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 (19480)
- University of Kentucky (10980)
- University of Nebraska - Lincoln (4541)
- University of South Florida (1881)
- China Coal Technology and Engineering Group (CCTEG) (1822)
-
- Department of Primary Industries and Regional Development, Western Australia (1674)
- Utah State University (1564)
- TÜBİTAK (917)
- Missouri University of Science and Technology (782)
- University of Arkansas, Fayetteville (768)
- Portland State University (671)
- Boise State University (667)
- Old Dominion University (663)
- University of Nevada, Las Vegas (521)
- University of Texas Rio Grande Valley (520)
- Montana Tech Library (496)
- Western Kentucky University (496)
- University of Colorado Law School (481)
- University of North Dakota (448)
- Louisiana State University (427)
- University of New Mexico (402)
- Montclair State University (387)
- Central Washington University (368)
- City University of New York (CUNY) (315)
- University of Texas at El Paso (315)
- University of South Carolina (280)
- Michigan Technological University (254)
- Brigham Young University (240)
- University of Texas at Arlington (237)
- University of New Hampshire (230)
- Keyword
-
- Western Australia (1183)
- Geology (902)
- Grains and field crops (625)
- Groundwater (623)
- Nebraska (589)
-
- Climate change (464)
- Grazing (407)
- Geochemistry (403)
- Soil (372)
- Hydrology (358)
- Montana (326)
- Nitrogen (323)
- Kentucky (302)
- Remote sensing (284)
- Salinity (282)
- Water quality (281)
- Drought (277)
- Utah (272)
- Water (240)
- Karst (233)
- Geophysics (228)
- Alfalfa (223)
- Climate (219)
- Hydrogeology (215)
- Phosphorus (213)
- Geomorphology (205)
- Stratigraphy (205)
- Agriculture (204)
- Irrigation (202)
- United States (191)
- Publication Year
- Publication
-
- Legacy Scout Tickets from Pure Oil Company (11044)
- IGC Proceedings (1977-2023) (9261)
- Thin Sections (6677)
- Coal Geology & Exploration (1822)
- Legacy Color Lithology Strip Logs (1152)
-
- United States Geological Survey: Staff Publications (1026)
- Turkish Journal of Earth Sciences (917)
- Conservation and Survey Division: Faculty and Staff Publications (901)
- International Journal of Speleology (890)
- Theses and Dissertations (835)
- Department of Earth and Atmospheric Sciences: Faculty Publications (673)
- Experimental Summaries - Plant Research (668)
- Masters Theses (591)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (453)
- School of Earth, Environmental, & Marine Sciences Faculty Publications (429)
- Bachelors Theses and Reports, 1928 - 1970 (423)
- Geosciences Faculty Publications and Presentations (398)
- Faculty Publications (383)
- Kentucky Alfalfa and Stored Forage Conference (382)
- School of Geosciences Faculty and Staff Publications (355)
- Dissertations and Theses (343)
- Earth and Planetary Sciences ETDs (343)
- Graduate Theses and Dissertations (339)
- Electronic Theses and Dissertations (325)
- Memorandum (316)
- Resource management technical reports (315)
- Open Access Theses & Dissertations (294)
- Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works (280)
- USF Tampa Graduate Theses and Dissertations (272)
- Department of Earth and Environmental Studies Faculty Scholarship and Creative Works (266)
- Publication Type
Articles 59251 - 59280 of 59545
Full-Text Articles in Physical Sciences and Mathematics
State Geologist's Report On The Geology Of Maine 1930-1932, Joseph Conrad Twinem, Edward H. Perkins
State Geologist's Report On The Geology Of Maine 1930-1932, Joseph Conrad Twinem, Edward H. Perkins
Maine Collection
State Geologist's Report on the Geology of Maine 1930-1932
Joseph Conrad Twinem , State Geologist and Edward H. Perkins , Assistant Geologist
Second Series - Augusta 1932
Sections: Bibliography, Economic Geology, General Geology, Paleontology, Structural Geology
The Articulated Skeleton Of Titanotherium, Erwin H. Barbour
The Articulated Skeleton Of Titanotherium, Erwin H. Barbour
Bulletin of the University of Nebraska State Museum (1924–2023)
The skeleton of a titanotherium, stored since 1894, was installed in the west corridor of Morrill Hall, April 28, 1931. In the meantime the specimen has been visited by many citizens, women's clubs, and especially by delegations of school children, boy scouts, and like organizations, from various parts of the State and elsewhere. Repeated requests for a popular report on this particular specimen actuates the writing of this leaflet. Titanotheres were by far the largest creatures of Oligocene time in Nebraska. In point of size they are called gigantic, elephantine, and titanic. The titans of Greek mythology were giants, and …
The Scottsbluff Bison Quarry And Its Artifacts, Erwin Hinckley Barbour, C. Bertrand Schultz
The Scottsbluff Bison Quarry And Its Artifacts, Erwin Hinckley Barbour, C. Bertrand Schultz
Bulletin of the University of Nebraska State Museum (1924–2023)
The association of artifacts with extinct bison bones in a quarry near Grand Island, Hall County Nebraska,1 and from one in Custer County, Nebraska, have already been reported.2 In the meantime, continued search has been rewarded, and a large bed of fossil bison with associated flint implements found. The discovery, if not of actual consequence, at least adds something to the accumulating evidence that Pleistocene man in America may have been a reality.
