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Articles 1 - 30 of 39
Full-Text Articles in Geology
Basic-Data Report York County, Nebraska, C.F. Keech
Basic-Data Report York County, Nebraska, C.F. Keech
Conservation and Survey Division
No abstract provided.
Nebraska Soils, John A. Elder
Beach Erosion Control Study On Duval County, Fla, U.S. Army Engineer District, Jacksonville Corps Of Engineers
Beach Erosion Control Study On Duval County, Fla, U.S. Army Engineer District, Jacksonville Corps Of Engineers
Waterways and wildlife
The purpose of this study was to define the beach erosion and the hurricane-induced flooding problems in Duval County, to determine the most economical methods of alleviating those problems, and to determine the division of costs between the Federal Government and local interests .
Nebraska Groundwater Level Map (Decline & Rise) Between Fall 1954 And Fall 1964
Nebraska Groundwater Level Map (Decline & Rise) Between Fall 1954 And Fall 1964
Conservation and Survey Division
No abstract provided.
Ground-Water Appraisal Of The Meadow Valley Area, Lincoln And Clark Counties, Nevada, F. Eugene Rush
Ground-Water Appraisal Of The Meadow Valley Area, Lincoln And Clark Counties, Nevada, F. Eugene Rush
Publications (WR)
This report, the 27th in the series of reconnaissance ground-water studies which were initiated following authorization by the I960 Legislature, gives the results of a study of the Meadow Valley area. This area includes eight valleys in southeastern Nevada - - Patterson, Spring, Eagle, Dry, Rose, Panaca, Clover, and Lower Meadow Valley - - all part of the Colorado River drainage system.
This study was made and report prepared by F. Eugene Rush, Geologist for the U. S. Geological Survey.
These reconnaissance ground-water resources surveys make available pertinent information of great and immediate value to many State and Federal agencies. …
Basic-Data Report Saline County, Nebraska, Philip A. Emery
Basic-Data Report Saline County, Nebraska, Philip A. Emery
Conservation and Survey Division
No abstract provided.
Paleoecology Of Pseudozaphentoides Verticillatus (Barbour) In The Plattsmouth Limestone (Pennsylvanian), Robert Francis Diffendal Jr.
Paleoecology Of Pseudozaphentoides Verticillatus (Barbour) In The Plattsmouth Limestone (Pennsylvanian), Robert Francis Diffendal Jr.
Open Access Master's Theses (through 2010)
The purpose of this paper is to (1) delineate precisely the exact areal distribution and stratigraphic position within the Plattsmouth limestone member of any occurrence of Pseudozaphrentoides verticillatus (Barbour) and (2) to study the abiotic and biotic aspects of the Plattsmouth limestone in order to offer some inferences as to the paleoecological significance of these occurrences.
The Plattsmouth limestone in Nebraska is exposed in numerous quarries along the sides of the Weeping Water valley and along the Missouri River bluffs from Plattsmouth, Nebraska south to the Queen Hill quarry. Within the Plattsmouth, corals rapidly diminish in number away from the …
On The Solar Magnetic Field In Inter-Planetary Space, Jacqueline H. Hill
On The Solar Magnetic Field In Inter-Planetary Space, Jacqueline H. Hill
Earth and Planetary Sciences ETDs
The purpose of this thesis is to determine, experimentally and theoretically, an axially symmetric current distribution which would simulate the currents believed to flow in interplanetary space around the sun. The general magnetic field of the sun is assumed to originate as a dipole field which induces currents in the plasma of the solar atmosphere. The dipole field is in turn modified by the induced currents. This phenomenon is often described in terms or a diamagnetism of the plasma. In the limiting case, this diamagnetism would almost completely prevent the inducing field from penetrating the plasma.
