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The Geology and Petrography of Crater Lake National Park

Description: From introduction: The two papers published here refer practically to the whole region included in the National Park. The one. Part I, treats primarily of the geology, the development of the great volcano, Mount Mazama, and its collapse, which gave birth to Crater Lake; the other, Part II, deals with the petrography, and gives a special description of the various rocks occurring in the park.
Date: 1902
Creator: Diller, Joseph Silas & Patton, Horace Bushnell
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Reconnaissance of the Northwestern Portion of Seward Peninsula, Alaska

Description: From introduction: In response to an urgent demand by the public, the Geological Survey, in 1900, undertook a topographic and geologic reconnaissance of the southern half of the Seward Peninsula.( The area mapped embraced the more important gold fields of the peninsula. The topographic map made in 1900 included the drainage of Bering Sea from Cape Darby to Port Clarence, the southern drainage of Grantley Harbor and Imuruk Basin, and the northern drainage of Norton Sound. A geologic reconnaissan… more
Date: 1902
Creator: Collier, Arthur J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Preliminary Report on the Ketchikan Mining District, Alaska, with an Introductory Sketch of the Geology of Southeastern Alaska

Description: From introduction: Since 1898 the United States Geological Survey has been carrying on a systematic investigation of the mineral resources of Alaska.As the northern mining districts of southeastern Alaska had already been the subject of an investigation by Dr. Becker in 1895,a and as the Ketchikan district was being rapidly developed, it was decided to spend the greater part of the short season in the Ketchikan district and in the fall to make a more hasty reconnaissance of the northern belt, i… more
Date: 1902
Creator: Brooks, Alfred Hulse
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geology of the Hot Sulphur Springs quadrangle, Grand County, Colorado

Description: Scope and Purpose of Work: The quadrangle was mapped as part of the U.S. Geological Survey program of classifying and evaluating lands in the Public Domain. Mineral rights for coal had been retained in parts or all of Tps. 2 and 3 N., Rs. 77, 78, and 79 W. These areas are in part underlain by sedimentary rocks of Late Cretaceous(?) and early Tertiary age (Middle Park Formation), and in North Park these rocks are called the Coalmont Formation and contain coal. The chief purpose of the work was t… more
Date: 1968
Creator: Izett, Glen Arthur
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Sorting and Deposition of Allochthonous Plant Material in a Modern Environment at Silwood Lake, Silwood Park, Berkshire, England

Description: Abstract: Quantitative statistical sampling of plant debris entombed within deltaic sediments of a Holocene fluviolacustrine environment at Silwood Lake, Berkshire, demonstrates that patterns of deposition exist that can be used to reconstruct the relative spatial distributions of species within the source vegetation.
Date: 1981
Creator: Spicer, Robert A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Dictionary of Alaska Place Names

Description: Introduction: This work is an alphabetical list of the geographic names that are now applied and have been applied to to places and features of the Alaska Landscape.
Date: 1967
Creator: Orth, Donald J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Postglacial Volcanic Deposits at Mount Baker, Washington, and Potential Hazards From Future Eruptions

Description: Abstract: Eruptions and other geologic events at Mount Baker during the last 10,000 years have repeatedly affected adjacent areas, especially the valleys that head on the south and east sides of the volcano. Small volumes of tephra were erupted at least four times during the past 10,000 years. Future eruptions like these could cause as much as 35 centimeters of tephra to be deposited at sites 17 kilometers from the volcano, 15 centimeters of tephra to be deposited 29 kilometers from the volcan… more
Date: 1978
Creator: Hyde, Jack H. & Crandell, Dwight Raymond
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Stratigraphy and Microfaunas of the Oquirrh Group in the Southern East Tintic Mountains, Utah

