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Articles 28741 - 28770 of 29715
Full-Text Articles in Physical Sciences and Mathematics
The Basement Of North Dakota, Spurgeon C. Crosby Ii.
The Basement Of North Dakota, Spurgeon C. Crosby Ii.
Theses and Dissertations
The purpose of this report is to study the basement rocks of North Dakota. The basement rocks of North Dakota may be divided into two categories. The eastern division comprises deeply weathered material and extends from the Red River westward for approximately thirty miles. The western division essentially comprising adamellite (more than 1/3 but less than 2/3 alkali feldspar and more than 10 percent quartz), extends from a north-south line thirty miles west of the Red River to the Montana border.
Geology Of A Portion Of Prairie Township, Washington County, Arkansas, Kern C. Jackson, Ross H. Pohlo
Geology Of A Portion Of Prairie Township, Washington County, Arkansas, Kern C. Jackson, Ross H. Pohlo
Journal of the Arkansas Academy of Science
No abstract provided.
Photograph Of Relief Model Map Of Nebraska, Conservation And Survey Division
Photograph Of Relief Model Map Of Nebraska, Conservation And Survey Division
Conservation and Survey Division
No abstract provided.
Total Number Of Irrigation Wells Located In Nebraska Counties As Of 1958
Total Number Of Irrigation Wells Located In Nebraska Counties As Of 1958
Conservation and Survey Division
No abstract provided.
Foraminifera From Outcrops Of The Pierre Shale (Upper Cretaceous) Of North Dakota, Everett E. Wilson
Foraminifera From Outcrops Of The Pierre Shale (Upper Cretaceous) Of North Dakota, Everett E. Wilson
Theses and Dissertations
In North Dakota the Pierre shale was deposited in all portions of the State except the southeastern corner, where it was either never deposited or removed by pre-Pleistocene erosion. In the western part of North Dakota the Pierre is overlain by later Cretaceous and Tertiary sediments, but to the east of the Missouri River, where it forms the bedrock, it is mantled by glacial drift. However, numerous exposures of the Pierre are present, generally in road cuts and river valleys of the southwestern and northeastern corners of the State. More scattered outcrops occur along Beaver Creek and the Missouri River …
Detection Of Buried Basement Highs By Airphoto Drainage Pattern Analysis, Reynolds And Wayne Counties, Missouri, Papken Aram Zarzavatjian
Detection Of Buried Basement Highs By Airphoto Drainage Pattern Analysis, Reynolds And Wayne Counties, Missouri, Papken Aram Zarzavatjian
Masters Theses
"Purpose and Scope: The purpose of this study is to determine if it is possible to detect buried Precambrian igneous hills in Wayne County and the larger part of Reynolds County in southeast Missouri by the use of aerial photo drainage pattern analysis.
The St. Francis Mountains are located in southeast Missouri. They form a part of the Precambrian basement complex, and have been exposed at the surface by the erosion of the lower Paleozoic sediments which covered them. Some of the hills which make up the St. Francis Mountains are exposed to a great degree, while others still have …
Permeability Study Of Algal Reef Beds Within The Bonneterre Formation, National Mine, St. Francois, Missouri, Bobbie L. Perry
Permeability Study Of Algal Reef Beds Within The Bonneterre Formation, National Mine, St. Francois, Missouri, Bobbie L. Perry
Masters Theses
"The Missouri "Lead Belt" comprises approximately 50 square miles, centering around the town of Flat River, in St. Francois County. Missouri. This district has been producing lead for more than 200 years, the total production being at least 8,000,000 tons of lead, valued at more than $1,000,000,000. For many years, the annual production of the district has been at least one-fourth of the total production in the United States.
An excellent description of the geology of this area was published recently by Ohle and Brown in 1954.
The ore consists principally of galena which is disseminated within the Bonneterre formation …
Nebraska Groundwater Level (Decline & Rise) As Of December 1957., E. C. Reed
Nebraska Groundwater Level (Decline & Rise) As Of December 1957., E. C. Reed
Conservation and Survey Division
No abstract provided.
