Resource Type

Distribution of Benthic Foraminifers (>125 µm) in the Surface Sediments of the Arctic Ocean (open access)

Distribution of Benthic Foraminifers (>125 µm) in the Surface Sediments of the Arctic Ocean

A report which discusses the distribution of benthic foraminifers in surface sediment samples from 49 box cores collected by the U.S. Geological Survey.
Date: 1999
Creator: Osterman, Lisa E.; Poore, Richard Z. & Foley, Kevin M.
Object Type: Report
System: The UNT Digital Library
[Evolution of Sedimentary Basins/Onshore Oil and Gas Investigations--Santa Maria Province: Chapters Y and Z] (open access)

[Evolution of Sedimentary Basins/Onshore Oil and Gas Investigations--Santa Maria Province: Chapters Y and Z]

From abstract: A complex Neogene history characterizes the offshore Santa Maria basin and the northwest margin of the western Transverse Ranges, California. This history includes the transition from subduction to a transtensional and then transpressional plate boundary, including about 900 of clockwise rotation of the western Transverse Ranges. This report uses seismic reflection data to document the geometry of structures that accommodated this deformation and offshore well data to date and correlate the sediments which were affected by the different tectonic episodes.
Date: 1999
Creator: Sorlien, Christopher C.; Nicholson, Craig; Luyendyk, Bruce P.; Miller, Kate C. & Meltzer, Anne S.
Object Type: Report
System: The UNT Digital Library
Postglacial Lahars and Potential Hazards in the White Salmon River System on the Southwest Flank of Mount Adams, Washington (open access)

Postglacial Lahars and Potential Hazards in the White Salmon River System on the Southwest Flank of Mount Adams, Washington

From introduction: This report describes the results of a study assessing volcanic hazards at Mount Adams Volcano.
Date: 1999
Creator: Vallance, James W.
Object Type: Report
System: The UNT Digital Library
Bedrock Geology of the Paducah 1°x2° CUSMAP Quadrangle, Illinois, Indiana, Kentucky, and Missouri (open access)

Bedrock Geology of the Paducah 1°x2° CUSMAP Quadrangle, Illinois, Indiana, Kentucky, and Missouri

The following report interprets the geologic history of the Paducah quadrangle, focusing on depositional and tectonic evolution, particularly tectonic events that influenced sedimentation.
Date: 1998
Creator: Nelson, W. John
Object Type: Report
System: The UNT Digital Library
Colorado Yule Marble—Building Stone of the Lincoln Memorial (open access)

Colorado Yule Marble—Building Stone of the Lincoln Memorial

A report about the quality and consistency of the Colorado Yule marble mined in Marble, Colorado.
Date: 1998
Creator: McGee, Elaine S.
Object Type: Report
System: The UNT Digital Library
Engineering Geology Applied to the Design and Operation of Underground Coal Mines (open access)

Engineering Geology Applied to the Design and Operation of Underground Coal Mines

A report which discusses in detail how the disciplines of geology and geotechnology, also known as engineering geology, apply to exploration, design, and operation of underground coal mines.
Date: 1998
Creator: Dunrud, Richard C.
Object Type: Report
System: The UNT Digital Library
[Evolution of Sedimentary Basins/Onshore Oil and Gas Investigations--Santa Maria Province: Chapters W and X] (open access)

[Evolution of Sedimentary Basins/Onshore Oil and Gas Investigations--Santa Maria Province: Chapters W and X]

From abstract: Bulletin W is about the deformation of the Mesozoic Franciscan Complex of the Eastern Santa Maria basin in California. Bulletin X is about the regional thermal maturity of the surface rocks of the mentioned basin as well as the Santa Barbara-Ventura basin area in California.
Date: 1998
Creator: Wahl, Arthur D.; Naeser, Nancy D.; Isaacs, Caroline M. & Keller, Margaret A.
Object Type: Report
System: The UNT Digital Library
Laccolith Complexes of Southeastern Utah: Time of Emplacement and Tectonic Setting - Workshop Proceedings (open access)

Laccolith Complexes of Southeastern Utah: Time of Emplacement and Tectonic Setting - Workshop Proceedings

This report summarizes much of the materials presented at the workshop and provides an extensive list of selected references pertaining to geochronology and tectonics of the Colorado Plateau to facilitate further research.
Date: 1998
Creator: Friedman, Jules D. & Huffman, A. Curtis, Jr.
Object Type: Report
System: The UNT Digital Library
Lateral Ramps in the Folded Appalachians and in Overthrust Belts Worldwide—A Fundamental Element of Thrust-Belt Architecture (open access)

Lateral Ramps in the Folded Appalachians and in Overthrust Belts Worldwide—A Fundamental Element of Thrust-Belt Architecture

