Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- Western Michigan University (18242)
- University of Nebraska - Lincoln (1733)
- Missouri University of Science and Technology (579)
- University of Kentucky (526)
- University of South Florida (472)
-
- Montana Tech Library (456)
- Utah State University (451)
- Portland State University (415)
- Western Washington University (409)
- University of North Dakota (380)
- Bulletin of the Mineral Research and Exploration (366)
- Western Kentucky University (363)
- University of New Mexico (280)
- Selected Works (264)
- University of Nevada, Las Vegas (234)
- Smith College (209)
- University of Arkansas, Fayetteville (202)
- University of Tennessee, Knoxville (201)
- Central Washington University (188)
- Brigham Young University (184)
- Western University (180)
- University of Texas at El Paso (161)
- Old Dominion University (159)
- Michigan Technological University (153)
- University at Albany, State University of New York (112)
- West Virginia University (104)
- Louisiana State University (103)
- Stephen F. Austin State University (100)
- City University of New York (CUNY) (98)
- William & Mary (97)
- Keyword
-
- Geology (608)
- Nebraska (475)
- Montana (273)
- Groundwater (254)
- Geochemistry (208)
-
- Kentucky (183)
- Karst (162)
- Stratigraphy (161)
- Tectonics (122)
- Utah (122)
- Butte (120)
- Water (117)
- Geomorphology (113)
- Geophysics (108)
- Hydrogeology (104)
- Petrology (101)
- Hydrology (97)
- Copper (90)
- Limestone (90)
- Seismology (82)
- Sedimentology (80)
- Mars (75)
- Test (75)
- Earth sciences (74)
- Shale (74)
- Logs (73)
- Hole (72)
- Map (71)
- GIS (69)
- Geochronology (68)
- Publication Year
- Publication
-
- Legacy Scout Tickets from Pure Oil Company (11044)
- Thin Sections (5745)
- Legacy Color Lithology Strip Logs (1152)
- Conservation and Survey Division (838)
- Theses and Dissertations (669)
-
- Masters Theses (592)
- United States Geological Survey: Staff Publications (501)
- Bachelors Theses and Reports, 1928 - 1970 (419)
- Bulletin of the Mineral Research and Exploration (366)
- WWU Graduate School Collection (293)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (276)
- Earth and Planetary Sciences ETDs (275)
- Map and Chart--KGS (232)
- Dissertations and Theses (219)
- Geosciences: Faculty Publications (205)
- International Journal of Speleology (200)
- Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works (189)
- Geology Faculty Publications and Presentations (180)
- UNLV Theses, Dissertations, Professional Papers, and Capstones (169)
- USF Tampa Graduate Theses and Dissertations (166)
- Geology Faculty Publications (160)
- Doctoral Dissertations (158)
- Open Access Theses & Dissertations (158)
- Electronic Thesis and Dissertation Repository (157)
- Electronic Theses and Dissertations (152)
- Mammoth Cave Research Symposia (132)
- Graduate Theses and Dissertations (131)
- Geosciences Faculty Publications (119)
- Bulletin of the University of Nebraska State Museum (113)
- Geology Theses and Dissertations (111)
- Publication Type
Articles 29251 - 29280 of 29714
Full-Text Articles in Physical Sciences and Mathematics
An Experimental Investigation Of The Age Hardening Of Copper With Manganese Silicide, Ali Kozak
An Experimental Investigation Of The Age Hardening Of Copper With Manganese Silicide, Ali Kozak
Bachelors Theses and Reports, 1928 - 1970
The subject of the thesis was based upon the theory of precipitation or age hardening of the copper by the compound formed by the Manganese and silicon present in the ternary Cu-Mn-Si alloy. The effect of the heat treatment to such an alloy was to be studied and the best aging time and temperature was to be determined.
The Electroformation Of Lithium-Lead Alloys From Molten Electrolytes, Thomas Prater
The Electroformation Of Lithium-Lead Alloys From Molten Electrolytes, Thomas Prater
Bachelors Theses and Reports, 1928 - 1970
An attempt was made to make lead-lithium alloys by electrodeposition of lithium using a molten bath and a molten lead cathode.The variables taken into consideration were: composition of the melt, temperature of the melt, and current density. The purpose of changing these factors was to determine what effect each had on the current efficiency.
