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Shorter Contributions to General Geology, 1928

Description: From introduction: The district discussed in this report embraces the entire northern peninsula of Michigan and the parts of northern Wisconsin and northeastern Minnesota that were covered by a re-advance of the Superior lobe of the Labrador ice sheet late in the Wisconsin stage of glaciation.
Date: 1929
Creator: Mendenhall, W. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Shorter Contributions to General Geology, 1936

Description: From abstract: This report describes four species of Ostreidae from the Upper Cretaceous of the Gulf region. The zones that the species characterize lie either in the upper part of the Austin chalk or in beds of upper Austin age.
Date: 1940
Creator: Loughlin, G. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Shorter Contributions to General Geology, 1929

Description: From introduction: This report describes the deposits of analcite in the Green River formation, to compare them with other similar deposits, and to present them with other similar deposits, and to present the observations and inferences that led him to explain them as alteration products of volcanic ash that fell into an ancient saline lake. The report also records the occurrence of several thin beds of sepiolite, or meerschaum, in the Green River formation and presents new data on the molds of… more
Date: 1930
Creator: Mendenhall, W. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Pre-Cambrian Rocks of the Lake Superior Region: A Review of Newly Discovered Geologic Features, with a Revised Geologic Map

Description: From abstract: Detailed knowledge of the geology of the pre-Cambrian rocks of the Lake Superior region has been greatly augmented since the publication of Monograph 52 by the United States Geological Survey in 1911. The authors have attempted in the present report to assemble as much of this new information as possible, and to give the reader a birdseye view of the geology as seen in the light of all studies made there up to the present time. Detailed descriptions are not presented, and the emp… more
Date: 1935
Creator: Leith, C. K.; Lund, Richard Jacob & Leith, Andrew
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geology and Water Resources of the Northern Portion of the Black Hills and Adjoining Regions in South Dakota and Wyoming

Description: Introduction: this paper, which supplements the report on the geology and water resources of the southern half of the Black Hills, published in 1901, is the result of studies made at intervals during the years 1899 to 1907.
Date: 1909
Creator: Darton, Nelson Horatio
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Miocene Foraminifera of the Coastal Plain of the Eastern United States

Description: From introduction: In the following report the species of Foraminifera found in the Miocene of the Coastal Plain region of the eastern United States from Florida to Maryland are described and recorded. Numerous papers have been published on this region, some of which, however, are largely lists. Where the original material on which a paper was based has not been available for the present study, the records have been omitted, as it is very difficult to place the species in their proper position … more
Date: 1933
Creator: Cushman, Joseph A. & Cahill, Edgar D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Upper Cretaceous Ammonite Genus Barroisiceras in the United States

Description: From introduction: The ammonite genus Barroisiceras Grossouvre is noteworthy because of its wide geographic distribution and its apparently small stratigraphic range. It is reported from deposits of Coniacian age in Europe, Africa, South America, and North America. In the North American Upper Cretaceous it is rather rare, authentic species having been recognized hitherto only in the Austin chalk of Texas, in the Coniacian beds of Zumpango del Rio, Guerrero, Mexico, and, with doubt as to the sou… more
Date: 1931
Creator: Reeside, John B., 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 the United States

Description: From introduction: The U.S. Geological Survey has selected and assembled sets of photographs that illustrate numerous types of geologic features in the United States. This catalog lists these special sets of photographs that are available for purchase and describes the features illustrated. One reduced photograph from each set is shown on the back pages of this catalog to assist the purchaser in his selection.
Date: 1968
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Some Middle Cenomanian (Upper Cretaceous) Acanthoceratid Ammonites from the Western Interior of the United States

Description: Abstract: The ammonite family Acanthoceratidae de Grossouvre is represented in the Western Interior region by many genera. Species and subspecies of Calycoceras, Acanthoceras, Cunningtoniceras, Plesiacanthoceras, and Protacanthoceras are important guide fossils to narrow zones of middle Cenomanian age in southeastern Montana, northeastern Wyoming, western South Dakota, and central Kansas. In this region, the ammonite zonation through most of the middle Cenomanian seems to be, from oldest to you… more
Date: 1987
Creator: Cobban, William Aubrey
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Cretaceous Deposits of the Eastern Gulf Region and Species of Exogyra from the Eastern Gulf Region and the Carolinas

