sp. Nov., Erwin Hinckley Barbour, C. Bertrand Schultz

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

A lower Pleistocene deposit containing fossil vertebrates near Broadwater, Morrill county, Nebraska, has been reported upon by the writers, beginning three years ago. Five fossil quarries have been opened since the site was discovered in 1936.


The White River Oligocene Rodent Diplolophus, Erwin Hinckley Barbour, Thompson M. Stout Jan 1939

The White River Oligocene Rodent Diplolophus, Erwin Hinckley Barbour, Thompson M. Stout

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

The rich and varied nature of the mammalian faunas of the White River Oligocene has been recognized for many years, but the exact geologic succession is only now becoming known. In these faunal assemblages the rodents and lagomorphs appear to have been important elements, perhaps numerically as abundant in the Oligocene as are these same groups at present.


Deep Wells At Lincoln, Nebraska, E. C. Reed, G. E. Condra Jan 1939

Deep Wells At Lincoln, Nebraska, E. C. Reed, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Upper Carboniferous Formations In The Lower Platte Valley, G. E. Condra, O. J. Scherer Jan 1939

Upper Carboniferous Formations In The Lower Platte Valley, G. E. Condra, O. J. Scherer

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Classification Of The Tertiary System In Nebraska, Alvin Leonard Lugn Jan 1939

Classification Of The Tertiary System In Nebraska, Alvin Leonard Lugn

Department of Earth and Atmospheric Sciences: Faculty Publications

This paper represents the results of almost continuous research by the Nebraska State Geological Survey on Tertiary stratigraphy in Nebraska during a perIod of more than 10 years, with special attention to the present acceptable stratigraphic nomenclature. Cogent reasons are presented for the retention of such well-known names as White River, Arikaree, and Ogallala, all now redefined and elevated to group ranking. “Loup Fork” and “Loup River,” "Nebraska beds", and “Republican River" are considered obsolete. The application of fossil seed zones to problems of correlation is noted. The table of Tertiary Formations of Nebraska summarizes the Tertiary stratigraphy in Nebraska.


Correlation Of The Amerada Petroleum Company Well Drilled Near Nehawka, Nebraska, E. C. Reed, G. E. Condra Jan 1939

Correlation Of The Amerada Petroleum Company Well Drilled Near Nehawka, Nebraska, E. C. Reed, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Nebraska State Geological Survey And The "Valentine Problem", Alvin Leonard Lugn Sep 1938

The Nebraska State Geological Survey And The "Valentine Problem", Alvin Leonard Lugn

Department of Earth and Atmospheric Sciences: Faculty Publications

The Nebraska State Geological Survey is primarily concerned with the stratigraphic classification of the Tertiary lithologic units in this state. When the stratigraphic relationships are fully understood, the faunas can be properly and correctly related and named, whether the stratigraphic names or others are used. It should be understood that this survey, in determmmg its acceptance of stratigraphic names on the basis of priority, is making every effort to differentiate names which have been applied in a strictly stratigraphic sense from names which. while they may be older, were applied in only a geographic or faunal sense and have only …


Cheese Production In Nebraska. University Of Nebraska, Walter Kollmorgen Jul 1938

Cheese Production In Nebraska. University Of Nebraska, Walter Kollmorgen

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Ice Cream Production In Nebraska., Walter Kollmorgen Jul 1938

Ice Cream Production In Nebraska., Walter Kollmorgen

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


A Proposed Method For Classifying And Evaluating Soils On The Basis Of Productivity And Use Suitabilities, Arthur Anderson, A. P. Nelson, F. A. Hayes, I. D. Wood May 1938

A Proposed Method For Classifying And Evaluating Soils On The Basis Of Productivity And Use Suitabilities, Arthur Anderson, A. P. Nelson, F. A. Hayes, I. D. Wood

Nebraska Agricultural Experiment Station: Historical Research Bulletins

It is the object of this paper to present a method for classifying and evaluating the soils as mapped in regular soil surveys on the basis of land types, which are here defined as areas having reasonably similar productivity and use suitabilities. The standards used to differentiate land types will vary according to the desired objectives, but any material difference in yield, or in practices necessary to maintain a desirable level of productivity will justify recognition of land types. The proposed procedure involves a more detailed study of the influence which soils, slope, erosion, and drainage have on specific crops …


The Butter Industry Of Nebraska, Walter Kollmorgen Mar 1938

The Butter Industry Of Nebraska, Walter Kollmorgen

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Report Of Progress Of The Nebraska State Museum, Erwin H. Barbour Jan 1938

Report Of Progress Of The Nebraska State Museum, Erwin H. Barbour

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

The history and development of the Nebraska State Museum since 1891 have been summarized in a preliminary manner up to 1925 in the first number of Volume I of the Bulletin of the Nebraska State Museum.1 Since 1927, the collections of the Nebraska State Museum, The University of Nebraska, have been housed in a new building, Morrill Hall, on the city campus of The University of Nebraska. It now seems fitting to report upon the exceptional progress of the past few years, and to acknowledge the fine cooperation of those who have helped to make it possible.