Preliminary Estimate Of The Underflow Across The South Dakota-Nebraska State Line In The Niobrara River And Ponca Creek Drainage Basins, E. C. Reed, C. F. Keech
Preliminary Estimate Of The Underflow Across The South Dakota-Nebraska State Line In The Niobrara River And Ponca Creek Drainage Basins, E. C. Reed, C. F. Keech
Conservation and Survey Division
The purpose of this paper is to estimate the amount of ground water flowing across the South Dakota-Nebraska State line within the Niobrara River basin, including the Ponca Creek basin. The study was made at the request of the Niobrara River Compact Commission. The estimates fiven in the paper are preliminary and subject to revision.
The Mineralogy And Paragenesis Of The Lone Star Deposit, Santa Fe County, New Mexico, Lawrence K. Lustig
The Mineralogy And Paragenesis Of The Lone Star Deposit, Santa Fe County, New Mexico, Lawrence K. Lustig
Earth and Planetary Sciences ETDs
The Lone Star deposit is located in La Bajada Canyon in western Santa Fe County, New Mexico. The exposed sedimentary rocks of the area range in age from the Cretaceous to recent. Four unconformities are present which are the result of erosional levels established during the Tertiary. The host rock of the deposit is the Cieneguilla liburgite formation. The Cieneguilla consists mainly of thin embedded limburgite flows and conglomerate of Miocene age. The Lone Star deposit lies in this conglomerate at a depth of approximately 150 feet from the top of the Cieneguilla.
A Study Of The Charles-Mission Canyon Contact, David H. Dahlem
A Study Of The Charles-Mission Canyon Contact, David H. Dahlem
Bachelors Theses and Reports, 1928 - 1970
This study is an attempt to define criteria for picking the Charles-Mission Canyon contact from well-cuttings logs, electric logs and radio-active logs; and all findings are discussed, whether positive or negative. Correlation by electric log was successful from the Cut Bank area to the Cedar Creek anticline but sample logs from the same wells do not agree. The conclusions reached is the point to the unreliability of the sample logs based on well-outtings data.
A Study Of The Geology Of The Mount Humbug Area, Highland Mountains, Montana, Robert Grant Garwood, Charles Wray Hanna
A Study Of The Geology Of The Mount Humbug Area, Highland Mountains, Montana, Robert Grant Garwood, Charles Wray Hanna
Bachelors Theses and Reports, 1928 - 1970
This report presents a study of the phosphate bed and the associated sediments in the Mount Humbug area which embraces the southern half of T. 1 N., R. & W., and the northern half of T. 1 S., R. 9 W., and the northeast quarter of T. 1 S., R. 9 W. The object of this investigation was to examine and identify the metamorphosed sediments, the surrounding igneous rocks, and the terrace and fluvial deposits of the area.
The Geology Of The Tecolote Hills Area, Lincoln County, New Mexico, Donald E. Rawson
The Geology Of The Tecolote Hills Area, Lincoln County, New Mexico, Donald E. Rawson
Earth and Planetary Sciences ETDs
The Tecolote Hills in the north-central Lincoln County, New Mexico, consist of Permian, Triassic, and Cretaceous sedimentary strata intruded by early Tertiary (?) sills, dikes, and laccoliths. A partial section of the Permian Yeso formation, measured thickness 380 feet, is exposed and is overlain conformably by the Glorieta sandstone member of Permian San Andres formation. This sandstone thins, at least locally, to the south and intertongues with San Andres limestone. The maximum thickness of the Glorieta sandstone is about 215 feet. It is overlain by a 300-foot thickness of San Andres rocks, further divisible into a lower limestone member and …
Insoluble Residue Study Of Pennsylvanian Strata Exposed In San Juan Canyon, San Juan County, Utah, James A. Smith
Insoluble Residue Study Of Pennsylvanian Strata Exposed In San Juan Canyon, San Juan County, Utah, James A. Smith
Earth and Planetary Sciences ETDs
The purpose o! this investigation is to correlate strata in the Pennsylvanian rocks exposed in the canyon of the San Juan River from Raplee anticline to Slickhorn Gulch through a binocular study cf rock samples and their insoluble residues. Three days were spent in field reconnaissance. Laboratory study included preparation of a photo geological map and a detailed jnsoluble residue cross section of the area investigated.
