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Mineral Deposits Of The Granite Gap Area, Hidalgo County, New Mexico, David N. Cargo

Earth and Planetary Sciences ETDs

The Granite Gap area lies in the central part of the Peloncillo Mountains about 28 miles southwest of Lordsburg, New Mexico. Ores of lead, zinc, silver, and tungsten from four separate deposits have been mined there during the past seventy years.

Pennsylvanian Spores From The Sandia Formation Santa Fe County, New Mexico, Thomas L. Carten

Earth and Planetary Sciences ETDs

No abstract provided.

Petrology Of The Tijeras Greenstone, Bernallio County, New Mexico, John J. Bruns

Earth and Planetary Sciences ETDs

The Precambrian metamorphosis rocks of the Tijeras Canyon area crop out along a five-mile, northeast-trending belt, which lies approximately five miles east of the Sandia Mountains front, in north-central New Mexico. The sequence, to the east, is overlain uncomfortably by Pennsylvanian Madera limestone, while the trace of the Tijeras fault marks the western side.

The Geology Of South Fork Thrust And Subsurface Geology Of The Belknap Ranch, Park County, Wyoming, James L. Deurmyer

Earth and Planetary Sciences ETDs

The segment of the South Fork thrust in the Belknap ranch area contains rocks representative of the Upper Jurassic, Lower Cretaceous and Upper Cretaceous. The thrust plate occupies 75 percent of the mapped area. Approximately 3,500 feet of predominantly marine rocks comprise the detachment thrust and about 15 percent of the exposed rocks of the thrust plate is sandstone and conglomerate. All the rock units present in the thrust plate crop out beyond the edge of the over-riding mass except the Sundance and Morrison formations. Approximately 4,600 feet of geologic section is exposed of drilled in the mapped area. The …

Lithogenesis Of The Pennsylvanian Madera Formation Of Palomas Peak, Sandia Mountains, New Mexico., Ronald D. Perkins

Earth and Planetary Sciences ETDs

The Pennsylvanian Madera formation of Palomas Peak in the Sandia Mountains of central New Mexico is a sequence of marine limestone and minor sandstone that ranges in age from Desmoinesian to Virgilian. The limestone is predominantly clastic or bioclastic and the sandstone is arkosic. Lithologic and paleontologic evidence suggests an epineritic to infraneritic environment on a gently subsiding shelf during deposition of the Madera Sediments.

Rhythmic deposition at Palomas Peak is evidenced by alternating clastic and bioclastic limestones which may have resulted from: (1) eustatic changes in sea level, (2) tectonic fluctuations in the downwarping of the shelf, or (3) …

The Identification Of Montana Clays By X-Ray Analysis, David Stephen Malyevac

Bachelors Theses and Reports, 1928 - 1970

The purpose of this study is to identify the various Montana clay minerals by means of X-ray diffraction. The ultimate aim of this investigation is to identify the different clay mixtures through an analysis of their respective diffraction patterns, and diffraction patterns obtained after various chemical and thermal treatments.

Geology Of The Upper Middle Creek Area Huerfano County, Colorado, J. H. Copeland

Open Access Master's Theses (through 2010)

The Sangre de Cristo Mountains of Colorado and New Mexico are, geologically speaking, relatively unknown. The equivocal nature of our knowledge of the range was a primary reason for studying a portion of it in some detail. Most of the previous studies have been concerned with the northern part of the range in Colorado, in the general area between Salida and La Veta Pass. This work has indicated that the complicated structure which characterizes the northern part of the range becomes simpler to the south. Therefore, a second objective of the current study has been to test this hypothesis. Thirdly, …

Water Levels In Observation Wells In Nebraska, 1958, C. F. Keech

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Surficial Geology Of Bear Lake Valley, Utah, Allen D. Willard

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Bear Lake Valley is located in southeastern Idaho and northeastern Utah. It is an elongate valley extending from the vicinity of Laketown, Utah, in the Randolph quadrangle, to the vicinity of Georgetown, Idaho, in the Montpelier quadrangle. The southern part of the valley is occupied by Bear Lake. The essentially straight-sided valley is bounded on the northeast by the Preuss Range, on the southeast by the Bear Lake Plateau, and on the west by the Bear River Range.

