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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.
Object Type:
Report
System:
The UNT Digital Library
Changes in Stratigraphic Nomenclature by the U.S. Geological Survey, 1975
The following document provides a list of publications about geology which relates to nomenclatural changes.
Date:
1976
Creator:
Cohee, George V. & Wright, Wilna B.
Object Type:
Report
System:
The UNT Digital Library
Nomenclature of Precambrian Rocks in Colorado
Abstract: "The Precambrian rocks of Colorado consist of a metaphoric complex more than 1,700 million years in age, three groups of igneous rocks about 1,700, 1,400, and 1,000 million years in age, here designated informal age groups, and two areally restricted units of sedimentary rocks, one between 1,400 and 1,700 million years in age and one between 950 and 1,400 million years. A systematic nomenclature for many of the rocks does not exist, but the present state of knowledge will permit establishment of a comprehensive nomenclature. Numerous formal names that have been applied to elements of the Precambrian assemblage are appraised and classified in a table, and eight names are abandoned."
Date:
1977
Creator:
Tweto, Ogden
Object Type:
Report
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
Object Type:
Report
System:
The UNT Digital Library
Selected Annotated Bibliography on the Geochemistry of Gold
A bibliography of about 200 selected references which contain information on source materials dealing with the genesis and geochemistry of gold and geochemical prospecting for gold deposits.
Date:
1971
Creator:
Cooper, Margaret
Object Type:
Report
System:
The UNT Digital Library
Mineralogy and Geochemistry of Some Belt Rocks, Montana and Idaho
A report which compares 20,000 feet of Belt rocks in the Mission Mountains Primitive Area in Montana with 40,000 feet of Belt rocks in the Pend Oreille area in Idaho and Montana.
Date:
1970
Creator:
Harrison, J. E. & Grimes, D. J.
Object Type:
Report
System:
The UNT Digital Library
Changes in Stratigraphic Nomenclature by the U.S. Geological Survey, 1973
A paper which provides a list of nomenclatural changes. The list also contains publications, the authors, and the names of the reports.
Date:
1975
Creator:
Cohee, George V. & Wright, Wilna R.
Object Type:
Report
System:
The UNT Digital Library
Stratigraphy of the State Bridge Formation in the Woody Creek Quadrangle, Pitkin and Eagle Counties, Colorado
A report about the lithologic units within a red-bed sequence that help to interpret the history and structure of the Woody Creek quadrangle, west-central Colorado.
Date:
1971
Creator:
Freeman, Val I.
Object Type:
Report
System:
The UNT Digital Library
Clinoptilolite of Possible Economic Value in Sedimentary Deposits of the Conterminous United States
A report about clinoptilolite. It is a common zeolite, it is potentially valuable for many industrial and agricultural processes, and it might be useful in controlling water pollution by removing ammonia from wastewater.
Date:
1971
Creator:
Sheppard, Richard A.
Object Type:
Report
System:
The UNT Digital Library
A Manual on Fire Assaying and Determination of the Noble Metals in Geological Materials
A report that provides details about fire assaying techniques to separate and concentrate the noble metals from many varieties of samples.
Date:
1977
Creator:
Haffty, Joseph; Riley, L. B. & Goss, W. D.
Object Type:
Report
System:
The UNT Digital Library
New Cretaceous Formations in the Western Wyoming Thrust Belt
A report about six cretaceous rock formations in the western Wyoming thrust belt.
Date:
1973
Creator:
Rubey, William W.
Object Type:
Report
System:
The UNT Digital Library
Stewart Gulch Tongue—A New Tongue of the Eocene Green River Formation, Piceance Creek Basin, Colorado
A report about mapping in the northern and central parts of the Piceance Creek basin of northwestern Colorado where several relatively thin dominantly marlstone units tongue northward into the Eocene Uinta Formation.
Date:
1977
Creator:
Hail, William J., Jr.
Object Type:
Report
System:
The UNT Digital Library
Coughs Creek Tongue--A New Tongue of the Eocene Green River Formation, Piceance Creek Basin, Colorado
A report about the Coughs Creek Tongue which is a sequence of light-gray marlstone, locally containing beds of sandstone and siltstone, in the upper part of the Green River Formation.
Date:
1975
Creator:
O'Sullivan, Robert B.
Object Type:
Report
System:
The UNT Digital Library
Changes in Stratigraphic Nomenclature by the U.S. Geological Survey, 1974
A list of stratigraphic names adopted, revised, reinstated, and abandoned. The nomenclatural changes pertain to geology.
Date:
1975
Creator:
Cohee, George V. & Wright, Wilna B.
Object Type:
Report
System:
The UNT Digital Library
Index of Generic Names of Fossil Plants 1966-1973
An index of names of new fossil plant genera found in literature between 1966 and 1973 which is now included in the pendium Index of Paleobotany.
Date:
1975
Creator:
Blazer, Anna M.
Object Type:
Report
System:
The UNT Digital Library
Changes in Stratigraphic Nomenclature by the U.S. Geological Survey, 1972
A list of stratigraphic names which are adopted, revised, reinstated, or abandoned are listed. The scheme of the list has been devised simply to facilitate depiction and analyses of the Precambrain history of the United States.
Date:
1974
Creator:
Cohee, George V. & Wright, Wilna B.
Object Type:
Report
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
Object Type:
Report
System:
The UNT Digital Library
Bibliography of the Geology and Hydrology of the Albuquerque Greater Urban Area, Bernalillo and Parts of Sandoval, Santa Fe, Socorro, Torrance, and Valencia Counties, New Mexico
A bibliography which contains over 500 references for the Albuquerque Greater Urban Area (AGUA). The intent is to be comprehensive in scope in the areas of hydrology and geology as well as introductory in other interdisciplinary areas.