Description: Abstract: The Oquirrh Group of Pennsylvanian and Permian age in the southern East Tintic Mountains, Utah, is more than 15,000 feet (4,572 m) thick and consists of an incomplete section of the West Canyon Limestone (Morrowan) 960 feet (293 m) thick, a nearly complete section of the Butterfield Peaks Formation (Atokan(?) and Des Moinesian) about 5,800 feet (1,768 m) thick, a complete section of the Bingham Mine Formation (Missourian) 3,200-3,400 feet thick (975-1,036 m), and a complete section of… more
Date: 1977
Creator: Morris, H. T.; Douglass, Raymond C. & Kopf, Rudolph W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Platinum Deposits of the Goodnews Bay District, Alaska

Description: From abstract: Platinum placers were discovered in 1926 in a small area south of Goodnews Bay, in southwestern Alaska. Beginning in 1927, the placers were worked for 7 years by small-scale mining methods; in later years dragline excavators and a dredge were utilized. These deposits are important, not only because they are of high grade but because they are the only commercial source of platinum metals in the United States. This report details the deposits in this district.
Date: 1976
Creator: Mertie, John Beaver, Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Revisions of Ulmus and Zelkova in the Middle and Late Tertiary of Western North America

Description: Abstract: Examination of previously described and some undescribed leaves of Ulmus and Zelkova from the later Oligocene, Miocene, and Pliocene of western North America indicates that at least eight species of Ulmus and two species of Zelkova are represented. Three new species are described: Ulmus chaneyi, U. knowltoni, and Zelkova browni.
Date: 1977
Creator: Tanai, Toshimasa & Wolfe, Jack A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Lyon Station-Paulins Kill Nappe : the Frontal Structure of the Musconetcong Nappe System in Eastern Pennsylvania and New Jersey

Description: From abstract: Geologic and aeromagnetic data show that a major tectonic unit underlies rocks of the Musconetcong nappe in the Great Valley of eastern Pennsylvania and New Jersey. This structure, the Lyon Station-Paulins Kill nappe, can be traced from Lyon Station, Pa., at least to Branchville, N.J., a distance of about 120 km. The nappe has a core of Precambrian crystalline rocks as shown by an aeromagnetic anomaly that has the same signature as the outcropping Precambrian rocks of the Muscone… more
Date: 1978
Creator: Drake, Avery Ala, Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Descriptive Catalog of Selected Aerial Photographs of Geologic Features in Areas Outside the United States

Description: From introduction: The U.S. Geological Survey has selected and assembled 67 sets of aerial photographs that illustrate a variety of geologic features in Antarctica, South and Central America, the southwest Pacific, Iran, Japan, the Arabian Peninsula, Pakistan, and mainland China. Contact prints of the photographs composing these sets are available for purchase. Sets of photographs of geologic features in the United States and Puerto Rico are listed in a separate catalog (Denny, C. S., and other… more
Date: 1969
Creator: Warren, Charles R.; Schmidt, Dwight Lyman; Denny, Charles Storrow & Dale, William J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Stratigraphy and Geologic History of the Montana Group and Equivalent Rocks, Montana, Wyoming, and North and South Dakota

Description: From introduction: This is a progress report on regional stratigraphic and paleontologic studies of the Upper Cretaceous Montana Group and equivalent rocks in the northern part of the western interior of the United States. It presents preliminary data on the positions of strandlines during a 14-m.y. (million year) span of the Late Cretaceous as well as our interpretations of the geologic history of this period.
Date: 1973
Creator: Gill, James R. & Cobban, William Aubrey
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Tectonically Controlled Fan Delta and Submarine Fan Sedimentation of Late Miocene Age, Southern Temblor Range, California

Description: From introduction: The objectives of this report are to (1) document the stratigraphic framework of the Santa Margarita Formation and part of the Monterey Shale in the southern Temblor Range, (2) interpret the environments of deposition and depositional processes of the above units, and (3) evaluate the influence of tectonism on Santa Margarita sedimentation, with special attention given to testing the hypothesis of Berry and others (1968).
Date: 1989
Creator: Ryder, Robert T. & Thomson, Alan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Studies Related to the Charleston, South Carolina, Earthquake of 1886: a Preliminary Report