The Geology Of The Northern And Eastern Parts Of The Ladron Mountains, Socorro County, New Mexico., Bruce A. Black
The Geology Of The Northern And Eastern Parts Of The Ladron Mountains, Socorro County, New Mexico., Bruce A. Black
Earth and Planetary Sciences ETDs
The Laron Mountains are & westward-tilted fault block and an important western bounding structure of the Rio Grande depression in the Albuquerque-Belen basin. The main massif is a complex of both igneous and metamorphic Precambrian rocks. It consists of a thick sequence of steeply east-dipping quartzite & and schists which are predominantly a product of low- to medium- grade regional Precambrian metamorphism. Granitic gneiss is ptygmatically folded with abundant schist remnant in a large area on the eastern flank of the mountains and represents an ultrametamorphic product of anatexis. All metamorphic rocks have been invaded by two later Precambrian granites. …
Geomorphic Features And History Of The Lower Part Of Logan Canyon, Utah, Edmund J. Williams
Geomorphic Features And History Of The Lower Part Of Logan Canyon, Utah, Edmund J. Williams
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Logan Canyon is located east of Logan, Utah, in the Bear River Range. The lower part of Logan Canyon is considered that section of the canyon from its mouth upstream to Tony Grove Canyon, a distance of 22 miles1, Figure 1. Some tributary canyons of the lower part of Logan Canyon have been included in this investigation because of their relationship to Logan Canyon. Grassy Flat Canyon, a south tributary of Logan Canyon 4.4 miles from Logan, exhibits several geomorphic features related to the geology of Logan Canyon. Because of its extensive use and close association with Logan …
Geology Of The Southwestern Part Of The Randolph Quadrangle, Utah-Wyoming, Steven C. Hansen
Geology Of The Southwestern Part Of The Randolph Quadrangle, Utah-Wyoming, Steven C. Hansen
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
A detailed study of the southwestern part of the Randolph quadrangle was undertaken in view of the fact that Richardson (1941) mapped a large area of undifferentiated Ordovician rock. Therefore, the purposes of this investigation are: (1) to prepare a more detailed geologic map of the southwestern part of the Randolph quadrangle (Plate 1), (2) to describe the structure, stratigraphy, and geologic history of the area, and (3) to relate the geology to adjacent areas.
Ankara Şehri̇nde Hava Ki̇rlenmesi̇, Fikret Bayri
Ankara Şehri̇nde Hava Ki̇rlenmesi̇, Fikret Bayri
Bulletin of the Mineral Research and Exploration
No abstract provided.
Le Volcanisme Quaternaire De La Region D'Acigöl (Nevşehi̇r), Giampaolo Sassano
Le Volcanisme Quaternaire De La Region D'Acigöl (Nevşehi̇r), Giampaolo Sassano
Bulletin of the Mineral Research and Exploration
No abstract provided.
Water Levels In Observation Wells In Nebraska, 1963, Philip A. Emery, Mildred M. Malhoit
Water Levels In Observation Wells In Nebraska, 1963, Philip A. Emery, Mildred M. Malhoit
Conservation and Survey Division
No abstract provided.
The Economics Of Nuclear Power, Basil Brown
The Economics Of Nuclear Power, Basil Brown
Bulletin of the Mineral Research and Exploration
No abstract provided.
A Review Of Permian And Mesozoic Formations Exposed Near The Turkey/Iraq Border At Harbol *, Gernot C. Schmidt
A Review Of Permian And Mesozoic Formations Exposed Near The Turkey/Iraq Border At Harbol *, Gernot C. Schmidt
Bulletin of the Mineral Research and Exploration
No abstract provided.
General Geology Of The Area Defined By The Polygone Balaban-Yazihan-Kurşunlu-Levent (Vi̇layet Malatya), Tamer Ayan, Cavit Bulut
General Geology Of The Area Defined By The Polygone Balaban-Yazihan-Kurşunlu-Levent (Vi̇layet Malatya), Tamer Ayan, Cavit Bulut
Bulletin of the Mineral Research and Exploration
No abstract provided.
Zur Geologie Des Kelki̇t Çay - Oberlaufs Südwestlich Von Şi̇ran (Nordostanatolien), Karl Nebert
Zur Geologie Des Kelki̇t Çay - Oberlaufs Südwestlich Von Şi̇ran (Nordostanatolien), Karl Nebert
Bulletin of the Mineral Research and Exploration
No abstract provided.
