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The Mount Eielson District Alaska
From abstract: The Mount Eielson district lies in south-central Alaska, on the north side of the Alaska Range, about 30 miles east of Mount McKinley. The most widely distributed rocks of the district include a thick series of thin-bedded limestone, calcareous shale, and graywacke of Paleozoic, probably Devonian, age. These sediments are cut by a mass of granodiorite which forms most of Mount Eielson and which was intruded probably in late Mesozoic time. The intrusive has sent a multitude of dikes and sills into the associated sediments.
Date:
1933
Creator:
Reed, John C.
Object Type:
Report
System:
The UNT Digital Library
Mineral Deposits Near the West Fork of the Chulitna River Alaska
From abstract: The area in the vicinity of the West Fork of the Chulitna River, Alaska, one of those examined in 1931 in connection with the study of mineral resources in districts tributary to the Alaska Railroad, contains numerous prospects but, as yet, no productive mines. Its placer deposits are negligible but some of its lodes may prove valuable for gold and silver and perhaps also for copper and arsenic.
Date:
1933
Creator:
Ross, Clyde P.
Object Type:
Report
System:
The UNT Digital Library
The Moose Pass-Hope District, Kenai Peninsula, Alaska
This report provides and in-depth description of the Moose Pass-Hope District in Alaska, including on overview of the general area, physical geology, and economic geology.
Date:
1933
Creator:
Tuck, Ralph
Object Type:
Report
System:
The UNT Digital Library
Geology of Big Horn County and the Crow Indian Reservation, Montana: with Special Reference to the Water, Coal, Oil and Gas Resources
From introduction: This report contains information concerning the geology of Big Horn County and the Crow Indian Reservation and their resources in ground water, coal, oil, and gas. These facts were collected in the course of studies for about a dozen field projects, which ranged in character from reconnaissance studies of large areas to very detailed mapping of certain tracts to show the occurrence of oil and gas. Consequently, the information at hand, either as to the geology or the resources, is not equally complete and definite for all parts.
Date:
1935
Creator:
Thom, W. T., Jr.; Hall, George Martin; Wegemann, Carroll H. & Moulton, G. F.
Object Type:
Report
System:
The UNT Digital Library
Progress of Surveys in the Anthracite Ridge District Alaska
From abstract: Anthracite Ridge is in south-central Alaska, on the north side of the Matanuska River Valley, about 200 miles north of Seward, the coastal terminus of the Alaska Railroad. The specific object of the investigations in this field during the summer of 1931 was to collect information regarding the character and extent of the anthracite deposits. These studies were carried on in connection with similar intensive studies of deposits of other kinds of minerals throughout the country tributary to the Alaska Railroad.
Date:
1933
Creator:
Richards, Ralph W. & Waring, Gerald A.
Object Type:
Report
System:
The UNT Digital Library
Lode Deposits of the Fairbanks District, Alaska
From abstract: To help the mining industry of Alaska and to assist in the development of the mineral resources of the Territory have been the prime motives of the Geological Survey's investigations in Alaska during the past 35 years, in which nearly one half of the Territory has been covered by its reconnaissance and exploratory surveys. It was natural, therefore, that the Alaska Railroad, when it undertook intensive consideration of the problem of finding tonnage that would increase its revenues, should look to the Geological Survey to supply technical information as to the known mineral deposits along its route and to indicate what might be done to stimulate a larger production of minerals and induce further mining developments and prospecting that would utilize its service.
Date:
1933
Creator:
Hill, James M.
Object Type:
Report
System:
The UNT Digital Library
The Willow Creek Gold Lode District Alaska
From abstract: The gold quartz veins of the Willow Creek district belong to the type of ore deposits that may be expected to continue downward for several thousand feet below the present surface. The veins occur in an essentially homogeneous quartz diorite intrusive mass, batholithic in form ; therefore, the composition of the wall rock plays practically no significant part in the distribution of gold within the veins. The veins were formed partly as fissure fillings and partly by replacement of the wall rock along fractures and of fragments of wall rock caught between the fracture walls. Structurally the deposits are essentially composite lodes, although quartz lenses of considerable size have also been formed.
Date:
1933
Creator:
Ray, James C.
Object Type:
Report
System:
The UNT Digital Library
Geology and Fuel Resources of the Southern Part of the Oklahoma Coal Field: Part 1. The McAlester District, Pittsburg, Atoka, and Latimer Counties
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
Object Type:
Report
System:
The UNT Digital Library
Geology and Fuel Resources of the Southern Part of the Oklahoma Coal Field: Part 2. The Lehigh District Coal, Atoka, and Pittsburg Counties
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 Hartshorne sandstone. McAlester shale, Savanna sandstone, Boggy shale, and Thurman sandstone.
