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The Ashland Coal Field, Rosebud, Powder River, and Custer Counties, Montana

Description: From introduction: The detailed information concerning the coal deposits of the Ashland field set forth in this report has been obtained in the course of an investigation that has been conducted both as a part of the United States Geological Survey's general systematic study of western coal lands and as an aid in the administration of the public lands. With the information obtained on the location of outcrops, the number, distribution, and thickness of coal beds, the accessibility of the coal, … more
Date: 1932
Creator: Bass, N. Wood
Item Type: Refine your search to only Report
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The Climax Molybdenum Deposit, Colorado

Description: From abstract: The largest single metal-mining operation in the history of mining in Colorado has been developed at Climax, as a result of the increased use of molybdenum in the steel and other industries. Production of molybdenum at Climax was notable for a short period during the World War; it ceased from April 1919 to August 1924 but since then has shown a steady increase. In 1930 from 1,000 to 1,200 tons of ore was milled daily, using only one unit of the 2,000-ton mill. The mine has a rese… more
Date: 1933
Creator: Butler, B. S. & Vanderwilt, J. W.
Item Type: Refine your search to only Report
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The Contact Mining District, Nevada

Description: From abstract: This report summarizes the results of a reexamination, in 1930, of the Contact mining district, in Elko County, northern Nevada. A report published as a result of a visit in 1910 summarizes the major features of the geology of the district, and the principal new data in the present paper pertain to mining development occasioned by the completion of a railroad through the camp in 1925.
Date: 1935
Creator: Schrader, Frank C.
Item Type: Refine your search to only Report
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Copper Deposits Near Keating, Oregon

Description: From abstract: The copper deposits near Keating, Oreg., in the southwestern foothills of the Wallowa Mountains, form part of a series distributed along a belt over 75 miles long. The belt containing copper deposits extends from a point west of North Powder to and beyond the Snake River at Homestead.
Date: 1931
Creator: Gilluly, James
Item Type: Refine your search to only Report
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Core Drilling for Coal in the Moose Creek Area, Alaska

Description: From abstract: The Moose Creek area is in the western part of the Matanuska Valley, in south-central Alaska, about 165 miles by railroad north of the coast at Seward. Coal deposits in the valley have been known since the early 1890's, and there have been producing mines since 1916, but the annual production is only about 40,000 tons, or less than one-third of the total amount consumed in the Territory. Early in 1931 Congress authorized the investigation of mineral resources in areas tributary t… more
Date: 1934
Creator: Waring, Gerald A.
Item Type: Refine your search to only Report
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The Crystal Cavities of the New Jersey Zeolite Region

Description: From abstract: The crystal cavities present in the mineral complex of the New Jersey traprock region have long excited the interest of mineralogists. In 1914 Fenner made the first detailed and comprehensive study of these cavities and suggested that babingtonite was the original mineral. Soon after this anhydrite was found occupying parts of some of the cavities at one of the quarries. At this time, too, Wherry concluded that glauberite was the original mineral of some of the cavities because o… more
Date: 1932
Creator: Schaller, Waldemar T.
Item Type: Refine your search to only Report
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The Curry District, Alaska

Description: From abstract: The Curry district lies on the south flank of the Alaska Range, on the southeast side of Mount McKinley. Most of it is west of the Alaska Railroad. The eastern portion can be easily reached from several points along the railroad route, but the western portion is much more difficult of access, owing to the numerous glacial streams and the rugged topography. The relief of the area is great, the elevation ranging from 500 feet along the Chulitna River to 20,300 feet at Mount McKinle… more
Date: 1934
Creator: Tuck, Ralph
Item Type: Refine your search to only Report
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The Eska Creek Coal Deposits Matanuska Valley, Alaska

Description: The coal deposits in the vicinity of Eska Creek, a small tributary from the north to the Matanuska River, are a part of the Matanuska coal field. One of the two commercial coal-producing districts in Alaska, this field is in the southcentral part of the Territory, at the head of Cook Inlet. It is 170 miles from Seward, the ocean terminus of the Government-owned and -operated Alaska Railroad, and is served by a branch line of that railroad.
Date: 1937
Creator: Tuck, Ralph
Item Type: Refine your search to only Report
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A Flora of Pottsville Age from the Mosquito Range, Colorado

Description: From introduction: This paper describes a small fossil flora from the vicinity of Leadville, central Colorado. The beds from which the flora was collected have long been referred to as the "Weber formation ", though with considerable doubt on the part of many geologists that all the beds so named in Colorado are correlative with the Weber quartzite of northeastern Utah. In current usage these Colorado beds are designated the " Weber (?) formation."
Date: 1934
Creator: Read, Charles B.
Item Type: Refine your search to only Report
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The Flora of the New Albany Shale: Part 1. Diichnia Kentuckiensis, a New Representative of the Calamopityeae

Description: Abstract: A new genus of the Cycadofilicales, Diichnia, is described from the New Albany shale, of late Devonian age, in central Kentucky. The one known species, which is based on stem material showing internal structure, belongs in the family Calamopityeae. Foundation for the generic segregation is seen in the double leaf truce of the genotype, D. kentuckiensis, in contrast with the originally single trace in other known representatives of the family.
Date: 1936
Creator: Read, Charles B.
Item Type: Refine your search to only Report
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Geologic History of the Yosemite Valley

