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  Partner: UNT Libraries Government Documents Department
 Country: United States
 Collection: Technical Report Archive and Image Library
Geology of the Central Roan Plateau Area, Northwestern Colorado

Geology of the Central Roan Plateau Area, Northwestern Colorado

Date: 1992
Creator: Hail, William James, Jr.
Description: From abstract: This report explores the Central Roan Plateau Area of Northwestern Colorado as it includes formations of the Late Cretaceous age, Paleocene age and Eocene age. There are superficial deposits of the Quaternary age and exposed rocks of the Eocene age.
Contributing Partner: UNT Libraries Government Documents Department
Late Paleozoic Structure of the Southern Part of the Uinta Basin, Utah, From Seismic Reflection Data

Late Paleozoic Structure of the Southern Part of the Uinta Basin, Utah, From Seismic Reflection Data

Date: 1991
Creator: Potter, Christopher J.; Tang, Rex & Hainsworth, Timothy J.
Description: From abstract: Seismic reflection data from the southern part of the Uinta basin near Price, Utah reveal a network of late Paleozoic faults that produced abrupt variations in stratigraphic thicknesses in a structurally complex 30-mi-wide northwest-southeast-trending trough.
Contributing Partner: UNT Libraries Government Documents Department
Facies Analysis, Genetic Sequences, and Paleogeography of the Lower Part of the Minturn Formation (Middle Pennsylvanian), Southeastern Eagle Basin, Colorado

Facies Analysis, Genetic Sequences, and Paleogeography of the Lower Part of the Minturn Formation (Middle Pennsylvanian), Southeastern Eagle Basin, Colorado

Date: 1992
Creator: Karachewski, John A.
Description: From abstract: Siliciclastic and minor carbonate rocks of the lower part of the Middle Pennsylvanian Minturn Formation of north-central Colorado were deposited in alluvial-fan, braidplain, Gilbert-delta, shoreline, and paralic, and offshore-marine environments. These strata can be divided into twelve genetic sequences that are generally bounded by transgressive surfaces of erosion or paralic flooding surfaces, and are characterized by thin and thick transgressive units. This report examines the paleogeography of this area.
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Stratigraphy of the Eocene Part of the Green River Formation in the South-Central Part of the Uinta Basin, Utah

Stratigraphy of the Eocene Part of the Green River Formation in the South-Central Part of the Uinta Basin, Utah

Date: 1992
Creator: Remy, Robert R.
Description: From abstract: Seventeen stratigraphic sections totalling 4,514.3 m were investigated and previous reports studied in order to clarify and illustrate the stratigraphy of most of the Eocene part of the fluvial and lacustrine Green River Formation in the south-central part of the Uinta basin of Utah.
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Surface Vitrinite Reflectance Study of the Uinta and Piceance Basins and Adjacent Areas, Eastern Utah and Western Colorado: Implications for the Development of Laramide Basins and Uplifts

Surface Vitrinite Reflectance Study of the Uinta and Piceance Basins and Adjacent Areas, Eastern Utah and Western Colorado: Implications for the Development of Laramide Basins and Uplifts

Date: 1993
Creator: Johnson, Ronald Carl & Nuccio, Vito F.
Description: From abstract: A study of mean random vitrinite reflectance of surface and near-surface samples was conducted in western Colorado and eastern Utah in order to better understand the subsidence and thermal histories of the Laramide-age Uinta and Piceance basins and to estimate the the thickness of overburden removed from the two basins. The history of uplift on some of the adjacent Laramide uplifts were also studied.
Contributing Partner: UNT Libraries Government Documents Department
Stratigraphy of the Mississippian System, South-Central Colorado and North-Central New Mexico

Stratigraphy of the Mississippian System, South-Central Colorado and North-Central New Mexico