Geology Of The Beypazari - Nallihan - Seben Region, Adnan Kalafatçioğlu, Hayri Uysalli
Geology Of The Beypazari - Nallihan - Seben Region, Adnan Kalafatçioğlu, Hayri Uysalli
Bulletin of the Mineral Research and Exploration
No abstract provided.
Slope Deposits Of The Pennsylvanian Haymond Formation, Marathon Region, Texas, Walter E. Dean Jr.
Slope Deposits Of The Pennsylvanian Haymond Formation, Marathon Region, Texas, Walter E. Dean Jr.
Earth and Planetary Sciences ETDs
The Haymond Formation of the Marathon basin, Texas consists mainly of a sequence of more than 12,000 siltstone-shale couplets which, combined with the similar couplets of the older Tesnus Formation, form a sequence of "flysch" sediments more than 10,000 feet thick deposited on the eastern slope of the subsiding Llanoria geosyncline. The Haymond Formation contains no diagnostic fossils; its age is known only as Lower Pennsylvanian, probably Atokan.
New Lentil In Upper Fayetteville Formation, John D. Taylor
New Lentil In Upper Fayetteville Formation, John D. Taylor
Journal of the Arkansas Academy of Science
No abstract provided.
Prodromus Of American Bees Of The Genus Andrena (Hymenoptera, Apoidea), Wallace E. Laberge
Prodromus Of American Bees Of The Genus Andrena (Hymenoptera, Apoidea), Wallace E. Laberge
Bulletin of the University of Nebraska State Museum
Keys to the females and males and diagnoses of the American subgenera of the genus Andrena are presented in this paper. Previously described subgenera recognized in this work are as follows: Callandrena Cockerell, Scaphandrena Lanham, Plastandrena Hedicke, Parandrena Robertson, Dactylandrena Viereck, Andrena Fabricius, Iomelissa Robertson, Oligandrena Lanham, Hesperandrena Timberlake, Micrandrena Ashmead, Gonandrena Viereck, Opandrena Robertson, Cnemidandrena Hedicke, Simandrena Perez, Thysandrena Lanham, Taeniandrena Hedicke, Ptilandrena Robertson, Trachandrena Robertson, Xanthandrena Lanham, Diandrena Cockerell, Leucandrena Hedicke, Melandrena Perez, Gymnandrena Hedicke, Scoliandrena Lanham, Onagrandrena Linsley and MacSwain. The following five new subgenera are described: Eremandrena, Larandrena, Tylandrena, Geandrena, Chaulandrena.
New Species Of Proctophyllodes From Bulgaria (Sarcoptiformes, Analgoidea), Warren T. Atyeo, I. D. Vassilev
New Species Of Proctophyllodes From Bulgaria (Sarcoptiformes, Analgoidea), Warren T. Atyeo, I. D. Vassilev
Bulletin of the University of Nebraska State Museum
Two new species of feather mites are described: Proctophyllodes tenericaulus from Turdus viscivorus L. (Turdidae) and Galerida cristata (L.) (Alaudidae) and Proctophyllodes emberizae from Emberiza melanocephala Scopoli and E. hortulana (L.) (Fringillidae).
Variation In Perthitic Microcline From A Zoned Pegmatite, Terry E. Tullis
Variation In Perthitic Microcline From A Zoned Pegmatite, Terry E. Tullis
Journal of the Minnesota Academy of Science
Quantitative microscopic and chemical anaylses of 12 specimens of microcline, most of them perthitic, from the zoned Hugo pegmatite in the Black Hills near Keystone, South Dakota, have yielded data that can be used to estimate the temperatures of crystallization at successive stages in the formation of the pegmatite. The determined temperatures of crystallization range from 565°C in zone 3a, near the margin of the pegmatite, to 280°C in zone 7, the core.