A report about lateral ramps which are zones where décollements change stratigraphic level along a strike. This report suggests that many cross-strike features may be underlain by lateral ramps that serve to transfer décollements from one stratigraphic level to another in the same manner as frontal ramp, but in a direction normal to the strike of the fold belt.
Date: 1998
Creator: Pohn, Howard A.
Object Type: Report
System: The UNT Digital Library
The Chemical Analysis of Argonne Premium Coal Samples (open access)

The Chemical Analysis of Argonne Premium Coal Samples

A report about methods used to determine concentrations of 67 elements in 8 argonne premium coal samples.
Date: 1997
Creator: Palmer, Curtis A.
Object Type: Report
System: The UNT Digital Library
Geologic Controls of Deep Natural Gas Resources in the United States (open access)

Geologic Controls of Deep Natural Gas Resources in the United States

A report about the natural gas drilling frontier in deep sedimentary basins. Papers presented here are intended to introduce the petroleum community to a set of geologic tools that may be used to predict deep undiscovered natural gas accumulations.
Date: 1997
Creator: Dyman, T. S.; Rice, D. D. & Westcott, P. A.
Object Type: Report
System: The UNT Digital Library
Geologic Studies in the Basin and Range-Colorado Plateau Transition in Southeastern Nevada, Southwestern Utah, and Northwestern Arizona, 1995 (open access)

Geologic Studies in the Basin and Range-Colorado Plateau Transition in Southeastern Nevada, Southwestern Utah, and Northwestern Arizona, 1995

The following report is the second compilation of reports describing the geology of the Basin and Range to Colorado Plateau Transition (BARCO) area.
Date: 1997
Creator: Maldonado, Florian & Nealey, L. David
Object Type: Report
System: The UNT Digital Library
Geology of the Pennsylvanian and Permian Cutler Group and Permian Kaibab Limestone in the Paradox Basin, Southeastern Utah and Southwestern Colorado (open access)

Geology of the Pennsylvanian and Permian Cutler Group and Permian Kaibab Limestone in the Paradox Basin, Southeastern Utah and Southwestern Colorado

From abstract: This report talks about the geology of the Pennsylvanian and Permian Cutler Group that consists of the lower Cutler beds, Cedar Mesa Sandstone, Organ Rock Formation, White Rim Sandstone, and De Chelly Sandstone. The report also talks about the Permian Kaibab Limestone in the Paradox Basin that overlays the Cutler.
Date: 1997
Creator: Condon, Steven M.
Object Type: Report
System: The UNT Digital Library
The Late Triassic Bivalve Monotis in Accreted Terranes of Alaska (open access)

The Late Triassic Bivalve Monotis in Accreted Terranes of Alaska

A report about late triassic bivalves of the genus monotis. So far, 14 kinds of Monotis that differ in species or subspecies level can be recognized from Alaska.
Date: 1997
Creator: Silberling, N. J.; Grant-Mackie, J. A. & Nichols, K. M.
Object Type: Report
System: The UNT Digital Library
Paleomagnetic and 40Ar/39Ar Results from the Grant Intrusive Breccia and Comparison to the Permian Downeys Bluff Sill—Evidence for Permian Igneous Activity at Hicks Dome, Southern Illinois Basin (open access)

Paleomagnetic and 40Ar/39Ar Results from the Grant Intrusive Breccia and Comparison to the Permian Downeys Bluff Sill—Evidence for Permian Igneous Activity at Hicks Dome, Southern Illinois Basin

A report about applying 40Ar/39Ar dating methods, along with other rock techniques, to determine the age of emplacement and the cooling history of the Grant intrusive breccia at Hicks dome in Illinois.
Date: 1997
Creator: Reynolds, Richard L.; Goldhaber, Martin B. & Snee, Lawrence W.
Object Type: Report
System: The UNT Digital Library
Proterozoic Geology of the Granite Village Area, Albany and Laramie Counties, Wyoming, Compared with that of the Sierra Madre and Medicine Bow Mountains of Southeastern Wyoming (open access)

Proterozoic Geology of the Granite Village Area, Albany and Laramie Counties, Wyoming, Compared with that of the Sierra Madre and Medicine Bow Mountains of Southeastern Wyoming

Abstract: "Precambrian metavolcanic rocks north and south of the village of Granite, Wyoming, belong to a sequence of isolated metavolcanic and metasedimentary masses in the Sherman Granite of the southern Laramie Mountains. Similar rocks lie to the west, in the Precambrian uplifts of the southern Medicine Bow Mountains and Sierra Madre. A major fault system, the Cheyenne belt, splits these two ranges into northern and southern domains, and may constitute a suture along which Early Proterozoic islands arcs collided with an Early Proterozoic passive margin. Projection of the Cheyenne belt into the Laramie Mountains suggests that the study area, which is 65 kilometers south of the proposed suture, comprises a distinct volcanic arc with a unique chemistry or age. However, chemistry of the volcanic rocks of the study area as determined as so far does not differ significantly from those of the Medicine Bow Mountains and Sierra Madre."
Date: 1997
Creator: Houston, Robert S. & Marlatt, Gordon
Object Type: Report
System: The UNT Digital Library
The Sedimentary Carbonate-Hosted Giant Bayan Obo REE-Fe-Nb Ore Deposit of Inner Mongolia, China: A Cornerstone Example for Giant Polymetallic Ore Deposits of Hydrothermal Origin (open access)