Bear River, rising in the Uinta Mountains to the south, and skirting the Wyoming Basin as it swings from Wyoming into Utah …

Geologic And Ground-Water Reconnaissance Of The Loup River Drainage Basin Nebraska, R. T. Sniegocki, R. H. Langford

United States Geological Survey: Publications

The Loup River and its tributaries drain an area of about 15,230 square miles in central Nebraska. The upper three-fifths of the drainage basin is in the Sand Hills region of Nebraska, and the lower two-fifths is in the loess plains and hills region. An eastward-thinning wedge of semiconsolidated and unconsolidated deposits of Tertiary and Quaternary age underlies the surficial dune sand and loess. These deposits, which are recharged by infiltrating precipitation, contain a tremendous volume of water at least 400 million acre-feet and annually discharge about 1.7 million acre-feet into streams. Although wells supply nearly all the water used …

Engineer Intelligence Study No. 191, Terrain Analysis, Alaska Slope Region, Alaska, 1959, Military Geography Branch, Usgs, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

The summary on Page 5 is paraphrased as follows. This digital document is a generalized description of the Arctic Slope region -- an area covering approximately 70,000 square miles. Access to the region and the feasibility of various access routes are discussed. Location and extent of natural fuel supplies are given. Factors controlling outdoor work feasibility are summarized graphically on Page 19. A terrain analysis of each of the three major physiographic provinces of the region. Those provinces are the Arctic Coastal Plain, Arctic Foothills, and Brooks Range provinces. Geographic factors which affected cross-country movement, construction, and water supply within …

A Study Of The Genesis Of The Krueger Zinc Deposit And The Near-By Barite Deposits Of The Potosi Quadrangle, Washington County, Missouri, Attilio Ligasacchi

Masters Theses

This thesis deals with the study of the genesis of the Krueger zinc deposit and the near-by barite deposits of the Potosi quadrangle, Washington County, Missouri.

The rocks outcropping in the quadrangle embrace Pre-Cambrian and Lower Paleozoic formations, the Potosi and Eminence being the most important formations with regard to the studied deposits.

The few structures present in the area of the vertical type and are more abundant in the southern part of the quadrangle.

Special emphasis is placed on the relationships between the barite, the associated sulfides, and the host rock.

Geometric and geochemical criteria are studied in detail …

An Iron Fulgurite From Nebraska, C. M. Riley

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

From the time of the ancients man has been impressed with the force of lightning and its effect on the rocks at the surface of the earth. It was Saussure in 1786 who first wrote a scientific account of a true fulgurite, and a wealth of literature has been written about the subject since this time. Many unusual fulgurites have been described, some of which may not truly be the result of lightning. The iron fulgurite is a strange conical object about 3 inches high composed mainly of tiny spheres and filaments of metallic iron intermixed with a small amount …

Boone County Preliminary Ground Water Study 1959 (Gm-14): Svoboda, G.R. Conservation And Survey Division , Size 8.5" X 11"., G.R. Svoboda

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

A Review Of Fossilization Processes In Different Sedimentary Environments (With Special Reference To The Time Factor Of Deposition Of Ore Minerals Associated With Fossil Material, In Particular The Coprolitic Phosphate Deposits), Giovanna Reggiori Ligasacchi

Masters Theses

"This thesis offers a cross/section through some principal fossilization processes involving organic matter (animals and plants) during and after sedimentation. The influence of different environments during fossilization is considered. The chemical composition of some classes of living invertebrates and plants is compared with the chemical composition of same organisms as found in consolidated sediments as fossils.