Association Of Artifacts And Extinct Mammals In Nebraska, Bertrand Schultz
Association Of Artifacts And Extinct Mammals In Nebraska, Bertrand Schultz
Bulletin of the University of Nebraska State Museum (1924–2023)
During the past four years the Nebraska State Museum, under the directorship of Dr. Erwin Hinckley Barbour, has been making even more extensive palaeontological collections throughout Nebraska than heretofore. As work progresses, especially with fossil bison and mammoth, there is increasing evidence that man appeared in Nebraska much earlier than is generally believed. Two occurrences of artifacts associated with fossil bones will constitute the main theme of this paper.
The Mounted Skeleton Of Bison Occidentalis, And Associated Dart-Points, Erwin Hinckley Barbour, C. Bertrand Schultz
The Mounted Skeleton Of Bison Occidentalis, And Associated Dart-Points, Erwin Hinckley Barbour, C. Bertrand Schultz
Bulletin of the University of Nebraska State Museum (1924–2023)
A composite skeleton of Bison occidentalis was mounted and installed in its case on the lower floor of Morrill Hall, on April 22, 1932. The skeleton in itself is attractive because of its size and excellent preservation, and is rendered additionally interesting by two dart-points, one found under the scapula, and the other under the ribs.
A New Oreodont Slab, Erwin Hinckley Barbour, C. Bertrand Schultz
A New Oreodont Slab, Erwin Hinckley Barbour, C. Bertrand Schultz
Bulletin of the University of Nebraska State Museum (1924–2023)
A slab of pale, reddish-brown sandstone, exhibiting the articulated skeletons of two oreodonts, has been placed on display in the west corridor on the first floor of Morrill Hall. Apparently, a female and well-grown young one lay down together and perished, perhaps from disease, or from chilling winds. They must have been buried quickly, for all of the bones are present, are in perfect condition, and are in articulation, especially in the old one. In the adult the articulation is complete from the ungual phalanges of the two forefeet to the terminal caudal, even though in the figure the skeleton …
The Mandible Of Platybeldon Barnumbrowni, Erwin Hinckley Barbour
The Mandible Of Platybeldon Barnumbrowni, Erwin Hinckley Barbour
Bulletin of the University of Nebraska State Museum (1924–2023)
Platybelodon barnumbrowni was described originally as Torynobelodon barnumbrowni.1 The Nebraska State Museum was visited and this unique specimen studied by Dr. Henry Fairfield Osborn and Dr. Walter Granger, August seventeenth and eighteenth, nineteen hundred and thirty-two. It is the opinion of both that this specimen belongs properly to their Mongolian genus Platybelodon. With certain reservations the writer wishes to defer instantly to their judgment, which is based on unequalled experience. It is perfectly apparent that this form makes a close approach to the remarkable Platybelodons found by Granger and Andrews in the Gobi Desert of Mongolia, later figured and …
The Skull And Mandible Of Mastodon Moodiei, Erwin Hinckley Barbour
The Skull And Mandible Of Mastodon Moodiei, Erwin Hinckley Barbour
Bulletin of the University of Nebraska State Museum (1924–2023)
The mandible of the Milford mastodon, Mastodon moodiei, was figured and described in Bulletin 24, December, 1931. In the meantime, the fragments of both skull and mandible have been properly cleaned, put together, and mounted for exhibition. No essential parts of the skull or mandible are wanting or are seriously damaged.