Date:
1978
Creator:
Wright, Ann Finley
Object Type:
Report
System:
The UNT Digital Library
Stratigraphic Nomenclature of the Thirtynine Mile Volcanic Field, Central Colorado
A report about the geology, composition, and stratigraphic nomenclature of the thirtynine mile volcanic field in central Colorado.
Date:
1974
Creator:
Epis, Rudy C. & Chapin, Charles E.
Object Type:
Report
System:
The UNT Digital Library
Changes in Stratigraphic Nomenclature by the U.S. Geological Survey, 1969
A report about the stratigraphic nomenclature changes in geology.
Date:
1970
Creator:
Cohee, George V.; Bates, Robert G. & Wright, Wilna B.
Object Type:
Report
System:
The UNT Digital Library
Duration of Hydrothermal Activity at Steamboat Springs, Nevada, From Ages of Spatially Associated Volcanic Rocks
Abstract: Steamboat Springs is a presently active equivalent of epithermal gold-silver ore-forming systems. Hot-spring sinter deposits contain small amounts of gold, silver, mercury, antimony, and arsenic. Hot-spring activity probably started before extrusion of the basaltic andesite of Steamboat Springs. Old sinter from the Steamboat Springs system occurs in gravels above and below the basaltic andesite. Intense hydrothermal alteration, including almost complete replacement by hydrothermal potassium-feldspar, has affected the basaltic andesite. Three plagioclase separates of differing potassium content from fresh basaltic andesite yielded potassium-argon ages of 2.52 to 2.55 m.y. Basaltic andesite almost completely replaced by potassium-feldspar yielded an age of 1.1 m.y. The source of energy for the thermal convection system is probably a large rhyolitic magma chamber that supplied the pumice and from which the rhyolite domes were emplaced. Sanidine and obsidian from four of the rhyolite domes yielded potassium-argon ages of 1.15 to 1.52 m.y. and obsidian from one of the northeastern domes yielded apparent ages of 2.97 and 3.03 m.y. The data indicate that hydrothermal activity has occurred at Steamboat Springs, possibly intermittently, for more than 2-1/2 m.y. These data agree with other radiogenic age studies indicating 1- and 2-m.y. lifetimes for the hydrothermal systems that generate …
Date:
1979
Creator:
Silberman, M. L.; White, D. E.; Keith, T. E. C. & Dockter, R. D.
Object Type:
Report
System:
The UNT Digital Library
Postglacial Volcanic Deposits at Mount Baker, Washington, and Potential Hazards From Future Eruptions
Abstract: Eruptions and other geologic events at Mount Baker during the last 10,000 years have repeatedly affected adjacent areas, especially the valleys that head on the south and east sides of the volcano. Small volumes of tephra were erupted at least four times during the past 10,000 years. Future eruptions like these could cause as much as 35 centimeters of tephra to be deposited at sites 17 kilometers from the volcano, 15 centimeters of tephra to be deposited 29 kilometers from the volcano, and 5 centimeters, 44 kilometers from the volcano. Lava flows were erupted at least twice during the last 10,000 years and moved down two valleys. Future lava flows will not directly endanger people because lava typically moves so slowly that escape is possible. Hot pyroclastic flows evidently occurred during only one period and were confined to the Boulder Creek valley. Such flows can move at speeds of as much as 150 kilometers per hour and can bury valley floors under tens of meters of hot rock debris for at least 15 kilometers from the volcano. Large mudflows, most of which contain hydrothermally altered rock debris, originated at Mount Baker at least eight times during the last 10,000 …
Date:
1978
Creator:
Hyde, Jack H. & Crandell, Dwight Raymond
Object Type:
Report
System:
The UNT Digital Library
Water-Quality Effects on Baker Lake of Recent Volcanic Activity at Mount Baker, Washington
From introduction: The purpose of this report is to evaluate and describe relationships between the volcanic activity on Mount Baker and the possible impacts on Baker Lake water.
Date:
1977
Creator:
Bortleson, Gilbert Carl; Wilson, R. T. & Foxworthy, B. L.
Object Type:
Report
System:
The UNT Digital Library
Stratigraphy and Microfaunas of the Oquirrh Group in the Southern East Tintic Mountains, Utah
Abstract: The Oquirrh Group of Pennsylvanian and Permian age in the southern East Tintic Mountains, Utah, is more than 15,000 feet (4,572 m) thick and consists of an incomplete section of the West Canyon Limestone (Morrowan) 960 feet (293 m) thick, a nearly complete section of the Butterfield Peaks Formation (Atokan(?) and Des Moinesian) about 5,800 feet (1,768 m) thick, a complete section of the Bingham Mine Formation (Missourian) 3,200-3,400 feet thick (975-1,036 m), and a complete section of the newly named Furner Valley Limestone (Missourian to Wolfcampian) 5,000-6,000 feet (1,524-1,829 m) thick. The formations below the Furner Valley Limestone are generally similar to their counterparts in their type areas in the central and southern Oquirrh Mountains but are somewhat thinner and less arenaceous. The Furner Valley Limestone, more than 90 percent carbonate, is apparently unique. Strata of the same age in the Wasatch, Stansbury, Cedar, Hogup, and Promontory Mountains in Utah are all considerably arenaceous; in the southern Oquirrh Mountains in the upper plate of the Midas thrust fault they have been largely removed by erosion. The Oquirrh Group in the East Tintic Mountains is overlain by the Diamond Creek Sandstone; the latter, in turn, is overlain by the …
Date:
1977
Creator:
Morris, H. T.; Douglass, Raymond C. & Kopf, Rudolph W.
Object Type:
Report
System:
The UNT Digital Library