The Geology And Ore Deposits Of The Ermont Mines, James L. Kelly
The Geology And Ore Deposits Of The Ermont Mines, James L. Kelly
Bachelors Theses and Reports, 1928 - 1970
The Ermont Mines are located sixteen miles northwest of Dillon, Montana, in section 35 of T.6S., R.11W. This is in the central part of Beaverhead County. They are considered to be in the Argenta mining district, the town of Argenta lying three miles to the northeast.
The Concentration Of Scheelite From The Gold Concentrates Of The Jardine Mining Company, John H. Huxley
The Concentration Of Scheelite From The Gold Concentrates Of The Jardine Mining Company, John H. Huxley
Bachelors Theses and Reports, 1928 - 1970
The Purpose of this thesis was to investigate the possibility of concentrating scheelite from Wilfley table gold concentrates from the mill of the Jardine Mining Company; and to determine whether such concentration is economically feasible and the product of sufficiently high grade to meet commercial specifications for such a product.
The Testing And Concentration Of Lake Chelan Copper Ore, Thor W. Johnson
The Testing And Concentration Of Lake Chelan Copper Ore, Thor W. Johnson
Bachelors Theses and Reports, 1928 - 1970
The geologic history of the Holden area and Lake Chelan district is an integral part of the history of the Cascade Mountain Range. The structure is very complex and the rocks, which have been subjected to intense metamorphic action, are portions of a roof pendant and consists of gneisses, schists and quartzites that are often difficult to correlate.
Ground Water In The Lake Basin Field And Adjacent Area, Herman Neibauer
Ground Water In The Lake Basin Field And Adjacent Area, Herman Neibauer
Bachelors Theses and Reports, 1928 - 1970
This thesis consists of studying the stratigraphic and structural features of the Lake Basin Field and an adjacent area with special emphasis upon the ground water conditions present.
Gas Analysis By Absorption, Albert D. Mcmahon
Gas Analysis By Absorption, Albert D. Mcmahon
Bachelors Theses and Reports, 1928 - 1970
There is practically only one method of gas analysis. This was worked out many years ago by Bunsen, Hempel, and Winkler and consists in the successive absorption with different chemicals of the various constituents of the gas. The only improvement to this method is the oxidation and combustion of different components of a mixture followed by absorption.
Relationships Of Manganese Minerals In The Butte District, Charles F. Parent
Relationships Of Manganese Minerals In The Butte District, Charles F. Parent
Bachelors Theses and Reports, 1928 - 1970
The use of manganese in the steel industry as a deoxidizing and desulfidizing agent makes it a necessity in modern industry, while the various alloy steels using manganese for the quality of toughness are also indispensable. Manganese is also used in the manufacture of such various articles as battery cells, paints and glass.
Pegmatites In Southwestern Montana, Ora Rostad
Pegmatites In Southwestern Montana, Ora Rostad
Bachelors Theses and Reports, 1928 - 1970
Little has been written on pegmatites in Montana except in conjunction with reports on mining districts. This subject was chosen as a senior thesis to see what facts could be ascertained regarding pegmatites alone, and an attempt has been made by the writer to assemble all written material on pegmatites in southwestern Montana, and to study specimens from those that could be reached or from which specimens were available.
A Study Of The Concentration Of A Low-Grade Manganese Ore From The Ennis District, John B. Schuettenhelm
A Study Of The Concentration Of A Low-Grade Manganese Ore From The Ennis District, John B. Schuettenhelm
Bachelors Theses and Reports, 1928 - 1970
The purpose of the investigation was to determine the most effective means of concentrating the manganese in the ore. The study was that of identification of the minerals present. This showed the presence of oxides of manganese and iron, and carbonates of calcium and manganese. Methods of investigation were planned to determined whether the ore could be concentrated effectively by gravity concentration methods.
Oil And Gas Production Methods In Montana, Edgar A. Scholz
Oil And Gas Production Methods In Montana, Edgar A. Scholz
Bachelors Theses and Reports, 1928 - 1970
Montana's oil and gas industries aggregate a gross income of over 12,000,000 annually to the state. Oil and gas fields have been thoroughly discussed in literature as to geology, location, production and future possibilities. The specific object of this report has been to compile a comprehensive study of the production methods as they occur.