Description: From object and scope of the work: This paper is intended as a brief statement of the results of stratigraphic and paleontologic investigations made by the writer during recent years in the Cretaceous areas of the eastern Gulf region.
Date: 1914
Creator: Stephenson, Lloyd William
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Quaternary Geology of Minnesota and Parts of Adjacent States

Description: Description of geology in Minnesota and explanations of glacial drift within the state an immediate surroundings (Wisconsin, Iowa, North Dakota and South Dakota) with sections detailing the movement of each glacier and relevant geological notes. Index starts on page 147.
Date: 1930
Creator: Leverett, Frank, 1859-1943
Item Type: Refine your search to only Report
Location: None
Partner: UNT Libraries Government Documents Department
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Gold Quartz Veins of the Alleghany District, California

Description: From Outline of the Report: The Alleghany district, in the southern part of Sierra County, Calif., has long been famous for the high-grade gold ore of its quartz veins. The oldest rocks of the district (pp. 6-17) are of sedimentary and volcanic origin and correspond to part of the Calaveras formation as mapped in the Colfax and Downieville folios of the Geologic Atlas of the United States. These rocks are divided into five formations, of which three-the Blue Canyon, Relief, and Cape Horn format… more
Date: 1932
Creator: Ferguson, Henry G. & Gannett, Roger W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geology and Ore Deposits of the Park City District, Utah

Description: From introduction: This survey was the first systematic work undertaken in this geologic province since the Geological Exploration of the Fortieth Parallel, in 1869, and was the first detailed geologic examination of a wide area in the Wasatch Range. Hence, an unusual amount of general geologic work in the region surrounding the special field was required to establish fundamental geologic facts.
Date: 1912
Creator: Boutwell, John Mason
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Lithologic Studies of Fine-Grained Upper Cretaceous Sedimentary Rocks of the Black Hills Region

Description: More than nine-tenths of the Upper Cretaceous rocks in northeastern Wyoming are fine-grained shales, mudstones, and calcareous marls. A comparative study of the mineralogy, chemical and mechanical composition, density and porosity, fissility, and lamination of samples of these rocks discloses several relations that throw light on the geologic history and structural deformation of the region, and perhaps on its oil and gas possibilities.
Date: 1930
Creator: Rubey, William Walden
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geology of the Big Snowy Mountains, Montana

Description: From introduction: The main purpose of the field investigations on which this paper is based was to determine the structure of the mountains. The geologic formations were therefore studied, and sufficient data were obtained to construct a combined areal and structural map.
Date: 1931
Creator: Reeves, Frank
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Glaciation in Alaska

Description: From introduction: The history of glaciation in Alaska offers a fascinating field for study. Because of the remarkable development and easy accessibility of valley and piedmont glaciers in the coastal mountains, Alaska has long been popularly conceived as a land of ice and snow, a concept that is only slowly being corrected. To the student of glaciation, however, Alaska affords a unique opportunity to observe the formation, movement, and dissipation of the many living glaciers, to examine the r… more
Date: 1931
Creator: Capps, Stephen R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Pliocene Fossils From Limestone in Southern Florida

Description: Abstract: This paper describes the mollusks and echinoids found in limestone dredged from ditches along the Tamiami Trail in southern Florida, in the area mapped as "Lostmans River limestone (Quaternary)" by Sanford but included in the Pliocene Caloosahatchee formation by Cooke and Mossom on the evidence of these fossils as identified by Mansfield. The matrix of the fossils is unlike the typical Caloosahatchee formation, which is sandy, but the fauna is closely related to that of the upper part… more
Date: 1931
Creator: Mansfield, Wendell C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Miocene Flora From Grand Coulee, Washington

Description: From introduction: The fossil plants described in the present report were collected at the north end of Grand Coulee during the summer of 1927 by Messrs. T. A. Bonser, F. A. Roberts, and Walter Bruce, of Spokane, and F. W. McCann, of Coulee City. The locality is in the big bend of the Columbia River near the northern boundary of Grant County, Wash., about 85 miles west of the plant-bearing Latah sediments around Spokane. The outcrop in Grand Coulee is about the same distance east of the crest o… more
Date: 1931
Creator: Berry, Edward Wilber
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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