Description:
The following report provides information for the public good about the origin, quality, and quantity of mineral resources world-wide. This Bulletin reports progress on some of the current activities of the Office of Mineral Resources and reflects the necessity for an international perspective regarding mineral resources and research technology.
Date:
1993
Creator:
Scott, Richard W., Jr.; Detra, Pamela S. & Berger, Byron R.
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.
Description:
From introduction: This report supplements similar reports prepared for the four 7.5-minute quadrangles that cover the Turkey Creek caldera and geologic map of the caldera.
Description:
The following report interprets the geologic history of the Paducah quadrangle, focusing on depositional and tectonic evolution, particularly tectonic events that influenced sedimentation.
Description:
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.
Description:
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.
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.
Description:
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.
Description:
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
Description:
A report which examines the sedimentary rocks deposited along a segment of the west coast of the interior seaway of North America in southwest Wyoming during the late Santonian and early Campanian subages of the Late Cretaceous Epoch.
Description:
A report that discusses the interpretation of impact shock evidence found in the K-T boundary sections and discusses the constraints imposed by the Australasian tektites and microtektites on the role of the 180-km Chicxulub crater in mass extinction.
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.
Date:
1992
Creator:
Robbins, Stephen L. & Keller, G. Randy, Jr.
Description:
The following report presents detailed lethologic and conodont biostratigraphic data from four measured sections in the lower part of the Oquirrh Group in the Oquirrh Mountains of Utah and the Deep Creek and Samaria Mountains of Idaho.
Date:
1994
Creator:
Davis, L. E.; Dyman, T. S. & Webster, G. D.
Description:
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.
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.
Date:
1998
Creator:
Wahl, Arthur D.; Naeser, Nancy D.; Isaacs, Caroline M. & Keller, Margaret A.
Description:
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 co…
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Date:
1999
Creator:
Sorlien, Christopher C.; Nicholson, Craig; Luyendyk, Bruce P.; Miller, Kate C. & Meltzer, Anne S.
Description:
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.
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.
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…
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Description:
From abstract: The information presented in this report supplements the geologic map of the Fife Peak quadrangle and supports ongoing investigations of the evolution of the Turkey Creek caldera.
Date:
1992
Creator:
Du Bray, E. A.; Yager, Douglas B. & Pallister, John S.
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 encroach…
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