The Articulated Skeleton Of Eubelodon Morrilli, Erwin Hinckley Barbour
The Articulated Skeleton Of Eubelodon Morrilli, Erwin Hinckley Barbour
Bulletin of the University of Nebraska State Museum (1924–2023)
The mounted sketleton of Eubelodon morrilli was installed in the west wall case of Elephant Hall December 31, 1931, and has attracted the attention and favorable comments of citizens and other guests. It should be explained that the case in which it is displayed is ten feet deep, sixteen feet high, and extends the length of the hall. Altogether it is a large and impressive mount which reflects credit upon its preparators, and is an important and instructive addition to the Morrill Palaeontological Collections. The pose is spirited and interesting, and the action is all that can be expected of …
Association Of An Arrow Point With Bison Occidentals In Nebraska, F. G. Meserve, Erwin H. Barbour
Association Of An Arrow Point With Bison Occidentals In Nebraska, F. G. Meserve, Erwin H. Barbour
Bulletin of the University of Nebraska State Museum (1924–2023)
Of late, anthropological literature relative to the association of man and extinct mammals, especially bison and mammoth, has received many contributions from various and widely separated sources. Naturally the question has arisen whether man's advent in America is somewhat earlier than has been generally admitted, or whether certain extinct animals have persisted longer than has been realized. The issue is one of such importance and interest that even minor contributions seem desirable. It is well understood by all that the evidence, when submitted, will be properly weighed, and that conservative judges may rule out much or all of the testimony. …
A Study Of The Colloid Obtained From Weathered Lignite, Cecil O. Lohn
A Study Of The Colloid Obtained From Weathered Lignite, Cecil O. Lohn
Theses and Dissertations
When Lignite is exposed to the action of weather it undergoes various changes, probably due to oxidation. Surface beds of lignite are often rejected by the miners as inferior coal, due to the weathered condition. But when this weathered lignite is treated with sodium hydroxide, and the resulting solution allowed to evaporate to dryness, there is left a hard, shiny substance very similar in appearance to hard coal. This dried product has been exploited under the name of Dakolite. When dispersed in water this product makes a very good wood stain.
Tests made on Dakolite show that it has colloidal …
Brachiopoda Of The Pennsylvanian System In Nebraska, C. O. Dunbar, G. E. Condra
Brachiopoda Of The Pennsylvanian System In Nebraska, C. O. Dunbar, G. E. Condra
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
The Paleontology And Stratigraphy Of The Magdalena Group Of Northern And Central New Mexico, Wallace A. Bisbee
The Paleontology And Stratigraphy Of The Magdalena Group Of Northern And Central New Mexico, Wallace A. Bisbee
Earth and Planetary Sciences ETDs
No abstract provided.
Ua66/8/3 Second Rocky Mountain Field Trip, Wku Geography & Geology
Ua66/8/3 Second Rocky Mountain Field Trip, Wku Geography & Geology
WKU Administration Documents
Report on the Second Rocky Mountain Field Trip taken by faculty and students of the WKU Geography & Geology department.
Preliminary Construction Of A Photo-Electric Cell Concentrator, Stanley S. Williams
Preliminary Construction Of A Photo-Electric Cell Concentrator, Stanley S. Williams
Bachelors Theses and Reports, 1928 - 1970
The separation of the valuable portion from the waste portion of an ore is an individual problem for every ore. However, the various methods for accomplishing this end, more or less classify themselves by the physical properties of the constituents of the ore. Most of the properties of minerals have been utilized in some way or other to affect the separation of the valuable from the invaluable parts. Practically nothing has been done so far with color and luster to attain this purpose.
It is believed that the photo—electric cell could also be used in concentrating a certain class of …
The American Mastodon With Mandibular Tusks, Erwin H. Barbour
The American Mastodon With Mandibular Tusks, Erwin H. Barbour
Bulletin of the University of Nebraska State Museum (1924–2023)
Mastodons and mammoths, represented by their relics, are so frequently exposed by shovel, plow, road grader, dredge, and rains, that they have become household words. They are plainly the commonest and best-known vertebrate fossils. They were fortuitously entombed, and are now accidently found. Their relics, though numerous, never represent the grand total that lived. Indeed, it was a rare individual that fell where circumstances favored rapid interment and consequent preservation; the grand majority fell in the open where their bones suffered rapid and complete decay. The American mastodon occupies a position between the long-jawed, long-skulled, four-tusked ancestor called Palaeomastodon, and …
The Environment Of The Prairie, J. E. Weaver, W. J. Himmel
The Environment Of The Prairie, J. E. Weaver, W. J. Himmel
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Paleontology Of The Upper Cretaceous Of Chaco Canyon, New Mexico, Richard Pickard Vann
Paleontology Of The Upper Cretaceous Of Chaco Canyon, New Mexico, Richard Pickard Vann
Earth and Planetary Sciences ETDs
It is the purpose of this paper to describe some Upper Cretaceous invertebrate fossils (including descriptions of an algal form, and some vertebrate teeth) collected by the writer in Chaco Canyon, New Mexico, and to give a brief summary of the physiography and stratigraphy of the region.