Date: 1992
Creator: Armstrong, Augustus K.; Mamet, Bernard L. & Repetski, John E.
Description: From abstract: In the Sawatch, Mosquito and Front Ranges of central Colorado and the Sangre de Cristo Mountains of south-central Colorado, Tournaisian beds of the Mississippian Leadville Limestone overlie rocks of Early Mississippian and Late Devonian age. In the Sangre de Cristo Mountains in north-central New Mexico, the oldest beds are the Tournaisian (zone 9) Espiritu Santo Formation. In west-central New Mexico, in the Magdalena, Lemitar, and Ladron Mountains, the Kelly Limestone of Tournaisian and Visean age rests unconformably on Proterozoic metamorphic and igneous rocks. This report examines the stratigraphy of this area.
Contributing Partner: UNT Libraries Government Documents Department
Geometry and Structural Evolution of Gilsonite Dikes in the Eastern Uinta Basin, Utah

Geometry and Structural Evolution of Gilsonite Dikes in the Eastern Uinta Basin, Utah

Date: 1993
Creator: Verbeek, Earl R. & Grout, Marilyn A.
Description: From abstract: This report is an in-depth observation of the structural evolution of gilsonite dikes in the eastern Uinta basin of Utah.
Contributing Partner: UNT Libraries Government Documents Department
Structure and Stratigraphy of Upper Cretaceous and Paleogene Strata (North Horn Formation), Eastern San Pitch Mountains, Utah: Sedimentation at the Front of the Sevier Orogenic Belt

Structure and Stratigraphy of Upper Cretaceous and Paleogene Strata (North Horn Formation), Eastern San Pitch Mountains, Utah: Sedimentation at the Front of the Sevier Orogenic Belt

Date: unknown
Creator: Lawton, Timothy Frost; Hobbs, Robert S.; Talling, Peter J.; Trexler, James Hugh, Jr.; Weiss, Malcolm P. & Burbank, Douglas West
Description: From abstract: This report describes the North Horn Formation in the eastern part of the San Pitch Mountains of Utah was deposited in nonmarine environments that included alluvial fans, varied fluvial and overbank settings, and lacustrine settings.
Contributing Partner: UNT Libraries Government Documents Department
[Evolution of Sedimentary Basins--San Juan Basin: Chapters B-D]

[Evolution of Sedimentary Basins--San Juan Basin: Chapters B-D]

Date: 1989
Creator: Dubiel, Russell F.; Ridgley, Jennie L.; Armstrong, Augustus K. & Holcomb, Lee D.
Description: From abstract: This report describes the depositional environments of the Chinle Formation that was deposited in a complex fluvial-deltaic-lacustrine system in the area of the present-day eastern San Juan basin and Chama basin. Lithofacies include conglomerate and planar- and trough-crossbedded sandstone; bentonitic mudstone and sandstone; black, organic carbon-rich mudstone; large-scale, trough crossstratified siltstone, sandstone, and mudstone; and thickbedded, bioturbated, fine-grained sandstone and siltstone.
Contributing Partner: UNT Libraries Government Documents Department
Geochemistry of Mariano Lake-Lake Valley Cores, McKinley County, New Mexico

Geochemistry of Mariano Lake-Lake Valley Cores, McKinley County, New Mexico

Date: 1990
Creator: Leventhal, Joel S.
Description: From abstract: The primary goal of the U.S. Geological Survey-Bureau of Indian Affairs drilling project in the Upper Jurassic Morrison Formation in McKinley County, New Mexico, was to better understand the relationship between host-rock stratigraphy and uranium mineralization. As part of this project, geochemical studies of approximately 280 samples from 8 cores and 1 outcrop were undertaken; samples from 4 of the cores show uranium enrichment. Geochemical relationships between samples of weathered outcrop, oxidized core, reduced (unmineralized) core, and ore-bearing core were contrasted by comparison of element abundances.
Contributing Partner: UNT Libraries Government Documents Department
[Evolution of Sedimentary Basins--San Juan Basin: Chapters J and K]

[Evolution of Sedimentary Basins--San Juan Basin: Chapters J and K]