Cambrian Stratigraphy In The Northern Wasatch Region, George Burke Maxey
Cambrian Stratigraphy In The Northern Wasatch Region, George Burke Maxey
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
An exhaustive field study of the Cambrian stratigraphy of the northern Wasatch region indicates that in addition to the Blacksmith Fork section there are two complete and better exposed middle and upper sections. Several other good exposures of the lower Middle Cambrian section have been studied in detail. The Spence shale is found to be a member low in the Langston, not the basal member of the Ute. Relative ages of the Spence shale and Ptarmigania faunas have been determined. Other Cambrian faunal zones have been discovered and are discussed. Paleontologic evidence suggests that the Nounan formation is of Upper …
Newly Discovered, Non-Metallic Mineral Deposits Of Economic Value In Minnesota, George A. Thiel
Newly Discovered, Non-Metallic Mineral Deposits Of Economic Value In Minnesota, George A. Thiel
Journal of the Minnesota Academy of Science
No abstract provided.
The Pipy Concretions Of The Arikaree, C. Bertrand Schultz
The Pipy Concretions Of The Arikaree, C. Bertrand Schultz
Bulletin of the University of Nebraska State Museum
The pipy concretions of the Arikaree (lower Miocene) of Nebraska and adjacent states were first described by Nelson Horatio Darton (1899, p. 743) as "characteristic layers of hard, fine-grained, dark-gray concretions, often consisting of aggregations of long, irregular, cylindrical masses" (see Figures 30, 32, 34, and 35). The individual pipes vary in diameter from a few inches to several feet, and in length from a few inches to a hundred yards or more. Tests demonstrate that pipy concretions are composed of sand cemented by calcium carbonate. When dipped in acid the cement is dissolved and the concretion is reduced to …
The Ancestral Ursid, Hemicyon, In Nebraska, Edwin H. Colbert
The Ancestral Ursid, Hemicyon, In Nebraska, Edwin H. Colbert
Bulletin of the University of Nebraska State Museum
During the summer of 1928, a University of Nebraska State Museum field party, composed of Dr. A. L. Lugn and the writer, made a collection of upper Miocene and lower Pliocene mammals in Brown and Cherry counties, Nebraska. This collection was sponsored and made possible by the generosity of the late Hon. Charles H. Morrill.
A New Fossil Bovid From Nebraska With Notice Of A New Bison Quarry In Texas, C. Bertrand Schultz
A New Fossil Bovid From Nebraska With Notice Of A New Bison Quarry In Texas, C. Bertrand Schultz
Bulletin of the University of Nebraska State Museum
An interesting and unique bovid skull was reported to the staff of the University of Nebraska State Museum in 1938 by Mr. Alvin McReynolds of Nehawka, Nebraska. The specimen was found in 1933 in a ravine north of Nehawka by Messrs. Merritt and Harold Dodson, brothers. Although the skull was not in place, it appears to have been washed out of a nearby Pleistocene clay deposit by floodwaters. The specimen is well preserved and is of a dark brown, almost black color. In 1938 it was loaned to the Museum for study and photographing but was not obtained as a …
A Shovel-Tusked Mastodon, Arnebelodon Fricki, From Kansas, Erwin Hinckley Barbour, Claude W. Hibbard
A Shovel-Tusked Mastodon, Arnebelodon Fricki, From Kansas, Erwin Hinckley Barbour, Claude W. Hibbard
Bulletin of the University of Nebraska State Museum
Since the Amebelodontinae were first announced (Barbour 1927), a number of examples of the genus Amebelodon have presented themselves in various parts of Nebraska, Colorado, and in several places in Kansas. Thus its range has already been materially extended, many skeletal parts added, and the hope kindled that knowledge of this remarkable group of proboscideans is destined to be greatly enriched within the next few years. As may be seen in the accompanying lists of the known parts of Amebelodon preserved in various museums, there are already at hand the bones necessary for the assemblage of a nearly complete composite …
Türki̇ye Jeoloji̇k Hari̇tasi, Necdet Egeran
Türki̇ye Jeoloji̇k Hari̇tasi, Necdet Egeran
Bulletin of the Mineral Research and Exploration
No abstract provided.
Conodonts From The Marathon Basin, Brewster County, Texas, Roy William Graves Jr.
Conodonts From The Marathon Basin, Brewster County, Texas, Roy William Graves Jr.