Age Relationships Of Ore Deposits Of Southwestern Montana (A Microscopic Study), Charles R. Trueworthy
Age Relationships Of Ore Deposits Of Southwestern Montana (A Microscopic Study), Charles R. Trueworthy
Bachelors Theses and Reports, 1928 - 1970
Although considerable work has been undertaken by some prominent geologists, the best known of which is that of Paul Billingsley and J. A. Grimes', in investigating the ore deposits of the Boulder Batholith and surrounding area, there has not been any complete microscopic investigation of these deposits, as a whole, published in the literature. With this in mind it was suggested to the writer by Professor Paul A. Schafer, of the Montana School of Mines, that a microscopic study of the ores of this region would be a worthwhile geologic problem.
It was thought that the mineral association and the …
A Preliminary Study Of The Separation Of The Copper Sulfides From Sphalerite And The Effect Of Certain Reagents On Some Of The Pure Copper Minerals In Synthetic Mixtures, Gailen T. Vandel
Bachelors Theses and Reports, 1928 - 1970
The problem of separating the copper sulfide minerals from sphalerite, in copper - zinc ores, has been a difficult one. This is largely due to the lack of adequate research and the small amount of data obtainable on the behavior of copper and zinc sulfide minerals in flotation circuits.
The Milford Mastodon, Mastodon Moodie I, Sp. Nov. A Preliminary Report, Erwin Hinckley Barbour
The Milford Mastodon, Mastodon Moodie I, Sp. Nov. A Preliminary Report, Erwin Hinckley Barbour
Bulletin of the University of Nebraska State Museum (1924–2023)
In developing the hydro-electric plant of the Iowa and Nebraska Light and Power Company, a number of dams were thrown across the Blue River and its branches. One of these, known as Dam No.7, was built across the West Blue, about nine miles southwest of Milford, Seward county, Nebraska. This dam raised the water well above the ordinary river level, and flooded fifteen or twenty acres of valley land. The impounded water soaked into, and washed against, the base of a twenty-foot bank of cross-bedded sand, until some time during the winter of 1931, a portion of the bank near …
The Musk-Oxen Of Nebraska, Erwin Hinckley Barbour
The Musk-Oxen Of Nebraska, Erwin Hinckley Barbour
Bulletin of the University of Nebraska State Museum (1924–2023)
The remains of no less than eight fossil musk-oxen are already known in Nebraska, of which one is preserved in the Museum at Hastings, Nebraska, and seven in the State Museum at Lincoln. This is a large number to be recorded in anyone state. As late as 1891 authors wrote that but two examples of musk-oxen were known in the United States, one from Kentucky, and one from Arkansas, if, indeed, they be valid species. Now that pioneer days are well behind this commonwealth, and that there is a growing sentiment for exploration and proper display of the State's resources, …
A New Amebelodont, Torynobelodon Barnumbrowni, Sp. Nov. A Preliminary Report, Erwin Hinckley Barbour
A New Amebelodont, Torynobelodon Barnumbrowni, Sp. Nov. A Preliminary Report, Erwin Hinckley Barbour
Bulletin of the University of Nebraska State Museum (1924–2023)
The subfamily of longirostrine mastodonts known as the Amebelodontinae have been so recently discovered and described that as yet they; are little known by the citizens of this state. They are most briefly and directly described as shovel-tusked mastodons. The first one found, namely Amebelodon fricki, was secured in April 1927, and was published June 1927. In the meantime, many other examples of Amebelodonts have been added to the Morrill Palaeontological Collections of the Nebraska State Museum. The exact number cannot be stated until the material shipped in from the field during the current season is unpacked, cleaned, and identified. …
Evidence Of Dinosaurs In Nebraska, Erwin Hinckley Barbour
Evidence Of Dinosaurs In Nebraska, Erwin Hinckley Barbour
Bulletin of the University of Nebraska State Museum (1924–2023)
Nebraska has long been a collecting ground famous for its fossil mammals, but as yet no dinosaurian bones have been reported, nor have they been expected. The distal end of a finely preserved femur, however, has recently been brought to light, supposedly occurring in position in the Dakota formation of eastern Nebraska. It was discovered, collected, and donated by Mr. J. B. White, (University of Nebraska, Law, class of 1899) on his farm two miles south of Decatur, in northeastern Burt County, near the Missouri River. It was found in undoubted Dakota sand associated with many leaf impressions. This is …