A Review Of The Mites Of The Family Pseudocheylidae Oudemans, 1909 (Acarina, Prostigmata), Edward W. Baker, Warren T. Atyeo
A Review Of The Mites Of The Family Pseudocheylidae Oudemans, 1909 (Acarina, Prostigmata), Edward W. Baker, Warren T. Atyeo
Bulletin of the University of Nebraska State Museum
Four genera and ten species are included; these are: Pseudocheylus biscalattts Ber1ese, 1888, P. americanus (Ewing), 1909, Stigmocheylus brevisetus Berlese, 1910, Anoplocheylus europaeus (Berlese), 1910, A. clavatus, n. sp., A. aegypticus, n. sp., A. protea (Womersley), 1935, Neocheylus natalensis Tragardh, 1906, N. nidcolus Lawrence, 1954, and N. collis, n. sp.
Tarsocheylidae, A New Family Of Prostigmatic Mites (Acarina), Warren T. Atyeo, Edward W. Baker
Tarsocheylidae, A New Family Of Prostigmatic Mites (Acarina), Warren T. Atyeo, Edward W. Baker
Bulletin of the University of Nebraska State Museum
The new family is based on two genera, Tarsocheylus Berlese, 1904 and Hoplocheylus, new genus. The species included are: Tarsocheylus paradoxus Berlese, 1904, Hoplocheylus atomarius (Berlese), 1913, H. johnstoni, n. sp., H. aethiopicus (Cooreman), 1951, H. longispinus, n. sp., and H. cliscalis, n. sp.
The Physical Limnology And Sedimentology Of Miller Lake, Martin River Glacier, South-Central Alaska, Edward Callender
The Physical Limnology And Sedimentology Of Miller Lake, Martin River Glacier, South-Central Alaska, Edward Callender
Theses and Dissertations
Miller Lake is an ice-walled lake located on the terminus of the Martin River Glacier, south-central Alaska. It has an area of 1.36 km2 and a mean depth of 25 meters. The lake basin was formed by the coalescence of several ice sinkholes and is characterized by extremely uneven bottom topography.
Analysis of detailed thermal data obtained during the summer of 1963 indicates that the lake is never permanently thermally stratified but does develop some stratification during periods of warm, calm weather. This stratification is easily destroyed by stormy weather. Miller Lake is classified as a subpolar lake due …
The Origin Of The Bedded Arkansas Barite Deposits (With Special Reference To The Genetic Value Of Sedimentary Features In The Ore), Richard A. Zimmermann
The Origin Of The Bedded Arkansas Barite Deposits (With Special Reference To The Genetic Value Of Sedimentary Features In The Ore), Richard A. Zimmermann
Doctoral Dissertations
"The objective of this study has been to determine the geometric and mineralogic relationships existing between the barite and related sediments in the Stanley Shale in Arkansas and also to establish geometric, mineralogic, petrographic, and geochemical criteria for the interpretation of the origin of the barite and associated minerals. In addition, comparisons with German deposits have been made"--Introduction, Objective and Outline of Study, page [1].
Stratigraphy Sedimentation And Petroleum Possibilities Of The Middle Ordovician (Kimmswick-Galena) Rocks Of Missouri, Illinois And Iowa, Krishna Kant Misra
Stratigraphy Sedimentation And Petroleum Possibilities Of The Middle Ordovician (Kimmswick-Galena) Rocks Of Missouri, Illinois And Iowa, Krishna Kant Misra
Doctoral Dissertations
"Detailed surface and subsurface studies of the Kimmswick Limestone and the Galena Formation of Middle Ordovician age in eastern Missouri, western Illinois, and southeastern Iowa were conducted in order to examine their stratigraphic relations, geological history, environment of deposition, and petroleum possibilities.
The main objective of this study was to seek a stratigraphic subdivision of the Kimmswick Limestone in Missouri, based on its gross lithology and thin section study, and its correlation with the Galena Formation in Illinois and Iowa. As a result of this study, based on the examination of twelve surface sections and 92 thin sections a three-fold …
Dimension Stone In Arkansas, Charles G. Stone, William J. Crouch
Dimension Stone In Arkansas, Charles G. Stone, William J. Crouch
Journal of the Arkansas Academy of Science
No abstract provided.