Description: The principal result of the investigations upon which this report is based is the determination within narrow limits of the preglacial depth of the Yosemite Valley and of other facts concerning its preglacial development which permit fairly definite estimates of the proportionate shares of work performed by stream and by glacier. The investigations comprise a detailed survey of the glacial and geomorphologic features of the Yosemite region and an equally intensive study of its rock formations, … more
Date: 1930
Creator: Matthes, François E.
Item Type: Refine your search to only Report
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Geologic Structure and Occurrence of Gas in Part of Southwestern New York: Part 1. Structure and Gas Possibilities of the Oriskany Sandstone in Steuben, Yates, and Parts of the Adjacent Counties

Description: From introduction: Since the discovery of the Wayne-Dundee gas field in 1930 and the more recent discovery of large quantities of gas in the Oriskany sandstone about 2 miles north of the village of Greenwood the search for similar favorable structural features has been greatly stimulated in the Finger Lakes region and southwestward to the Pennsylvania line. To aid those interested in the area to gain a clearer understanding of the regional structure and its relation to the subsurface structure,… more
Date: 1938
Creator: Bradley, Wilmot H. & Pepper, J. F.
Item Type: Refine your search to only Report
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Geology and Coal Resources of the Meeker Quadrangle, Moffat and Rio Blanco Counties, Colorado

Description: From introduction: The investigations on which the greater part of this report is based were carried on by E. T. Hancock, the senior author, during the summer of 1911. They were undertaken by the United States Geological Survey under a comprehensive plan for collecting information about the undeveloped fuel resources of the Western States, both as a step toward the conservation of the coal resources of the United States and as a means of supplying the demand for information concerning the many … more
Date: 1930
Creator: Hancock, E. T. & Eby, J. Brian
Item Type: Refine your search to only Report
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Geology and Fuel Resources of the Southern Part of the Oklahoma Coal Field: Part 1. The McAlester District, Pittsburg, Atoka, and Latimer Counties

Description: From abstract: The McAlester district is an area of about 477 square miles in Pittsburg, Atoka, and Latimer Counties, Okla. It lies entirely within the Arkansas Valley geomorphic province except for the extreme northwest corner, which is crossed by the easternmost cuesta of the Osage Plains province.
Date: 1937
Creator: Hendricks, Thomas Andrews
Item Type: Refine your search to only Report
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Geology and Fuel Resources of the Southern Part of the Oklahoma Coal Field: Part 2. The Lehigh District Coal, Atoka, and Pittsburg Counties

Description: From abstract: The rocks exposed in the Lehigh district, in the Arkansas-Oklahoma coal basin, aggregate at least 5,000 feet in thickness. All are of Pennsylvanian age, except scattered thin Pleistocene (?) and Recent deposits. Rocks of Pottsville age crop out extensively in the southwestern part of the district and include the Springer formation, Wapanucka limestone, and Atoka formation. The Pottsville rocks are overlain in the northeastern part by formations of Allegheny age, including the Har… more
Date: 1937
Creator: Knechtel, Maxwell M.
Item Type: Refine your search to only Report
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Geology and Fuel Resources of the Southern Part of the Oklahoma Coal Field: Part 3. Quinton-Scipio District

Description: From abstract: The Quinton-Scipio district includes about 450 square miles, mostly in Pittsburg County but partly in Haskell and Latimer Counties, Okla. The stratified rocks exposed at the surface in the district are the McAlester, Savanna, Boggy, Thurman, Stuart, and Senora formations, of Pennsylvanian age, and consist of alternating beds of shale and sandstone with some coal beds and a few beds of limestone less than 1 foot thick. The total thickness of these formations exposed in the distric… more
Date: 1938
Creator: Dane, C. H.; Rothrock, Howard Eugene & Williams, James Steele
Item Type: Refine your search to only Report
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Geology and Fuel Resources of the Southern Part of the Oklahoma Coal Field: Part 4. the Howe-Wilburton District, Latimer and Le Flore Counties

Description: From abstract: The Howe-Wilburton district is a narrow area of about 540 square miles that extends westward from the Arkansas State line for about 60 miles across Latimer and Le Flore Counties, Okla. It lies in the southern part of the Arkansas Valley physiographic province and is a part of the large Arkansas-Oklahoma coal field.
Date: 1939
Creator: Hendricks, Thomas Andrews
Item Type: Refine your search to only Report
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Geology and Fuel Resources of the Southern Part of the San Juan Basin, New Mexico: Part 1. The Coal Field From Gallup Eastward Towart Mount Taylor, with a Measured Section of Pre-Dakota(?) Rocks Near Navajo Church

Description: From abstract: The report describes the geology and coal deposits of the southwestern part of the San Juan Basin, N.Mex. The field lies northeast of the town of Gallup, on the Atchison, Topeka & Santa Fe Railway, and is an irregular tract of about 630 square miles in central and west-central McKinley County; it includes the southeast corner of the Navajo Indian Reservation.
Date: 1934
Creator: Sears, Julian D.
Item Type: Refine your search to only Report
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Geology and Mineral Resources of North-Central Chouteau, Western Hill, and Eastern Liberty Counties, Montana

Description: From abstract: This report describes a rectangular area of about 2,600 square miles in Chouteau, Hill, and Liberty Counties, Mont., adjacent to the international boundary. The area is a portion of the Missouri Plateau, a section of the Great Plains province, and lies between the Highwood Mountains, Bearpaw Mountains, and Sweetgrass Hills, of north-central Montana. The southern part of the area is drained by the Missouri River and its tributary Marias River, but the northern part is drained by t… more
Date: 1937
Creator: Pierce, William Gamewell & Hunt, Charles B.
Item Type: Refine your search to only Report
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