The Giant Beaver, Castoroides, And The Common Beaver, Castor, In Nebraska, Erwin Hinckley Barbour
The Giant Beaver, Castoroides, And The Common Beaver, Castor, In Nebraska, Erwin Hinckley Barbour
Bulletin of the University of Nebraska State Museum (1924–2023)
Respecting the giant beaver, Castoroides, in Nebraska, four occurrences can be reported. Of rodents in general the dawn. was in the early Eocene, at which time there were in existence certain squirrel-like members of the order. Rodents are a persistent group, and are among the smallest, most distinctive, most numerous and widely distributed orders of terrestrial mammals. No other order boasts of so many species, the number being between nine hundred and one thousand. In spite of wide divergencies and modifications adapting them to various modes of life, such as climbing, burrowing, swimming, flying, leaping, and running, there is remarkable …
A Morning's Consignment Of Proboscidean Freight, Erwin Hinckley Barbour
A Morning's Consignment Of Proboscidean Freight, Erwin Hinckley Barbour
Bulletin of the University of Nebraska State Museum (1924–2023)
In the accompanying cut the array of great tusks outlined through their rough crates may lack attractiveness, nevertheless the assemblage is quite out of the ordinary, and seems worth recording in bulletin form. In all museums, and like institutions, freight and express deliveries are matters of daily routine; however, the morning's freight shown in the cut is unique. Herein is represented the more showy portion of the proboscidean freight received at the Nebraska State Museum in a single consignment, in the field season of 1930. The other boxes of mammoth skulls, jaws, and bones, received at the same time, are …
Some Results Of Magnetometric Surveying In Missouri, John Gustave Grohskopf
Some Results Of Magnetometric Surveying In Missouri, John Gustave Grohskopf
Masters Theses
"This thesis describes the results of a series of magnetic surveys carried on in the state of Missouri. The financial assistance required for the work was granted in the form of a fellowship to the author by the Industrial Club of the Industrial Bureau of St. Louis; Mr. George S. Smith, Director. Since the progress of any industrial center is accelerated by the mineral resources contiguous to it, the Industrial Club believed that further research upon known and also undeveloped mineral deposits might result in the development of them. It was decided that geophysical methods of research might show greater …
The Geology And Petrography Of A Portion Of Marlboro And Brattleboro Townships, Windham County, Vermont, Elizabeth Putnam Richards
The Geology And Petrography Of A Portion Of Marlboro And Brattleboro Townships, Windham County, Vermont, Elizabeth Putnam Richards
Honors Papers
Location and area. The territory covered in this report is a roughly rectangular area of about fifty square miles. It is situated partly in Marlboro and partly in Brattleboro township, in Windham county, southeastern Vermont. It runs from 42° 50' to 42° 55' north latitude and from 72° 37' to 72° 47' west longitude. Geologically the region is a part of the Green Mountains while physiographically the area is in the New England Upland section.
Statement of the Problem and Methods. The origin, history and correlation of the country rock of the region is the particular problem with which this …
Geology And Acid Intrusions Of Marlboro Township, Vermont, Stanley Gordon Elder
Geology And Acid Intrusions Of Marlboro Township, Vermont, Stanley Gordon Elder
Honors Papers
It is the aim of this paper to examine the mineralization resulting from the intrusion of acid dikes and veins into the schists of Marlboro township, Vermont, and to give a brief account of the geology of the area.
The problem of mineralization in southern Vermont is one which has been treated very slightly and is one which is deserving of more study than it has received. This problem results from the presence of numerous acid igneous masses in all the formation of the region. Petrographic research in the igneous intrusions was done partially with the hope that the study …
Studies In The Distribution Of Orbitolina Walnutensis Carsey, Shirley Alfred Lynch
Studies In The Distribution Of Orbitolina Walnutensis Carsey, Shirley Alfred Lynch
Masters Theses
"This paper has shown the stratigraphic and geographic range of the foraminifer, Orbitolina walnutesis Carsey. Samples from sections in thirteen counties in north and north central Texas have been studied. Many geologists have previously studied these sections in detail, correlation them and published the results"--Summary and Conclusions, page 73.