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Geology and Ore Deposits of the Breckenridge District, Colorado
Study of the geology and ore deposits of the Breckenridge District in Colorado.
Date:
1911
Creator:
Ransome, Frederick Leslie
Object Type:
Report
System:
The UNT Digital Library
Contributions to Economic Geology (Short Papers and Preliminary Reports), 1913: Part 2 -- Mineral Fuels
From introduction: This report determines the geographic distribution and thickness of the bituminous shale, or oil shale, or tar shale of the Green River formation of the Uinta Basin in Colorado and Utah.
Date:
1915
Creator:
Campbell, Marius R. & White, David
Object Type:
Report
System:
The UNT Digital Library
Geology and Mineralogy of the J.J. Mine, Jo Dandy Area, Montrose County, Colorado
Introduction: Detailed geologic mine mapping and sampling of the J.J. mine in the Jo dandy area, Montrose County, Colo., were undertaken to study a vanadium-uranium ore body in terms of the physical relationships of ore to host rock, the paragenetic sequence of ore minerals, and the sequential development of an oxidized suite of ore minerals from unoxidized ore.
Date:
September 1955
Creator:
Elston, Donald Parker & Botinelly, Theodore
Object Type:
Report
System:
The UNT Digital Library
The Anadarko Basin (of parts of Oklahoma, Texas, Kansas, and Colorado)
Abstract: This report is a synthesis of published and unpublished data on the rocks of the Anadarko basin.
Date:
March 1964
Creator:
MacLachlan, M. E.
Object Type:
Report
System:
The UNT Digital Library
Shorter Contributions to General Geology, 1941-42
Preface: The author of this paper gives a thorough description of a complex of very unusual igneous rocks and associated hydrothermal deposits.
Date:
1942
Creator:
Geological Survey (U.S.)
Object Type:
Report
System:
The UNT Digital Library
Geology of Pre-Pennsylvanian Rocks in the Paradox Basin and Adjacent Areas, Southeastern Utah and Southwestern Colorado
From abstract: This report is about the geology of pre-Pennsylvanian rocks in the Paradox basin and its adjacent areas--such as the Mississippian strata, the Upper Devonian rocks, and the Upper Cambrian--in southeastern Utah and southwestern Colorado.
Date:
1995
Creator:
Condon, Steven M.
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
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
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
[Evolution of Sedimentary Basins--Uinta and Piceance Basins: Chapters A-C]
From introduction: The goal of this basin analysis study is to reconstruct the fluvial depositional system of the upper part of the Pennsylvanian and Permian Maroon Formation in the Eagle basin, northwest Colorado.
Date:
1987
Creator:
Johnson, Samuel Y.
Object Type:
Report
System:
The UNT Digital Library
Geologic History and Hydrocarbon Potential of Late Cretaceous-Age, Low-Permeability Reservoirs, Piceance Basin, Western Colorado
From abstract: The Piceance basin of western Colorado contains large reserves of natural gas in low-permeability reservoirs of the Late Cretaceous-age Mesaverde Formation or Mesaverde Group. The gas accumulation can be divided into three general zones: a zone of surface-water invasion that extends inward a few miles from present outcrops, a gas-and-waterbearing zone that extends 10-20 miles inward from the water-bearing zone, and a central, predominantly gasbearing zone.
Date:
1989
Creator:
Johnson, Ronald Carl
Object Type:
Report
System:
The UNT Digital Library
Depositional Controls on the Late Campanian Sego Sandstone and Implications for Associated Coal-Forming Environments in the Uinta and Piceance Basins
From abstract: This report concerns a comparison of detailed measured sections and geophysical well-log profiles through the Sego allows subsurface identification of both depositional cycles and lateral facies changes.
Date:
1989
Creator:
Franczyk, Karen J.
Object Type:
Report
System:
The UNT Digital Library
The Frontier Formation and Associated Rocks of Northeastern Utah and Northwestern Colorado
From abstract: The Frontier Formation of the Mancos Group in northeastern Utah and northwesternmost Colorado (proposed new rank designations; formerly known as the Frontier Sandstone Member of the Mancos Shale) consists of several facies of marine and nonmarine rocks of Late Cretaceous (Turonian) age that grade eastward into totally marine rocks in easternmost Utah and northwestern Colorado.
Date:
1990
Creator:
Molenaar, C. M. & Wilson, B. W.
Object Type:
Report
System:
The UNT Digital Library
Sedimentology, Mineralogy, Palynology, and Depositional History of Some Uppermost Cretaceous and Lowermost Tertiary Rocks Along the Utah Book and Roan Cliffs East of the Green River
From abstract: This report analyzes the 4-5 million years of depositional history of the Upper Cretaceous Lower Tertiary Rocks along the Green River.