Date:
1937
Creator:
Knechtel, Maxwell M.
Object Type:
Report
System:
The UNT Digital Library
Geology and Fuel Resources of the Southern Part of the Oklahoma Coal Field: Part 3. Quinton-Scipio District
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 district is between 3,000 and 3,300 feet. There are probably unconformities at the base of the Savanna sandstone and at the base of the Thurman sandstone. Overlying the Pennsylvanian formations in parts of the district are unconsolidated sand, gravel, and clay, which in part belong to the Gerty sand, a deposit in an abandoned Quaternary (?) river channel. Other unconsolidated deposits include sand on stream terraces and Recent alluvium.
Date:
1938
Creator:
Dane, C. H.; Rothrock, Howard Eugene & Williams, James Steele
Object Type:
Report
System:
The UNT Digital Library
Geologic Structure and Occurrence of Gas in Part of Southwestern New York: Part 2. Subsurface Structure in Part of Southwestern New York and Mode of Occurrence of Gas in the Medina Group
Abstract: Based on the records of several hundred deep wells, contour maps have been prepared showing the monoclinal structure of part of western New York, and isopach lines have been drawn showing the westward convergence of the rocks. The mode of occurrence of natural gas in the Medina group is briefly discussed. The location of the gas fields has not been determined by structural traps, but rather stratigraphy and lithology are the controlling factors in trapping the gas, which occurs in porous lenses and streaks of sandstone sealed within impermeable beds. This mode of occurrences of the Medina gas makes the search for new fields in western New York more hazardous than in most natural gas regions. As structure has not formed traps for the gas there is no surface guide to favorable sites for testing, and new fields are found by haphazard drilling. It would be helpful, however, when wells are sunk, to study the lithology of the gas-bearing zone by an examination of the drill cuttings and core samples of the sand and to have electrical logs made of the wells to obtain measurements of permeability and porosity. Such tests may indicate the direction of greatest porosity in …
Date:
1941
Creator:
Richardson, G. B. (George Burr)
Object Type:
Report
System:
The UNT Digital Library
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
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, parties in charge of the senior author were assigned during the field seasons of 1934 and 1935 to make a geologic study of Steuben County and parts of the adjacent counties.
Date:
1938
Creator:
Bradley, Wilmot H. & Pepper, J. F.
Object Type:
Report
System:
The UNT Digital Library
Manganese Resources of the Artillery Mountains Region, Mohave County, Arizona
From introduction: The sampling on which the estimates of ore reserves in this report are partly based was done by Lasky and Roberts. The text was written by Lasky, who, except where otherwise noted, is responsible for any descriptions, comments, and conclusions concerning the area beyond the limits of the Hanna holdings, as well as for all statements concerning reserves and recommendations for future prospecting.
Date:
1949
Creator:
Lasky, Samuel G. & Webber, B. N. (Benjamin Nevitt), 1899-
Object Type:
Report
System:
The UNT Digital Library
Geology of the Happy Jack Mine, White Canyon Area, San Juan County, Utah
From abstract: The Happy Jack mine is in the White Canyon area, San Juan County, Utah. Production is from high-grade uranium deposits in the Shinarump conglomerate of Triassic age. The Shinarump strata range from 161/2 to 40 feet in thickness and the lower part of these beds fills an eastward-trending channel that is more than 750 feet wide and 10 feet deep.
Date:
1955
Creator:
Trites, Albert F., Jr. & Chew, Randall T., III
Object Type:
Report
System:
The UNT Digital Library
Mineral Resources of the Sand Dunes Wilderness Study Area, Sweetwater County, Wyoming
From summary: In this report the area studied is referred to as the "wilderness study area" or the "study area". Investigations of mineral occurrences in and near the wilderness study area during 1984 and 1985 indicated high mineral resource potential for undiscovered deposits of coal, moderate potential of oil shale and natural gas, low potential for oil, and identified resources of claystone, shale, and sand.
Date:
1987
Creator:
Merewether, E. A.; Kulik, D. M. & Ryan, George S.
Object Type:
Report
System:
The UNT Digital Library
Mineral Resources of the Honeycomb Buttes Wilderness Study Area, Fremont and Sweetwater Counties, Wyoming
From summary: This report includes field investigations to evaluate the mineral resource potential of the Honeycomb Buttes were conducted during the summer of 1984. Geologic mapping, geochemical sampling, geophysical surveys, stratigraphic and sedimentological studies, and surveys of prospects delineated areas of very low grade placer gold deposits in terrace gravels and low and moderate resource potential for additional similar undiscovered placer gold deposits, low and moderate resource potential for small uranium deposits, moderate resource potential for accumulation of oil and gas, and low resource potential for coal and oil shale.
Date:
1987
Creator:
Patterson, Charles G.; Kulik, D. M.; Loen, Jeffrey S.; Koesterer, M. E. & Scott, David C.