A Sandstone Channel In The Mesaverde Group Near Cuba, New Mexico, Marshall E. Parry
A Sandstone Channel In The Mesaverde Group Near Cuba, New Mexico, Marshall E. Parry
Earth and Planetary Sciences ETDs
This work was undertaken to study the distribution, trends, relationships and origin of certain sandstone lentils in the Cliff House formation and the Mesaverde group.
Correlation Of Reef Calcarenites Of The Pennsylvanian Paradox Formation, San Juan County, Utah, Jack Jordan
Correlation Of Reef Calcarenites Of The Pennsylvanian Paradox Formation, San Juan County, Utah, Jack Jordan
Earth and Planetary Sciences ETDs
This thesis is a summation of lithologic analyses of three stratigraphic sections: the Danvers 1-X Harris-Federal test, the Honaker Trail locality, and the Raplee locality in San Juan Canyon, San Juan County, Utah (FIg. 1) In these localities, the Paradox Formation as defined by Wengerd and Strickland (1954, p.2169) has been studied, inasmuch as the formation is known to contain limestone bioherms ("reefs") (Wengerd, 1951) in conjunction with biostromal strata.
Geology Of The East-Central Part Of The Malad Range, Idaho, Prapath Prammani
Geology Of The East-Central Part Of The Malad Range, Idaho, Prapath Prammani
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
During recent years geologic investigations have been made in various parts of northern Utah and southern Idaho. In the Cache Valley area. the Bear River Range which bounds the east side of the valley has been studied and mapped. On the west side of the valley, the Wellsville Mountain and the southern part of Malad Range have also been studied. Still, little is known about the east-central part of the Malad Range. The study of this area will give additional information to the over-all picture of the geology of the region. The purpose of this thesis is threefold. The first …
The Worm Creek Quartzite Member Of The St. Charles Formation, Utah-Idaho, Anthon V. Haynie Jr.
The Worm Creek Quartzite Member Of The St. Charles Formation, Utah-Idaho, Anthon V. Haynie Jr.
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This report presents the results of a stratigraphic study of the Worm Creek quartzite, the basal member of the St. Charles formation of Upper Cambrian age. The member is present in the Bear River Range, the Malad Range, and the Promontory Range of Northern Utah and southeastern Idaho. The Worm Creek quartzite was differentiated as the basal unit of the St. Charles formation by Richardson (1913) and named for its occurrence in Worm Creek Canyon in the Bear River Range, Bear Lake County, Idaho.
A stratigraphic investigation of the Worm Creek quartzite, including thickness and lithologic changes, was made. Through …
Maine Pegmatite Mines And Prospects And Associated Minerals, Maine Geological Survey
Maine Pegmatite Mines And Prospects And Associated Minerals, Maine Geological Survey
Maine Collection
Maine Pegmatite Mines and Prospects and Associated Minerals
Minerals Resources Index No.1 - Maine Geological Survey
Department of Development of Industry and Commerce, Augusta, Maine (March 1, 1957).
Contents: Introduction / Acknowledgments / Explanatory Considerations / Selected Bibliography / Pegmatite Mines and Prospects - Alphabetical Index / Pegmatite Mines and Prospects - County-Township Index / Pegmatite Mines and Prospects - Map Index.
Also Includes: Southwestern Maine - Pegmatite Localities and Access Highways / Index Map Showing Mining Districts and Detailed Plate Locations
Definition Oder Erlauterung Einiger Wichtiger Begriffe Zur Granitfrage, Felix Ronner
Definition Oder Erlauterung Einiger Wichtiger Begriffe Zur Granitfrage, Felix Ronner
Bulletin of the Mineral Research and Exploration
No abstract provided.