Date: 1992
Creator: Aubrey, William M. & Skipp, Gary
Description: 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.
Contributing Partner: UNT Libraries Government Documents Department
Stratigraphy, Structure, and Paleogeography of Pennsylvanian and Permian Rocks, San Juan Basin and Adjacent Areas, Utah, Colorado, Arizona, and New Mexico

Stratigraphy, Structure, and Paleogeography of Pennsylvanian and Permian Rocks, San Juan Basin and Adjacent Areas, Utah, Colorado, Arizona, and New Mexico

Date: 1993
Creator: Huffman, A. Curtis, Jr. & Condon, Steven M.
Description: From introduction: The investigation described herein is a part of the USGS Evolution of Sedimentary Basins Program. This report concerns the Pennsylvanian and Permian stratigraphic framework, structural development, and paleogeography of the San Juan Basin.
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Landslides and Debris Flows in Ephraim Canyon, Central Utah

Landslides and Debris Flows in Ephraim Canyon, Central Utah

Date: 1989
Creator: Baum, Rex L. & Fleming, Robert W.
Description: From Abstract: This report describes landslides and debris flows occurred in bedrock and surficial deposits of Ephraim Canyon, on the west side of the Wasatch Plateau, in central Utah, during the spring of 1983.
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Kinematics of the Aspen Grove Landslide, Ephraim Canyon, Central Utah

Kinematics of the Aspen Grove Landslide, Ephraim Canyon, Central Utah

Date: 1993
Creator: Baum, Rex L.; Fleming, Robert W. & Johnson, Arvid M.
Description: From Abstract: This report describes the kinematics of the Aspen Grove landslide of Ephraim Canyon in central Utah that moved during the spring and summer months of 1983-86.
Contributing Partner: UNT Libraries Government Documents Department
Complete Bouguer and Isostatic Residual Gravity Maps of the Anadarko Basin, Wichita Mountains, and Surrounding Areas, Oklahoma, Kansas, Texas, and Colorado

Complete Bouguer and Isostatic Residual Gravity Maps of the Anadarko Basin, Wichita Mountains, and Surrounding Areas, Oklahoma, Kansas, Texas, and Colorado

Date: 1992
Creator: Robbins, Stephen L. & Keller, G. Randy, Jr.
Description: From abstract: This report contains the complete Bouger and isostatic residual gravity maps of the Anadarko basin, Wichita Mountains, and surrounding areas on parts of Oklahoma, Kansas, Texas and Colorado that were compiled using gravity data from 11,023 stations.
Contributing Partner: UNT Libraries Government Documents Department
Archean and Early Proterozoic Tectonic Framework of North-Central United States and Adjacent Canada

Archean and Early Proterozoic Tectonic Framework of North-Central United States and Adjacent Canada

Date: 1995
Creator: Sims, P. K. (Paul Kibler), 1918-2011
Description: From abstract: This report contains the analysis of the southern part of the Canadian Shield and the subsurface of the southern interior platform where they comprise two Archean cratons and three Early Proterozoic collisional orogens.
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Cambrian Through Mississippian Rocks of the Powder River Basin, Wyoming, Montana, and Adjacent Areas

Cambrian Through Mississippian Rocks of the Powder River Basin, Wyoming, Montana, and Adjacent Areas

Date: 1993
Creator: Macke, David L.
Description: From abstract: This report describes Cambrian through Mississippian rocks in the Powder River Basin representing five depositional sequences that reflect both the biological evolution and the tectonic development of western North America.
Contributing Partner: UNT Libraries Government Documents Department
The Lance Formation: Petrography and Stratigraphy, Powder River Basin and Nearby Basins, Wyoming and Montana

The Lance Formation: Petrography and Stratigraphy, Powder River Basin and Nearby Basins, Wyoming and Montana