Description: From abstract: The seismic history of the southeastern United States is dominated by the 1886 earthquake near Charleston, S.C. An understanding of the specific source and the uniqueness of the neotectonic setting of this large earthquake is essential in order to properly assess seismic hazards in the southeastern United States. Such knowledge will also contribute to the fundamental understanding of intraplate earthquakes and will aid indirectly in deciphering the evolution of Atlantic-type cont… more
Date: 1977
Creator: Rankin, Douglas W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Research in the Geysers-Clear Lake Geothermal Area, Northern California

Description: From abstract: The Geysers-Clear Lake geothermal area lies within the central belt of the Franciscan assemblage in northern California. The structure of this terrane is characterized by northeast-dipping imbricate thrust slices that have been warped and cut by steeply dipping strike-slip and normal faults. Introduction of magma into the crust beneath the Geysers-Clear Lake area can be related to eastsoutheast extension accompanying northward propagation of the San Andreas transform system betwe… more
Date: 1981
Creator: McLaughlin, Robert J. & Donnelly-Nolan, Julie M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geology of the Great Smoky Mountains National Park. Tennessee and North Carolina

Description: From Preface: "The present account summarizes the results of a long investigation of the rocks of the Great Smoky Mountains (1946-55) by geologists of the staff of the U.S. Geological Survey, in collaboration with those of the Tennessee Division of Geology. The technical details of this investigation have already been set forth at length in professional papers of the U.S. Geological Survey. The present account contains the gist of these findings about the rocks of the mountains, and is accompan… more
Date: 1968
Creator: King, Philip Burke; Neuman, Robert B. & Hadley, Jarvis B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Contributions to Astrogeology, 1967-71

Description: From contributions of astrogeology: The principal goal of research in astrogeology is the solution of several cardinal problems of geology...The present volume is the first of a series of professional papers that will describe major results of research in astrogeology.
Date: 1972
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geology and Ore Deposits of the Picher Field, Oklahoma and Kansas

Description: From Purpose and Scope of Report: This report presents a detailed description of the ore deposits of the Picher field and all phases of geology having a bearing on their localization, origin, and the search for them. It is based mainly on work done by the U.S. Geological Survey, but it also incorporates pertinent data from published literature, especially from the outstanding work of George M. Fowler and associates, and some unpublished data obtained from the geologic staffs of the mining compa… more
Date: 1970
Creator: McKnight, Edwin Thor & Fischer, Richard P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Duration of Hydrothermal Activity at Steamboat Springs, Nevada, From Ages of Spatially Associated Volcanic Rocks

Description: Abstract: Steamboat Springs is a presently active equivalent of epithermal gold-silver ore-forming systems. Hot-spring sinter deposits contain small amounts of gold, silver, mercury, antimony, and arsenic. Hot-spring activity probably started before extrusion of the basaltic andesite of Steamboat Springs. Old sinter from the Steamboat Springs system occurs in gravels above and below the basaltic andesite. Intense hydrothermal alteration, including almost complete replacement by hydrothermal pot… more
Date: 1979
Creator: Silberman, M. L.; White, D. E.; Keith, T. E. C. & Dockter, R. D.
Item Type: Refine your search to only Report
Location: None
Partner: UNT Libraries Government Documents Department
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Tectonics of Southeastern Arizona

Description: From abstract: The part of Arizona south and east of Tucson is underlain by a wide assortment of deformed rocks, as well as by some major mineralized districts. A synthesis of the tectonic evolution of the region is offered in this report, which is based on older studies of mining districts and on more recent field studies by students and by the U.S. Geological Survey, augmented by field review and selective remapping of many key areas. Through this synthesis the rocks of the region are seen to… more
Date: 1981
Creator: Drewes, Harald D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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