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Articles 29071 - 29100 of 29946

Full-Text Articles in Geology

Detection Of Buried Basement Highs By Airphoto Drainage Pattern Analysis, Reynolds And Wayne Counties, Missouri, Papken Aram Zarzavatjian Jan 1958

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 …


The Basement Of North Dakota, Spurgeon C. Crosby Ii. Jan 1958

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.


Paragenesis Of The Minerals In The Einstein Vein Madison County, Missouri, Robert P. Stevens Jan 1958

Paragenesis Of The Minerals In The Einstein Vein Madison County, Missouri, Robert P. Stevens

Masters Theses

"Selection of the Problem: The mineralogical problem of determining the paragenetic sequence of minerals in the Einstein vein, Madison County, Missouri, was suggested by Dr. O. R. Grawe, who previously had supervised a thesis by Joel Pomerene dealing with the geology of the area. Although considerable attention has been given to the mineralization along the vein, a specific study of the paragenetic relations has not been made. Paragenesis has, however, been discussed by others in papers dealing with the geology of the area. Such a study is extremely important in the establishment of a hypothesis of origin, and hence, an …


Permeability Study Of Algal Reef Beds Within The Bonneterre Formation, National Mine, St. Francois, Missouri, Bobbie L. Perry Jan 1958

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 …


The Stratigraphy And Geologic History Of The Cannonball Formation (Paleocene), Gary O. Hall Jan 1958

The Stratigraphy And Geologic History Of The Cannonball Formation (Paleocene), Gary O. Hall

Theses and Dissertations

The purpose of this report is to describe the stratigraphy of the Cannonball formation in southwestern North Dakota, and to present a new geologic map of the formation in Oliver, McLean, Burleigh, and Emmons Counties, North Dakota.


Geology Of A Portion Of Prairie Township, Washington County, Arkansas, Kern C. Jackson, Ross H. Pohlo Jan 1958

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.


Foraminifera From Outcrops Of The Pierre Shale (Upper Cretaceous) Of North Dakota, Everett E. Wilson Jan 1958

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 …


Photograph Of Relief Model Map Of Nebraska, Conservation And Survey Division Jan 1958

Photograph Of Relief Model Map Of Nebraska, Conservation And Survey Division

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Groundwater Level (Decline & Rise) As Of December 1957., E. C. Reed Dec 1957

Nebraska Groundwater Level (Decline & Rise) As Of December 1957., E. C. Reed

Conservation and Survey Division: Faculty and Staff Publications

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 Nov 1957

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: Faculty and Staff Publications

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 Oct 1957

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 Jun 1957

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 Jun 1957

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 May 1957

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 May 1957

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 May 1957

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 May 1957

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.


The Worm Creek Quartzite Member Of The St. Charles Formation, Utah-Idaho, Anthon V. Haynie Jr. May 1957

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 …


Geology Of The East-Central Part Of The Malad Range, Idaho, Prapath Prammani May 1957

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 …


Maine Pegmatite Mines And Prospects And Associated Minerals, Maine Geological Survey Mar 1957

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


Medial Pleistocene Fossil Vertebrate Localities In Nebraska, C. Bertrand Schultz, Lloyd G. Tanner Jan 1957

Medial Pleistocene Fossil Vertebrate Localities In Nebraska, C. Bertrand Schultz, Lloyd G. Tanner

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

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 …


Gastropoda From The Pierre Shale (Upper Cretaceous) Of Emmons County, South-Central North Dakota, Alan M. Cvancara Jan 1957

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 …


A Geological Study Of The Irvine Ranch Area, Johnson And Campbell Counties, Wyoming, Gale E. Butterfield Jan 1957

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 …


Porosity-Permeability Characteristics Of Dedimentary Rocks, W. D. Lacabanne Jan 1957

Porosity-Permeability Characteristics Of Dedimentary Rocks, W. D. Lacabanne

Journal of the Minnesota Academy of Science

No abstract provided.


Log Of Test Holes Frenchman Creek Basin Nebraska, C. F. Creech Jan 1957

Log Of Test Holes Frenchman Creek Basin Nebraska, C. F. Creech

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Phosphoria Formation Of The Northeastern Big Horn Basin, Wyoming, William A. Beatty Jan 1957

The Phosphoria Formation Of The Northeastern Big Horn Basin, Wyoming, William A. Beatty

Masters Theses

"Purpose and Scope. — The Phosphoria formation of the northern Rocky Mountains of the United States has received considerable attention from geologists because of its important reserves of phosphate and petroleum. In the Big Horn Basin of Wyoming, however, still more work is needed to compile the information necessary for a complete understanding of the facies changes exhibited by this formation.

The purpose of this paper is two-fold: first to present a description of the lithology and the paleontology of the Phosphoria formation in the northeast part of the Big Horn Basin, and secondly to show the stratigraphic relationship of …


Northeastern Cherry And Western Keya Paha County Preliminary Ground Water Study 1957 (Gm-26): Reed, E.C. Conservation And Survey Division , Size 8.5" X 11"., E.C. Reed Jan 1957

Northeastern Cherry And Western Keya Paha County Preliminary Ground Water Study 1957 (Gm-26): Reed, E.C. Conservation And Survey Division , Size 8.5" X 11"., E.C. Reed

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Geology Of The Southern Half Of The Millerstown, Pennsylvania 15 Minute Topographic Quadrangle, George Calvert Robinson Jan 1957

Geology Of The Southern Half Of The Millerstown, Pennsylvania 15 Minute Topographic Quadrangle, George Calvert Robinson

Graduate Theses, Dissertations, and Problem Reports (ETD)

A detailed investigation of the geology of the southern one-half of the Millerstown, Pennsylvania 15 Minute Topographic Quandrangle was conducted during 1956-1957. This report of the work contains a description of the Silurian, Devonian, and Mississippian formations which crop out in the area. The complex folding and faulting of the sediments is outlined in a section on structural geology. A number of anticlines and synclines, not previously mapped, are described.

A geologic map and two structural cross sections with a scale of 1:24000 are included to illustrate the features described. This is the first geologic map of the area on …


Geology And Ground-Water Resources Of The Portales Valley Area, Roosevelt And Curry Counties, New Mexico, Sherman E. Galloway May 1956

Geology And Ground-Water Resources Of The Portales Valley Area, Roosevelt And Curry Counties, New Mexico, Sherman E. Galloway

Earth and Planetary Sciences ETDs

Since 1910, and particularly since the closing years of World War II, considerable development of the ground water occurring in the valley fill has been made for irrigation purposes. This increase in development has resulted in a progressive decline of the water levels in this area. The results of this study indicate that the water occurring in the valley fill is the only water of good chemical quality occurring in the Portales Valley that can be obtained in quantities that are sufficient for normal irrigation, municipal, industrial, stock, and domestic uses, and that if the present rate of ground water …


Geology Of The Rinconada Canyon Area, Valencia County, New Mexico., John Mohar Jr. May 1956

Geology Of The Rinconada Canyon Area, Valencia County, New Mexico., John Mohar Jr.

Earth and Planetary Sciences ETDs

Within this area are found two small domes superimposed upon the McCarty syncline. North dome, the larger of the two, is located at the head of Rinconada Canyon. South dome is located in the southern part of the area near the mouth of the canyon. Thus far the mineral resources of the area have been of little economic value. There are, however, large deposits of commercial uranium deposit at depth which cannot be disregarded.