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Zinc-Lead-Copper Resources and General Geology of the Upper Mississippi Valley District

Description: From introduction: This report discusses the general geology of the Upper Mississippi Valley zinc-lead district, the distribution of ore deposits, and some relations of the ore deposits to the major geologic features.
Date: 1955
Creator: Heyl, Allen V.; Lyons, Erwin J.; Agnew, Allen F. & Behre, Charles H., Jr.
Partner: UNT Libraries Government Documents Department
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Geology of the Dry Valley Quadrangle, Idaho

Description: From introduction: The principal objective of the program is to make detailed geologic maps of the areas in which important phosphate deposits in the Phorphoria formation occur. It is hoped that the maps will serve both as an aid in selecting possible sites for mining and as a basis for calculating reserves.
Date: 1955
Creator: Cressman, Earle Rupert & Gulbrandsen, Robert A.
Partner: UNT Libraries Government Documents Department
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Geology of Devils Tower National Monument, Wyoming

Description: From abstract: Devils Tower is a steep-sided mass of igneous rock that rises above the surrounding hills and the valley of the Belle Fourche River in Crook County, Wyo. It is composed of a crystalline rock, classified as phonolite porphyry, that when fresh is gray but which weathers to green or brown. Vertical joints divide the rock mass into polygonal columns that extend from just above the base to the top of the Tower.
Date: 1956
Creator: Robinson, Charles Sherwood
Partner: UNT Libraries Government Documents Department
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Geology of the Christmas Copper Mine, Gila County, Arizona

Description: From introduction: The exploration project at Christmas was carried on cooperatively by the Geological Survey and U. S. Bureau of Mines. Mr. 0. M. Bishop, Engineer for the Bureau of Mines, examined the property and in his report of June 6, 1942 recommended that six holes be drilled from the 800 level of the mine. The Bureau of Mines began drilling in September 1942, and the Survey investigations began a month later. Since any ore bodies discovered below the 800 level would be inaccessible until… more
Date: 1956
Creator: Peterson, Nels P. & Swanson, Roger W.
Partner: UNT Libraries Government Documents Department
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Perlite Resources of the United States

Description: Abstract: This report abstracts the published information on geologic occurrence and distribution of perlite in the United States. Perlite is important in the growing light-weight aggregates industry. The geology and petrology of perlite are described and brief mention is made of mining, milling, processing, economic factors, and reserve figures where known. A table of analyses of the rhyolitic, latitic, and dacitic perlite, welded tuff, pitchstone, and obsidian is included mainly to show the w… more
Date: 1956
Creator: Jaster, Marion C.
Partner: UNT Libraries Government Documents Department
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Geology of the Stanford-Hobson Area, Central Montana

Description: From introduction: The Stanford-Hobson area project was undertaken by the United States Geological Survey, in cooperation with the United States Bureau of Reclamation, as part of a program for the geologic mapping and investigation of mineral resources in the Missouri River basin. The field work that is the basis of the ensuing report consisted of mapping the geology and determining stratigraphic relationships in sufficient detail to evaluate the mineral resources, especially the oil and gas po… more
Date: 1956
Creator: Vine, James David
Partner: UNT Libraries Government Documents Department
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Reconnaissance Geology of Western Mineral County, Montana

Description: From introduction: This reconnaissance study was undertaken to determine the major geologic features of the western part of Mineral County, Mont., principally in the drainage basin of the St. Regis River.
Date: 1956
Creator: Wallace, Robert E. & Hosterman, John W.
Partner: UNT Libraries Government Documents Department
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Mineral Resources of the San Carlos Indian Reservation, Arizona

Description: From abstract: At the request of the Council of the San Carlos Apache Tribe the U. S. Geological Survey entered into a cooperative agreement calling for a brief reconnaissance study to determine, as far as practical, the mineral potential of the San Carlos Indian Reservation. Five months of field work was done during the winter and spring of 1952-53. About 30 percent of the reservation is covered by alluvial deposits of late Tertiary, Pleistocene, and Recent age, and another 60 percent is cover… more
Date: 1956
Creator: Bromfield, Calvin Stanton & Shride, Andrew F.
Partner: UNT Libraries Government Documents Department
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Geology and Coal, Oil and Gas Resources of the New Kensington Quadrangle, Pennsylvania

Description: From abstract: This report is one of a series of publications by the United States Geological Survey on the Appalachian coal, oil, and gas fields. The area described occupies 227 square miles in Allegheny, Butler, and Westmoreland Counties, in western Pennsylvania, immediately north of Pittsburgh.
Date: 1932
Creator: Richardson, G. B.
Partner: UNT Libraries Government Documents Department
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The Girdwood District, Alaska

