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Stratigraphy and Paleontology of the Upper Carboniferous Rocks of the Kansas Section
From introduction: This report presents the results of reconnaissances on the coal formations of the area of Kansas south of the Kansas River.
Date:
1903
Creator:
Adams, George I.; Girty, George Herbert & White, David
System:
The UNT Digital Library
Beryllium Deposits of the Mount Antero Region, Chaffee County, Colorado
Report discussing the possible existence of pegmatites containing beryllium deposits in the granite stock in the vicinity of Mount Antero and White Mountain, Chaffee County, Colorado.
Date:
May 1951
Creator:
Adams, John W.
System:
The UNT Digital Library
Geology and Coal Resources of the Salyersville North Quadrangle, Magoffin, Morgan, and Johnson Counties, Kentucky
From introduction: The U.S. Geological Survey has conducted investigations of the geology and coal resources of the area in and adjacent to the Salyers-ville North quadrangle in the Eastern Kentucky coal field (fig. 7). The Salyersville North quadrangle lies between lat. 3745' and 37052'30'' N., and long. 8300' and 83 07'30'' E.; it is a 71/2-minute quadrangle in the southeast quarter of the Dingus 15-minute area which also includes the Dingus, Lenox, and White Oak 7 -minute quadrangles (fig. 8). The present report is the second for the 15-minute Dingus area; a report by Adkison (1957) has been published for the White Oak quadrangle and a third report is in preparation for the Lenox quadrangle. Other published reports for quadrangles in the vicinity are those by Englund (1955) for Cannel City to the west; Bergin (1962) for Seitz to the southwest; and Hauser (1953) for Paintsville to the east.
Date:
1963
Creator:
Adkison, W. L. & Johnston, J. E.
System:
The UNT Digital Library
Availability and Chemical Quality of Water From Surficial Aquifers in Southwest Minnesota
From introduction: The objectives of the study were to (1) determine the areal extent, thickness, and water-yielding capability of aquifers in the surficial deposits, (2) estimate the amount of water in storage in the aquifers, (3) determine the chemical quality of water in the aquifers and, (4) establish observation wells to monitor the effects of ground-water development on water levels and storage in the aquifers.
Date:
1983
Creator:
Adolphson, D. G.
System:
The UNT Digital Library
Water Resources of the Maunabo Valley, Puerto Rico
Report providing information about the water resources of the Munabo Valley in southeastern Puerto Rico, including the principal source of water, chemical composition, hydraulic conductivities, average transmissivity, and suggestions for water supplementation.
Date:
May 1977
Creator:
Adolphson, D. G.; Seijo, M. A. & Robison, T. M.
System:
The UNT Digital Library
Summary of Work on the Mineralogy and Petrography of Southeast Phosphates Through April 1952
From abstract: "In this report the mineralogy and uranium contents of southeast phosphates are discussed with reference to the lithologic units of the Hawthorn and Bone Valley formations and to waste slimes. In addition, the immediate problem of sampling leached-zone rock for process development studies is discussed and plans for future work (fiscal 1953) are presented."
Date:
November 1952
Creator:
Altschuler, Z. S.
System:
The UNT Digital Library
The Geochemistry of Uranium in Apatite and Phosphorite
The following report is preliminary in nature, discussing and analyzing traces of uranium in apatite and phosphorite.
Date:
October 1957
Creator:
Altschuler, Z. S.; Clarke, R. S., Jr. & Young, E. J.
System:
The UNT Digital Library
Ground Water in the Lajas Valley, Puerto Rico
Abstract: Lajas Valley is plagued with problems of salinity and waterlogging the soils. Use of brackish (500 milligrams per liter) irrigation compounded ground water for the problem until an irrigation-drainage system was constructed in 1955. Lajas is an alluvium-filled limestone highlands. The alluvium, mostly clay and as much 300 feet (90 meters) thick, contains brackish ground water except in the recharge areas located along the foothills...Results from a digital model show that a network of discharge wells could alleviate waterlogging of the soils in the artesian area.
Date:
March 1977
Creator:
Anderson, Henry R.