Some literature on carbonates, oxides, silicates, phosphates, and sulphides in fossils is reviewed with particular attention to those instances where the fossils are associated with ore minerals. Special consideration is given to the occurrence and composition of fecal matter in recent and consolidated sediments. …

The Geology Of The Uranium-Vanadium Deposit Of The Diamond No. 2 Mine, Near Gallup, New Mexico, Raymundo J. Chico

Masters Theses

"This thesis deals with the geology of the Diamond No. 2 Mine east of Gallup, New Mexico. The sedimentary rocks ranging from Triassic to Cretaceous are described in relation to the local stratigraphic setting.

The Dakota formation is the host rock of the ore deposit, and was therefore studied in detail with regard to its petrographic nature and the sedimentary structures such as slumping. Special emphasis is placed on the study of the relationships between the uranium and vanadium deposit and the host rock. Geometrical and geochemical criteria are offered in order to explain the local genesis of the ore …

Geology Of The Annapolis Area, Iron County, Missouri, Richard A. Zimmermann

Masters Theses

"The objectives of this investigation include the following: (1) to map the distribution of the igneous and sedimentary rocks, (2) to investigate the structure and lithology of these rocks and to determine their sequence, (3) to determine the stratigraphic position of the sedimentary rocks relative to known Missouri formations, (4) to determine the igneous rock types, and (5) to investigate the distribution and occurrences of economic minerals"--Purpose of Investigation, Page 6.

Geology Of The Northeast Portion Of Des Arc Quadrangle, Iron And Madison Counties, Missouri, Wesley Dean Weixelman

Masters Theses

"A geological investigation of the northeast portion of Des Arc Quadrangle in southeast Missouri was completed during the summer of 1958. Exposed Precambrian rocks include, from oldest to youngest, undifferentiated purple rhyolites with an interlayered tile-red rhyolite, andesine basalts with interlayered tuff, and an andesite. A diabase dike intrudes the lower purple rhyolites. The purple rhyolites account for about ninety-seven percent of the Precambrian exposures. Exposed Paleozoic rocks belong to the Bonneterre formation and include three members: (1) Lower Brown dolomite; (2) Light Gray dolomite with Tom Sauk limestone and arkosic sandstone and conglomerate facies; and (3) Upper Brown dolomite. …

Geology Of The Copper Deposits In The Eminence Region, Shannon County, Missouri, Lanny Lee Evans

Masters Theses

"Copper has been known to occur in Shannon County, Missouri since the early 1830's. A number of small deposits in an area around Eminence has been worked intermittently up to the present day. Little detailed geologic information is available on these deposits. The geology of the Eminence region consists of Precambrian rhyolite porphyry knobs projecting through dolomites and sandstones of Upper Cambrian and Ordovician age. A conglomerate of limited horizontal extent overlying the Precambrian is found at certain localities within the region. The only structures noted are the structural highs formed where the Paleozoic sediments lap upon the knobs. The …

Nebraska Groundwater Relation To Median, Fall 1958

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Groundwater Map Of Nebraska Showing Relation Of Fall 1959 Readings To Median Water Level Measurement, E. C. Reed

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

The Jurassic Todilto Formation Of New Mexico, Henry O. Ash

Earth and Planetary Sciences ETDs

The Todilto formation of New Mexico is a widespread and distinctive Jurassic unit confined to the northern one-half of the State and adjacent parts of Arizona and Colorado. It consists of a lower Limestone member and an upper Gypsum member. The Gypsum member also contains some limestone. The two members are not coextensive in area. Both are present in the central part of the area in which the formation is found, but the Limestone member extends far beyond the limits of the Gypsum member.

The Environment Of The Jurassic Todilto Basin, Northwestern New Mexico, Douglas W. Kirkland

Earth and Planetary Sciences ETDs

The Todilto evaporites of Upper Jurassic age were precipitated in a basin which covered more then 34,000 square miles of northwestern New Mexico and parts of Colorado and Arizona. The Todilto formation consists of a lower Limestone and an upper Gypsum member, and has a maximum thickness of a little more than 100 feet. Both members are varved.