Masters Theses
"Conodonts were discovered in the limestones of the Marathon region in the Big Bend country, Brewster County, Texas, as a result of field work during the summer of 1939. This was not the first known occurrence of these fossils from this region, however, as King earlier mentioned the occurrence of conodonts in siliceous shales of Devonian age. The discovery of conodonts in the Ordovician and Pennsylvanian limestones of the area had its inception in the attempt to determine whether the Dimple limestone (lower Pennsylvanian) or Maravillas limestone (upper Ordovician) was involved in a fault that was being mapped. These limestones …
A New Species Of Sphenophalos From The Upper Ogallala Of Nebraska, Erwin Hinckley Barbour, C. Bertrand Schultz
A New Species Of Sphenophalos From The Upper Ogallala Of Nebraska, Erwin Hinckley Barbour, C. Bertrand Schultz
Bulletin of the University of Nebraska State Museum
The genus Sphenophalos was described by John C. Merriam (1909, p. 319-30), who based his description on a fragmentary horn-core (Uni. of Calif. No. 11887) from the late Tertiary deposits near Thousand Creek in northern Humbolt county, Nevada. Knowledge of Sphenophalos, however, is still confined to this single, fragmented type horn-core (Frick 1937, p. 472) and other fragmental specimens (Furlong 1932, p. 27-36).
Aksaray Konya Arasinda Volkani̇k Arazi̇, E. Lahn
Aksaray Konya Arasinda Volkani̇k Arazi̇, E. Lahn
Bulletin of the Mineral Research and Exploration
No abstract provided.
Dokümantasyon Petrol Aramasinda Jeoşi̇mi̇k Üsul, - -
Dokümantasyon Petrol Aramasinda Jeoşi̇mi̇k Üsul, - -
Bulletin of the Mineral Research and Exploration
No abstract provided.
Eski̇pazar Transversal Dağlarinin Jeoloji̇si̇ Ve Maden Suyu Menbalari, M. Blumenthal
Eski̇pazar Transversal Dağlarinin Jeoloji̇si̇ Ve Maden Suyu Menbalari, M. Blumenthal
Bulletin of the Mineral Research and Exploration
No abstract provided.
M.T.A. Ensti̇tüsü Altinci Çalişma Yilinin Tekni̇k Bi̇lançosu, - -
M.T.A. Ensti̇tüsü Altinci Çalişma Yilinin Tekni̇k Bi̇lançosu, - -
Bulletin of the Mineral Research and Exploration
No abstract provided.
Garbi̇ Ve Merkezi̇ Anadolu Sahasi Dahi̇li̇nde Genç Paleozoi̇kteki̇ Magmati̇k Faali̇yet Hakkinda Mülahazalar, P. De Wi̇jkerslooth
Garbi̇ Ve Merkezi̇ Anadolu Sahasi Dahi̇li̇nde Genç Paleozoi̇kteki̇ Magmati̇k Faali̇yet Hakkinda Mülahazalar, P. De Wi̇jkerslooth
Bulletin of the Mineral Research and Exploration
No abstract provided.
Eski̇pazar Transversal Dağlarinin Jeoloji̇si̇ Ve Maden Suyu Menbalari Ii, M. Blumenthal
Eski̇pazar Transversal Dağlarinin Jeoloji̇si̇ Ve Maden Suyu Menbalari Ii, M. Blumenthal
Bulletin of the Mineral Research and Exploration
No abstract provided.
A Study Of A Carbonaceous Gold Ore, James S. Huckaba
A Study Of A Carbonaceous Gold Ore, James S. Huckaba
Bachelors Theses and Reports, 1928 - 1970
The presence of graphite in the ore of the Missouri-McKee Mine has made its treatment by the methods now used quite unsatisfactory. The study was undertaken to develop a new flow sheet which would give a high recovery and yet be economical enough to handle low grade material.
A Geological Report On An Area Five Miles Southeast Of Renova, Montana, And On An Area Seven Miles South Of Jefferson Island, Montana, Herman Neibauer
A Geological Report On An Area Five Miles Southeast Of Renova, Montana, And On An Area Seven Miles South Of Jefferson Island, Montana, Herman Neibauer
Bachelors Theses and Reports, 1928 - 1970
This trip was conducted to give those students working for their respective degrees an excellent opportunity to work under actual field conditions. A total of three weeks was taken to complete the required work. Two weeks were spent in the field gathering data, and making maps, and the last week was spent in the drawing room at the college preparing the final map.
The Age-Hardening Of Aluminum With Mgzn2, Sidney E. Worthen
The Age-Hardening Of Aluminum With Mgzn2, Sidney E. Worthen
Bachelors Theses and Reports, 1928 - 1970
The purpose of this thesis is to investigate the age-hardening of aluminum with magnesium and zinc in such proportions as to conform to the compound MgZn2.
Because of a lack of time and proper equipment, the only property investigated was the hardness as indicated by the Rockwell Superficial Hardness Tester.