Object Type:
Report
System:
The UNT Digital Library
Mineral Resources of the Ferris Mountains Wilderness Study Area, Carbon County, Wyoming
From abstract: During the present study, all working were examined and representative rock and mineral samples from them were analyzed. Reconnaissance geochemical sampling of rocks, minerals, and stream sediments was conducted for the entire area.
Date:
1988
Creator:
Reynolds, Mitchell W. & Neubert, John T.
Object Type:
Report
System:
The UNT Digital Library
Mineral Resources of the Sweetwater Canyon Wilderness Study Area, Fremont County, Wyoming
From abstract: This report includes field investigations to evaluate the mineral resource potential of the Sweetwater Canyon Wilderness Study Area that were conducted during the summer of 1986.
Date:
1988
Creator:
Day, Warren C.; Hill, Randall H.; Kulik, Dolores M.; Scott, David C. & Hausel, W. Dan
Object Type:
Report
System:
The UNT Digital Library
Mineral Resources of the Buffalo Hump and Sand Dunes Addition Wilderness Study Areas, Sweetwater County, Wyoming
From abstract: This report is on an investigation of the Buffalo Hump and Sand Dunes Addition Wilderness Study Areas for the purpose determining the resource extraction potential.
Date:
1990
Creator:
Gibbons, Anthony B.; Barton, Harlan N.; Kulik, Dolores M. & McDonnell, John R., Jr.
Object Type:
Report
System:
The UNT Digital Library
Mineral Resources of the Adobe Town Wilderness Study Area, Sweetwater County, Wyoming
From abstract: This report concerns the resource extraction potential for the Adobe Town Wilderness Study Area. There are no identified resources in the study area.
Date:
1990
Creator:
Van Loenen, Richard E.; Hill, Randall H.; Bankey, Viki; Bryant, William A. & Kness, R. F.
Object Type:
Report
System:
The UNT Digital Library
Petrography, Mineralogy, and Reservoir Characteristics of the Upper Cretaceous Mesaverde Group in the East-Central Piceance Basin, Colorado
From abstract: Three closely spaced wells drilled through the Upper Cretaceous Mesaverde Group and were extensively cored and logged in order to identify the factors controlling the occurrence and distribution of gas in low-permeability rocks and to improve recovery technology.
Date:
1989
Creator:
Pitman, Janet K.; Pollastro, Richard M. & Spencer, Charles Winthrop
Object Type:
Report
System:
The UNT Digital Library
Gypsum Deposits near Iyoukeen Cove, Chicagof Island, Southeastern Alaska
From abstract: Two deposits of high-grade gypsum are located near tidewater at Iyoukeen Cove, on the northeastern part of Chichagof Island, southeastern Alaska. A group of claims, formerly operated by the Pacific Coast Gypsum Co., was acquired by the Kaiser Gypsum Division of Kaiser Industries, Inc., during World War II. Claims at the other deposit are held by Dave Housel of Juneau and Seattle, Washington, in the name of the Gypsum-Camel group.
Date:
1953
Creator:
Flint, G. M., Jr. & Cobb, E. H.
Object Type:
Report
System:
The UNT Digital Library
Gypsiferous Deposits on Sheep Mountain, Alaska
From abstract: Gypsum-bearing rocks crop out in Gypsum and Yellow Jacket Gulches, on Sheep Mountain, which is about 90 miles northeast of Anchorage, Alaska. The gypsiferous rock occurs in deposits of irregular shape in the greenstone. Both the gypsiferous rock and the greenstone are hydrothermal alteration products of the volcanic rocks of Jurassic age which comprise the bulk of the mountain. Near-surface samples of the gypsiferous rock contained an average of 25 to 30 percent gypsum ; some contained as much as 50 percent. Quartz, alunite, clay, sericite, and pyrite are contaminating constituents of the ore. Six of the largest and most accessible of the gypsum deposits were mapped and calculations show that three of the deposits contain an aggregate of approximately 311,000 short tons of indicated gypsiferous rock and four of the deposits contain 348,000 short tons of inferred gypsiferous rock.
Date:
1951
Creator:
Eckhart, Richard A.
Object Type:
Report
System:
The UNT Digital Library
Effect of Permafrost on Cultivated Fields, Fairbanks Area, Alaska
From introduction: This report describes the destructive effect of permafrost on cultivated fields and delineates the parts of the Fairbanks area which are least suitable for agriculture because of the character of the underlying permafrost. Studies by the author indicate that agriculture will be affected by similar permafrost conditions throughout areas on the north side of the Tanana Valley within 100 miles of Fairbanks.
Date:
1954
Creator:
Péwé, Troy Lewis
Object Type:
Report
System:
The UNT Digital Library