Description: From abstract: The Girdwood district has been known for about 35 years to contain placer gold, but the source of the gold in veins was not discovered until about 1909. When the Alaska Railroad was completed through Girdwood it was hoped that the improved transportation facilities would enable the lode mines to operate at a profit and also to furnish tonnage to the railroad. Production from the quartz veins, however, has been negligible, although one placer mine has been operating steadily for s… more
Date: 1933
Creator: Park, C. F., Jr.
Partner: UNT Libraries Government Documents Department
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Past Placer-Gold Production from Alaska

Description: "To the end of 1930 Alaska, according to the records of the Geological Survey, had produced placer gold to the value of $258,962,000 from mines widely scattered throughout its length and breadth. The distribution of the placers from which the gold was recovered has been stated in more or less detail in the annual summaries published by the Geological Survey on the mineral industry of Alaska and also in its more complete reports on many of the individual mining districts. Although these summarie… more
Date: 1933
Creator: Smith, Philip S.
Partner: UNT Libraries Government Documents Department
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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
Partner: UNT Libraries Government Documents Department
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Notes on the Geology of the Alaska Peninsula and the Aleutian Islands

Description: Abstract: During the spring of 1932 an opportunity was offered by the United States Navy for a geologist to accompany an expedition organized to make a reconnaissance of the western part of Alaska Peninsula and the Aleutian Islands. This expedition visited several localities the geology of which was little known. It was found, as had already been expected, that the islands west of Unimak Pass are composed mainly of basic volcanic lavas and fragmental materials, into which have later been inject… more
Date: 1934
Creator: Capps, Stephen R.
Partner: UNT Libraries Government Documents Department
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Geology of the Santa Rita Mining Area, New Mexico

Description: From abstract: The Santa Rita mining area (pl. 1), covering 35 square miles of semiarid mountainous land, lies within the Silver City 30-minute quadrangle, Grant County, N. Mex., and includes the most productive part of the Central or Hanover mining district. Ore was produced in this district as early as 1804 and production continued intermittently for a century before the developments were undertaken that led to large-scale copper mining, which began in 1912. The output of zinc, lead, and iron… more
Date: 1935
Creator: Spencer, Arthur C. & Paige, Sidney
Partner: UNT Libraries Government Documents Department
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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.
Partner: UNT Libraries Government Documents Department
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Lode Deposits of Eureka and Vicinity, Kantishna District, Alaska

Description: From abstract: The Kantishna mining district is about 90 miles west of McKinley Park station on the Alaska Railroad. The part of the district covered by this report comprises an area of about 72 square miles in the form of a strip 6 miles wide and 13 miles long. The bedrock is mainly a metamorphic series of rocks which within the area has been differentiated into a quartz-muscovite schist and a calcareous faces that ranges from limestone to chlorite schist. A few small dikes of quartz porphyry … more
Date: 1933
Creator: Wells, Francis G.
Partner: UNT Libraries Government Documents Department
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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.
Partner: UNT Libraries Government Documents Department
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The Rosebud Coal Field, Rosebud and Custer Counties, Montana

Description: From abstract: The Rosebud coal field, named from Rosebud Creek and the village of Rosebud, includes an area of about 1,050 square miles and forms a very small part of the subbituminous and lignite coal fields of eastern Montana and Wyoming and the western part of the Dakotas. It is an irregularly bounded tract lying south of the Yellowstone River in eastern Rosebud County and western Custer County and measures 50 miles from east to west and 28 miles from north to south. It adjoins the Forsyth … more
Date: 1936
Creator: Pierce, William Gamewell
Partner: UNT Libraries Government Documents Department
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The Richey-Lambert Coal Field, Richland and Dawson Counties, Montana

Description: From abstract: The Richey-Lambert coal field is an area of about 900 square miles in Richland and Dawson Counties, eastern Montana, along the divide between the Missouri and Yellowstone Rivers. In this region only flat-lying continental rocks occur near the surface. About 300 feet of the Lebo shale member and about 930 feet of the coal-bearing Tongue River member of the Fort Union formation, of Eocene age, are exposed in the area. Deposits of terrace gravel at two levels in the field are tentat… more
Date: 1936
Creator: Parker, Frank S.
Partner: UNT Libraries Government Documents Department
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Phosphate Rock Near Maxville, Philipsburg, and Avon, Montana

Description: From abstract: This paper gives the results of a resurvey of certain areas in Montana to which renewed interest has been directed by the development recently of a market for crude phosphate rock in British Columbia, nearby.
Date: 1936
Creator: Pardee, J. T.
Partner: UNT Libraries Government Documents Department
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Geology and Mineral Resources of the Western Part of the Arkansas Coal Field

Description: From introduction: This report describes the mineral resources of the western part of the Arkansas coal field and considers the features of geologic structure and stratigraphy that are essential to an understanding of the nature of occurrence of the mineral resources. The area is an irregular-shaped tract of about 1,100 square miles in Scott, Sebastian, Crawford, Franklin, and Logan Counties, in west-central Arkansas.
Date: 1937
Creator: Hendricks, T. A. & Parks, Bryan
Partner: UNT Libraries Government Documents Department
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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.
Partner: UNT Libraries Government Documents Department
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