System:
The UNT Digital Library
Index of Generic Names of Fossil Plants, 1820-1965
An index of fossil names between 1820 and 1965. Diatoms, spores, and pollen are excluded from this index.
Date:
1970
Creator:
Andrews, Henry N.
System:
The UNT Digital Library
Eastern and Central Montana as a Possible Source Area of Uranium
From abstract: Geologic settings are recognized in central and eastern Montana and in a few places in southwestern Montana that elsewhere are similar to the settings for the occurrence of uranium deposits. Several specific areas in Montana seem favorable for the occurrence of uranium.
Date:
April 1956
Creator:
Armstrong, Frank C.
System:
The UNT Digital Library
The Bannock Thrust Zone Southeastern Idaho
Abstract: The Bannock overthrust in southeastern Idaho and northcentral Utah was originally described by Richards and Mansfield (1912) as a single large thrust fault that formed at the close of the Laramide orogeny and was folded by renewed compression near the end of Pliocene time. Later Mansfield expanded and revised his interpretation of the Bannock overthrust so that at least the northern part of the overthrust was thought to be a thrust zone in which the individual faults originated in a folded sole thrust. Detailed mapping in areas critical to Richards and Mansfield's interpretations has shown that the faults thought by them to be parts of one large thrust are separate faults, and that, although some of the thrust surfaces are curved, they were not folded in Pliocene time but probably were folded during a late stage of the thrusting. Extensions of the Bannock thrust to the north, south, east, and west based upon extrapolation of a single large folded thrust surface are not warranted. The Bannock overthrust is reinterpreted as a westward-dipping imbricate thrust zone possibly several tens of miles wide extending at least from southwestern Montana to north-central Utah. It is recommended that the name "Bannock overthrust" no …
Date:
1963
Creator:
Armstrong, Frank C. & Cressman, Earle Rupert
System:
The UNT Digital Library
Geohydrology of the Meadowbrook Artificial-Recharge Site at East Meadow, Nassau County, New York
Purpose and scope: The Meadowbrook artificial-recharge project, a cooperative effort between the U.S. Geological Survey and the Nassau County Department of Public Works (NCDPW) since 1975, is intended to demonstrate the feasibility of using reclaimed wastewater to replenish and improve the quality of Long Island's ground water. This report presents the results of geologic, hydrologic, and hydrochemical studies that were done at the Meadowbrook artificial-recharge site to define conditions prevailing before the start of recharge operations.
Date:
1983
Creator:
Aronson, David A.; Lindner, Juli B. & Katz, Brian G.
System:
The UNT Digital Library
[Evolution of Sedimentary Basins--San Juan Basin: Chapters J and K]
From introduction to each respective report: Report J summarizes the results of several studies concerning the stratigraphy and sedimentology of uppermost Jurassic to lowermost Upper Cretaceous rocks in the San Juan basin and adjacent areas. Report K describes using X-ray diffraction techniques to determine the occurrence and distribution of clay minerals in the upper part of the Brushy Basin Member and in the Burro Canyon Formation in the Four Corners area.
Date:
1992
Creator:
Aubrey, William M. & Skipp, Gary
System:
The UNT Digital Library
Coal Resources of the United States
A report about the United States's coal supply. The U.S. has 25 percent of the world's identified coal resources and about 20 percent of the world's estimated total coal resources.
Date:
January 1, 1974
Creator:
Averitt, Paul
System:
The UNT Digital Library
Bibliography and Index of U.S. Geological Survey Publications Relating to Coal, 1882-1970
A bibliography that lists about 1,300 U.S. Geological Survey publications related to coal and published prior to January 1, 1971.
Date:
1972
Creator:
Averitt, Paul & Lopez, Lorreda
System:
The UNT Digital Library
Reconnaissance of Geology and Uranium Occurrences of the Upper Alamosa Creek Valley : Catron County, New Mexico
From abstract: "The Crevasse Canyon formation and Point Lookout(?) sandstone of Late Cretaceous age and the Baca and Datil formations of Tertiary age were mapped in an area of 168 square miles in the upper Alamosa Creek Valley along the northern edge of the Datil Mountains, Catron County, N. Mex. The investigation was made to determine the potentialities of the area for producing uranium and to learn the geologic controls for the concentration of uranium."