Geology Of The Pedernal Hills Area Torrance County, New Mexico, John F. Fallis

Earth and Planetary Sciences ETDs

The area included in this report is in the north-central part of Torrance county, central New Mexico. The area is bounded on the north by U.S. Highway 66, on the east by U.S. Highway 285, on the south by U.S. Highway 60, and on the west by the approximate eastern edge of the Estancia basin. Clines Corners on U.S. Highway 66 forms the Northeast corner of the area. The mapped area contain approximately 230 square miles.

Geology Of The Hidden Mountains Valencia County, New Mexico, Patrick J.F. Gratton

Earth and Planetary Sciences ETDs

The hidden mountains are located in Valencia County, New Mexico, immediately southwest of the point where New Mexico State Highway 6 and the Santa Fe Railroad cross the Rio Puerco. This location places the Hidden Mountains near the center of the west half of the Albuquerque-Belen basin of structural and geomorphic Rio Grande Depression.

Stratigraphy And Structure Of The French Mesa Area, Rio Arriba County, New Mexico, Francis L. Fitter

Earth and Planetary Sciences ETDs

The French Mesa Area includes over 120 square miles between the Nacimiento- San Pedro uplift and the Gallina Mountain uplift in Rio Arriba County, New Mexico. The French Mesa anticline is the most striking structural and topographic feature of the area.

Geology Of The Southern Part Of The Ortiz Mountains Santa Fe County, New Mexico, John W. Peterson

Earth and Planetary Sciences ETDs

The Ortiz Mountains lie in a belt of early Tertiary intrusive centers adjacent to the Rio Grande depression of north-central New Mexico. Tertiary organic activity and subsequent erosion have etched this mountain group into considerable relief.

Intrusive activity occurred during early Tertiary Espinaso time and resulted in emplacement of sills and dikes of a central stock. Correlation of volcanism with intrusive phases is difficult. Most volcansim probably occurred during the later part of Ortiz igneous activity. An elongate vent is exposed in the eastern part of the mountains and structurally occupies the highest position in the group.

The principle igneous …

Maine Granite Quarries And Prospects, John R. Rand

Maine Collection

Maine Granite Quarries and Prospects : Minerals Resources Index No.2

John R. Rand, State Geologist - Maine Geological Survey

Department of Economic Development, Augusta, Maine : May 1, 1958.

Contents: Introduction / Acknowledgements / Explanatory Considerations / Selected Bibliography / Granite Quarries and Prospects -- Alphabetical Index / Granite Quarries and Prospects -- Country-Township Index / Buildings and Structures Built of Maine Granites / Granite Quarries and Prospects-Map Index (missing).

Geology Of The Northern Part Of Wellsville Mountain, Northern Wasatch Range, Utah, Stanley S. Beus

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Wellsville Mountain forms the extreme northern end of the Wasatch Range in northern Utah. It lies at the western margin of the Middle Rocky Mountain province and is bordered by valleys of the Basin and Range province. Many geologic investigations have been made in this region. Much of the Wasatch Range has been studied and mapped as well as parts of the Bear River Range, east of Cache Valley, and the Malad Range which extends north from Wellsville Mountain; however, the geology of Wellsville Mountain has not been studied or mapped in detail. Some reconnaissance mapping has been done and …

Geology Of The Southern Part Of Wellsville Mountain, Wasatch Range, Utah, Ronald H. Gelnett

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Wellsville Mountain is 10 miles west of Logan, Utah, at the northern extremity of the Wasatch Range. Paleozoic rocks form a northeast-dipping homocline bounded in part by northwest-trending high-angle faults and cut by a series of northeast-trending high-angle faults. A major transverse fault, with a stratigraphic displacement of 4,500 feet, divides the mountain into two distinct blocks.

The rock units of the area are comparable to those of the Logan quadrangle immediately to the east. Pre-Cambrian rocks crop out in Box Elder Canyon, just east of Brigham City, and are overlain by at least 20,000 feet of northeast-dipping Paleozoic rocks …