The Sedimentary Carbonate-Hosted Giant Bayan Obo REE-Fe-Nb Ore Deposit of Inner Mongolia, China: A Cornerstone Example for Giant Polymetallic Ore Deposits of Hydrothermal Origin

A report which describes the overall characteristics of Bayan Obo ore deposit. The paper examines Bayan Obo as a cornerstone example of giant ore deposits of hydrothermal origin.
Date: 1997
Creator: Chao, E. C. T.
Object Type: Report
System: The UNT Digital Library
The Bisbee Group of the Tombstone Hills, Southeastern Arizona: Stratigraphy, Structure, Metamorphism, and Mineralization (open access)

The Bisbee Group of the Tombstone Hills, Southeastern Arizona: Stratigraphy, Structure, Metamorphism, and Mineralization

From introduction: The purpose of this study is to establish a stratigraphic framework of the Bisbee Group in the Tombstone Hills, and to use this stratigraphy to unravel the complex history of folding, faulting, intrusion, and mineralization.
Date: 1996
Creator: Force, Eric R.
Object Type: Report
System: The UNT Digital Library
Burial and Thermal History of the Paradox Basin, Utah and Colorado, and Petroleum Potential of the Middle Pennsylvanian Paradox Formation (open access)

Burial and Thermal History of the Paradox Basin, Utah and Colorado, and Petroleum Potential of the Middle Pennsylvanian Paradox Formation

From abstract: This is a report on the burial and thermal history of the Paradox basin in Utah and Colorado, and the petroleum potential of the middle Pennsylvanian Paradox Formation.
Date: 1996
Creator: Nuccio, Vito F. & Condon, Steven M.
Object Type: Report
System: The UNT Digital Library
Chronology of Late Cretaceous Igneous and Hydrothermal Events at the Golden Sunlight Gold-Silver Breccia Pipe, Southwestern Montana (open access)

Chronology of Late Cretaceous Igneous and Hydrothermal Events at the Golden Sunlight Gold-Silver Breccia Pipe, Southwestern Montana

A report about gold mineralization at the Golden Sunlight breccia pipe, southwestern Montana, is related to emplacement of Late Cretaceous alkali-calcic rhyolite and subsequent collapse of the Belt Supergroup wallrock and rhyolite in the pipe.
Date: 1996
Creator: DeWitt, Ed; Foord, Eugene E.; Zartman, Robert E.; Pearson, Robert C. & Foster, Fess
Object Type: Report
System: The UNT Digital Library
Dissolved Radon and Uranium, and Ground-Water Geochemistry in an Area Near Hylas, Virginia (open access)

Dissolved Radon and Uranium, and Ground-Water Geochemistry in an Area Near Hylas, Virginia

Report describing the results of experiments to test for radon and uranium in ground water from samples taken near Hylas, Virginia.
Date: 1996
Creator: Stanton, Mark R.; Wanty, Richard B.; Lawrence, Errol P. & Briggs, Paul H.
Object Type: Report
System: The UNT Digital Library
Environmental Studies of Mineral Deposits in Alaska (open access)

Environmental Studies of Mineral Deposits in Alaska

A report about metal necessary for economic or industrial development and how the metals are toxic to plants, animals, and humans.
Date: 1996
Creator: Gray, John E. & Sanzolone, Richard F.
Object Type: Report
System: The UNT Digital Library
Fluid Inclusions and Biomarkers in the Upper Mississippi Valley Zinc-Lead District: Implications for the Fluid-Flow and Thermal History of the Illinois Basin (open access)

Fluid Inclusions and Biomarkers in the Upper Mississippi Valley Zinc-Lead District: Implications for the Fluid-Flow and Thermal History of the Illinois Basin

A report about the fluid inclusions in the upper Mississippi valley zinc-lead district. It discusses the consequences of fluid flow.
Date: 1996
Creator: Rowan, E. L. & Goldhaber, M. B.
Object Type: Report
System: The UNT Digital Library
Geologic Processes at the Land Surface (open access)

Geologic Processes at the Land Surface

A report about erosion, deposition, soil formation, and water flow. It discusses hazards such as landslides, dust storms, floods, topsoil loss, ecosystem change, water contamination, and soil contamination.
Date: 1996
Creator: Wilshire, Howard G.; Howard, Keith A.; Wentworth, Carl M. & Gibbons, Helen
Object Type: Report
System: The UNT Digital Library