Date:
1990
Creator:
Franczyk, Karen J.; Nichols, Douglas J. & Pitman, Janet K.
Object Type:
Report
System:
The UNT Digital Library
Middle Cretaceous Stratigraphy on the South and East Sides of the Uinta Basin, Northeastern Utah and Northwestern Colorado
From abstract: Middle Cretaceous rocks (Aptian to Coniacian) on the south side of the Uinta Basin include the nonmarine Cedar Mountain Formation and Dakota Sandstone and the lower part of the overlying marine Mancos Shale. This report examines the rocks contained within this area of the basin.
Date:
1991
Creator:
Molenaar, C. M. & Cobban, William Aubrey
Object Type:
Report
System:
The UNT Digital Library
Carbon Dioxide in Mississippian Rocks of the Paradox Basin and Adjacent Areas, Colorado, Utah, New Mexico, and Arizona
From abstract: This report is about six gas samples that were obtained from the Mississippian Leadville Limestone in the McElmo field, Colorado, and the Lisbon field, Utah. These samples were recorded to contain a high reading of carbon dioxide and the report investigates these results.
Date:
1995
Creator:
Cappa, James A. & Rice, Dudley D.
Object Type:
Report
System:
The UNT Digital Library
Detailed Mineral and Chemical Relations in Two Uranium-Vanadium Ores
From introduction: This report details mineral and chemical relations in two uranium-vanadium ores of the Colorado Plateau.
Date:
August 1956
Creator:
Garrels, Robert M.; Larsen, E. S., III; Pommer, Alfred M. & Coleman, Robert Griffin
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
[Evolution of Sedimentary Basins--Uinta and Piceance Basins: Chapters H and I]
From abstract: Analysis of vitrinite reflectance profiles and surfaces of equal vitrinite reflectance in the southeastern part of the Piceance basin, northwestern Colorado, indicates that burial histories for the Divide Creek anticline and the Grand Hogback are different from those for adjacent synclines. These two positive structures probably reached their present-day thermal maturity before late Eocene folding and before the end of the Laramide orogeny. In contrast, adjacent synclines did not reach their present-day thermal maturity until the end of the Laramide orogeny, or possibly later.
Date:
1989
Creator:
Nuccio, Vito F.; Johnson, Ronald Carl & Johnson, Samuel Y.
Object Type:
Report
System:
The UNT Digital Library
Geology of the Central Roan Plateau Area, Northwestern Colorado
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.
Date:
1992
Creator:
Hail, William James, Jr.
Object Type:
Report
System:
The UNT Digital Library
Facies Analysis, Genetic Sequences, and Paleogeography of the Lower Part of the Minturn Formation (Middle Pennsylvanian), Southeastern Eagle Basin, Colorado
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.
Date:
1992
Creator:
Karachewski, John A.
Object Type:
Report
System:
The UNT Digital Library
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
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.
Date:
1993
Creator:
Johnson, Ronald Carl & Nuccio, Vito F.
Object Type:
Report
System:
The UNT Digital Library
Stratigraphy of the Mississippian System, South-Central Colorado and North-Central New Mexico
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.
Date:
1992
Creator:
Armstrong, Augustus K.; Mamet, Bernard L. & Repetski, John E.
Object Type:
Report
System:
The UNT Digital Library
Radioactivity and Uranium Content of the Sharon Springs Member of the Pierre Shale and Associated Rocks in Western Kansas and Eastern Colorado
From introduction: The primary objective of these studies is to determine the content and distribution of uranium areally and stratigraphically in the Sharon Springs member of the Pierre shale of Late Cretaceous age.
Date:
December 1955
Creator:
Landis, Edwin R.
Object Type:
Report
System:
The UNT Digital Library
[Evolution of Sedimentary Basins--Paradox Basin: Chapters C and D]
From abstract: The report for document C is about the tectonic trends of the northern part of the Paradox Basin of southeastern Utah and southwestern Colorado, as derived from Landsat multispectral scanner imaging and geophysical and geologic mapping. The report for document D is about an uncontrolled X-band airborn radar-image mosaic that was compiled for the western three-fifths of the Moab 1° x 2° quadrangle of southeastern Utah and southwestern Colorado.
Date:
1994
Creator:
Friedman, Jules D.; Case, James E.; Simpson, Shirley L. & Heller, Joan S.
Object Type:
Report
System:
The UNT Digital Library