Date: 1992
Creator: Connor, Carol Waite
Description: From abstract: The uppermost Cretaceous Lance Formation was studied in the Powder River Basin and nearby basins of Wyoming and Montana. The Lance Formation is overlain by the continental Paleocene Fort Union Formation. This report is a petrography and stratigraphy study on these basins.
Contributing Partner: UNT Libraries Government Documents Department
Sedimentology and Depositional History of the Lower Paleocene Tullock Member of the Fort Union Formation, Powder River Basin, Wyoming and Montana

Sedimentology and Depositional History of the Lower Paleocene Tullock Member of the Fort Union Formation, Powder River Basin, Wyoming and Montana

Date: 1993
Creator: Brown, Janet L.
Description: From abstract: This report is a study on the history of sedimentology and deposition of the lower Paleocene Tullock Member of the Fort Union Formation, Powder River Basin, Wyoming and Montana while looking at the geometry and sedimentary structures.
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Gravity and Aeromagnetic Studies of the Powder River Basin and Surrounding Areas, Southeastern Montana, Northeastern Wyoming, and Western South Dakota

Gravity and Aeromagnetic Studies of the Powder River Basin and Surrounding Areas, Southeastern Montana, Northeastern Wyoming, and Western South Dakota

Date: 1994
Creator: Robbins, Stephen L.
Description: From abstract: This report contains complete Bouguer anomaly, isostatic residual anomaly, and horizontal gradient anomaly gravity maps of the Powder River Basin and surrounding areas in southeastern Montana, northeastern Wyoming, and western South Dakota were compiled using gravity data from 21,528 stations. A total-intensity anomaly aeromagnetic map with 3 mile spaced east-west flight-lines is also presented. Also included is an analysis of these maps and data, focusing on gravity and aeromagnetic studies.
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Fluvial Architecture of the Lower Cretaceous Lakota Formation, Southwestern Flank of the Black Hills Uplift, South Dakota

Fluvial Architecture of the Lower Cretaceous Lakota Formation, Southwestern Flank of the Black Hills Uplift, South Dakota

Date: 1995
Creator: Dahlstrom, David J. & Fox, J. E.
Description: From introduction This report describes large-scale depositional units referred to as architectural elements, interpreted from outcrops of three distinct fluvial sandstone units of the Lakota Formation in the southwestern Black Hills area of Custer and Fall River Counties, South Dakota. These fluvial deposits formed near the end of an episode of continental deposition that began when the Jurassic Sundance sea regressed from the region and ended when the Early Cretaceous Skull Creek sea encroached from the north in Albian time.
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Stratigraphy and Structure of the Seaman Range and Fox Mountain, Lincoln and Nye Counties, Nevada

Stratigraphy and Structure of the Seaman Range and Fox Mountain, Lincoln and Nye Counties, Nevada

Date: 1992
Creator: Hurtubise, D. O. & Du Bray, E. A.
Description: From introduction: This report describes the stratigraphy and structure of the Seaman Range in southeastern Nevada, consisting of three main structural blocks that are bounded by major normal faults and adjacent valley fills.
Contributing Partner: UNT Libraries Government Documents Department
Regional Potential of Selected Paleozoic Carbonate Units in the Northern Midcontinent for Undiscovered Mississippi Valley-Type Deposits

Regional Potential of Selected Paleozoic Carbonate Units in the Northern Midcontinent for Undiscovered Mississippi Valley-Type Deposits

Date: 1995
Creator: Pratt, Walden P.
Description: From abstract: This report attempts to identify areas where geologic conditions for the Mississippi Valley-type (MVT) deposits are favorable.
Contributing Partner: UNT Libraries Government Documents Department
[Evolution of Sedimentary Basins/Onshore Oil and Gas Investigations--Santa Maria Province: Chapters W and X]

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

Date: 1998
Creator: Wahl, Arthur D.; Naeser, Nancy D.; Isaacs, Caroline M. & Keller, Margaret A.
Description: 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.
Contributing Partner: UNT Libraries Government Documents Department
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