Atom Enerji̇si̇ Ham Maddeleri̇, Yusuf Zengi̇n
Atom Enerji̇si̇ Ham Maddeleri̇, Yusuf Zengi̇n
Bulletin of the Mineral Research and Exploration
No abstract provided.
Yeni̇ Neşri̇yat, - -
Yeni̇ Neşri̇yat, - -
Bulletin of the Mineral Research and Exploration
No abstract provided.
A Large Loss Of Turki̇sh Oi̇l Orgy, Kemal Lokman
A Large Loss Of Turki̇sh Oi̇l Orgy, Kemal Lokman
Bulletin of the Mineral Research and Exploration
No abstract provided.
Publications Of The Mineral Research And Exploration Institute Of Turkey, - -
Publications Of The Mineral Research And Exploration Institute Of Turkey, - -
Bulletin of the Mineral Research and Exploration
No abstract provided.
Medial Pleistocene Fossil Vertebrate Localities In Nebraska, C. Bertrand Schultz, Lloyd G. Tanner
Medial Pleistocene Fossil Vertebrate Localities In Nebraska, C. Bertrand Schultz, Lloyd G. Tanner
Bulletin of the University of Nebraska State Museum
The accurate geologic dating of Pleistocene vertebrate localities which occur outside the glaciated regions has always been difficult. Several new fossil localities in Nebraska now provide data for a better understanding of the paleoecology and faunal evidence of the medial Pleistocene of the Great Plains region.
A fossil quarry, containing the remains of both vertebrates and invertebrates, has been discovered in south-central Nebraska (11/2 miles south and west of Angus in Nuckolls County). The fossils are preserved in Sappa silts in a lime concentration zone (C horizon) of a Yarmouth paleosol. The calcium carbonate appears to have been responsible for …
Porosity-Permeability Characteristics Of Dedimentary Rocks, W. D. Lacabanne
Porosity-Permeability Characteristics Of Dedimentary Rocks, W. D. Lacabanne
Journal of the Minnesota Academy of Science
No abstract provided.
A Geological Study Of The Irvine Ranch Area, Johnson And Campbell Counties, Wyoming, Gale E. Butterfield
A Geological Study Of The Irvine Ranch Area, Johnson And Campbell Counties, Wyoming, Gale E. Butterfield
Masters Theses
"The discovery of uranium in the Powder River Basin, Wyoming, by the U. S. Geological Survey in 1952 has lead to an extensive exploration program throughout the region by both private and governmental agencies. This report is a geological study of an area in the southwestern part of the basin.
Geological and radiometric mapping carried out as a part of this report indicated several areas of uranium occurrence. Some of these occurrences warrant tests by drilling.
Mineralogical and petrographic study has shown the principal uranium minerals to be carnotite and metatyuyamunite. The mineralization occurs in arkosic sandstones. Assays of the …
Gastropoda From The Pierre Shale (Upper Cretaceous) Of Emmons County, South-Central North Dakota, Alan M. Cvancara
Gastropoda From The Pierre Shale (Upper Cretaceous) Of Emmons County, South-Central North Dakota, Alan M. Cvancara
Theses and Dissertations
Fossil gastropods were studied from the upper part of the Pierre shale (Upper Cretaceous) in Emmons County, south-central North Dakota. This primary purpose of this study was to figure all gastropods found and bring the nomenclature of up to date. Secondly, an attempt was made to determine whether these fossil gastropods could be used in defining the contact between the Pierre shale and overlying Fox Hills sandstone.
Little paleontological work has been done on Pierre gastropods in North Dakota. Identification previously made seem to have been done somewhat hurriedly from Meek (1876) with little regard to modernizing the nomenclature.
These …
Log Of Test Holes Frenchman Creek Basin Nebraska, C. F. Creech
Log Of Test Holes Frenchman Creek Basin Nebraska, C. F. Creech
Conservation and Survey Division
No abstract provided.