Correlation Of Formations Drilled In The Midland Forester Well Near Fremont, Nebraska, E. C. Reed, G. E. Condra Jan 1938

Correlation Of Formations Drilled In The Midland Forester Well Near Fremont, Nebraska, E. C. Reed, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Geology And Ground-Water Resources Of South-Central Nebraska. With Special Reference To The Platte River Valley Between Chapman And Gothenburg, Alvin Leonard Lugn, L. K. Wenzel Jan 1938

Geology And Ground-Water Resources Of South-Central Nebraska. With Special Reference To The Platte River Valley Between Chapman And Gothenburg, Alvin Leonard Lugn, L. K. Wenzel

Department of Earth and Atmospheric Sciences: Faculty Publications

The investigation here reported, which covered a period of about 5 years, 1929 to 1933, was made for the purpose of determining the available supply of ground water in south-central Nebraska, the origin and discharge of the ground water, and the relation of the geologic and ground-water conditions in the Platte River Valley to the conditions occurring under the plains to the south. The area was found to be underlain by permeable Pleistocene and Tertiary sand .and gravel, much of which is saturated and yields relatively large quantities of water to wells. Except in a few isolated places the ground-water …


The Redfield Anticline Of Nebraska And Iowa, G. E. Condra, E. C. Reed Jan 1938

The Redfield Anticline Of Nebraska And Iowa, G. E. Condra, E. C. Reed

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Milk Industry Of Nebraska, Walter Kollmorgen Dec 1937

The Milk Industry Of Nebraska, Walter Kollmorgen

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Freestone County, Texas [Water Quality Survey Of Wells And Springs With Test Hole Data, 1936], Samuel F. Turner Jun 1937

Freestone County, Texas [Water Quality Survey Of Wells And Springs With Test Hole Data, 1936], Samuel F. Turner

United States Geological Survey: Water Reports and Publications

Introduction

The purpose of this survey was to obtain information concerning existing wells and springs and the quantity and quality of water they yield, and to put down test holes where additional information was needed.

This project was part of a statewide Works Progress Administration project known as a "Statewide Inventory of Water Wells," sponsored by the [Texas] State Board of Water Engineers. The Division of Ground Water of the United States Geological Survey cooperated in the technical direction of the project and the Bureau of Industrial Chemistry of the University of Texas furnished laboratory space and equipment and supervised …


Correlation Of The Members Of The Shawnee Group In Southeastern Nebraska And Adjacent Areas Of Iowa, Missouri And Kansas, G. E. Condra, E. C. Reed Jan 1937

Correlation Of The Members Of The Shawnee Group In Southeastern Nebraska And Adjacent Areas Of Iowa, Missouri And Kansas, G. E. Condra, E. C. Reed

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Conservation Of Land And Water Resources Of Nebraska, G. E. Condra Dec 1936

Conservation Of Land And Water Resources Of Nebraska, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


A Preliminary Study Of The Animal Ecology Of The Niobrara Game Preserve, Watson E. Beed Oct 1936

A Preliminary Study Of The Animal Ecology Of The Niobrara Game Preserve, Watson E. Beed

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


A Pleistocene Lake In The White River Valley, Paul Macclintock, Erwin Hinckley Barbour, C. B. Schultz, Alvin Leonard Lugn Jul 1936

A Pleistocene Lake In The White River Valley, Paul Macclintock, Erwin Hinckley Barbour, C. B. Schultz, Alvin Leonard Lugn

Department of Earth and Atmospheric Sciences: Faculty Publications

DURING the course of a field conference on the Pleistocene geology of western Nebraska, carved sediments were found in the headwater drainage of White River near Crawford, Nebraska. A reconnaissance of White River Valley revealed them to be present also in the mid-course, near Interior, South Dakota, and at the mouth, near Chamberlain, South Dakota, where the White River joins the Missouri (Fig. 1). These isolated occurrences of varves, over a distance of 240 miles, are so similar that a correlation seemed possible. Furthermore, since the varves occur within the area where Yuma artifacts are found, it was thought that …


An Analysis Of The Flowering Plants Of Nebraska, John Mack Winter Apr 1936

An Analysis Of The Flowering Plants Of Nebraska, John Mack Winter

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Palaeontologic And Geologic Consideration Of Early Man In Nebraska, Erwin Hinckley Barbour, C. Bertrand Schultz Jan 1936

Palaeontologic And Geologic Consideration Of Early Man In Nebraska, Erwin Hinckley Barbour, C. Bertrand Schultz

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

There has been much discussion recently relative to the geologic age of Yuma and Folsom artifacts. The writers submit the following palaeontological and geological data which may aid in a better interpretation of the subject. This paper deals with three localities in Nebraska where Yuma and Folsom implements have been found with extinct mammals; namely, the Scottsbluff Bison Quarry, the Sand Hill blow-out sites, and the Sioux County artifact sites.


Water-Bearing Formations Of Nebraska, G. E. Condra, E. C. Reed Jan 1936

Water-Bearing Formations Of Nebraska, G. E. Condra, E. C. Reed

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Ostracoda Of The Missouri Series In Nebraska, W. R. Johnson Jan 1936

The Ostracoda Of The Missouri Series In Nebraska, W. R. Johnson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Conservation Of The Prehistoric Remains Of Nebraska, Alvin Leonard Lugn Oct 1935

Conservation Of The Prehistoric Remains Of Nebraska, Alvin Leonard Lugn

Department of Earth and Atmospheric Sciences: Faculty Publications

A RESOLUTION has recently been adopted by both houses of the Nebraska legislature to conserve the scientifically very valuable deposits of fossil and other prehistoric remains which occur in the state. This is not to be construed as an unfriendly move on the part of the sponsors of this act. The Nebraska Geological Survey welcomes serious scientific study and research within the state by all persons and institutions who seriously desire to investigate and collect for purely scientific purposes. There is no intention to restrict or curtail the collection of materials by properly accredited representatives of educational institutions and museums. …