Date:
April 1957
Creator:
Bachman, George O.; Baltz, Elmer H. & Griggs, Roy L.
System:
The UNT Digital Library
Zinc and Lead Deposits of Northwestern Illinois
From introduction: The subject of this paper is the district of the extreme northwestern portion of Illinois, included in the upper Mississippi Valley containing zinc and lead.
Date:
1905
Creator:
Bain, Harry Foster
System:
The UNT Digital Library
Zinc and Lead Deposits of the Upper Mississippi Valley
From introduction: This report investigates the zinc and lead deposits of the Upper Mississippi Valley.
Date:
1906
Creator:
Bain, Harry Foster
System:
The UNT Digital Library
Geology of the Monument Valley-Navajo Mountain Region, San Juan County, Utah
From abstract: The Monument Valley-Navajo Mountain region is part of the Colorado Plateau and includes about 1,100 square miles in San Juan County, southeastern Utah, lying between the San Juan and Colorado Rivers on the north and the Utah-Arizona State line on the south. Included in the region are Navajo Mountain, the Rainbow Natural Bridge, and a part of the picturesque Monument Valley.
Date:
1936
Creator:
Baker, Arthur A.
System:
The UNT Digital Library
Effects of Ground-Water Development on the Proposed Palmetto Bend Dam and Reservoir in Southeast Texas
Abstract: Ground water continues to discharge into the Navidad and Lavaca Rivers by seepage out-flow even though large amounts of ground water are pumped for irrigation. Although a reduction in streamflow probably has occurred, a complete loss of the low flow of the streams by infiltration to a lowered water table seems remote. The large ground-water withdrawals will continue to cause land-surface subsidence, which will range from 0.012 foot to more than 0.026 foot per year. A minimum of about 0.013 to 0.015 foot of annual subsidence at the upper ends of the proposed reservoir and a maximum of about 0.019 foot near the dam site can be expected. Structural failures of manmade features have not occurred from the subsidence, but regional changes in the land slope have occurred and will continue . Numerous fault traces have been mapped in the area, but most of the faults are inactive. If movement along the fault planes should occur, the vertical displacement probably will not exceed the total subsidence.
Date:
May 1973
Creator:
Baker, E. T., Jr. & Follett, C. R.
System:
The UNT Digital Library
Distribution and Thickness of Salt in the Paradox Basin of Southwestern Colorado and Southeastern Utah, A Preliminary Report
The following report covers investigation work done on the distribution of thick deposits of salt that had occurred in the Paradox member of the Hermosa formation of Pennsylvanian age in an area nearly 12,000 square miles of southwestern Colorado and southeastern Utah.
Date:
February 1957
Creator:
Baltz, Elmer H.
System:
The UNT Digital Library
Distribution and thickness of salt in the Paradox basin of southwestern Colorado and southeastern Utah: a preliminary report
A report regarding the distribution and thickness of salt in the paradox basin of southeastern colorado and southeastern Utah. This report concerns work done on behalf of the Division of research of the U.S. Atomic Energy Commission.
Date:
February 1957
Creator:
Baltz, Elmer Harold
System:
The UNT Digital Library
Hydrothermal Alteration in the Mount Hood Area, Oregon
A report which describes the hydrothermal alteration of numerous outcrop samples collected in the vicinity of Mount Hood, as well as drill cuttings from 13 of the geothermal drill holes for which we were able to obtain sample splits.
Date:
1993
Creator:
Bargar, Keith E.; Keith, Terry E. C. & Beeson, Melvin H.
System:
The UNT Digital Library
Mineral and Energy Resources of the Roswell Resource Area, East-Central New Mexico
The following report presents geological data taken from studies made on the mineral and energy resources in the surface and subsurface within the Roswell Resource Area in east-central New Mexico.
Date:
1995
Creator:
Bartsch-Winkler, S. & Donatich, Alessandro J.
System:
The UNT Digital Library