Open Access. Powered by Scholars. Published by Universities.®

Geology Commons™

Open Access. Powered by Scholars. Published by Universities.®

Sedimentology

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 961 - 990 of 1560

Full-Text Articles in Geology

Geology And Petroleum Potential Of The Hay Creek Anticline, North-Central Oregon, Stephen I. Wareham Aug 1986

Geology And Petroleum Potential Of The Hay Creek Anticline, North-Central Oregon, Stephen I. Wareham

Loma Linda University Electronic Theses, Dissertations & Projects

For many years it has been reported that the core of the Hay Creek Anticline exposes metamorphic rocks of Paleozoic or Mesozoic age. On closer study it was found that these rocks consist of only slightly metamorphosed black to dark grey siltstones and sandstones with less abundant chert pebble conglomerate and recrystallized limestone. The sequence is here informally named "Hay Creek Formation." Calcareous nannofossils recovered and identified from the limestone yielded an age of early to middle Eocene.

The depositional environment of the "Hay Creek Formation" is interpreted to be a submarine turbidite fan. Siltstones were deposited as pelagic rain …


Groundwater Levels In Nebraska, 1985, Michael J. Ellis, Darryll T. Pederson Jul 1986

Groundwater Levels In Nebraska, 1985, Michael J. Ellis, Darryll T. Pederson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Hydrogeology Of Water-Quality Monitoring Transects In An Irrigated Area Of The Eastern Sand Hills, Nebraska, Dennis R. Lawton May 1986

Hydrogeology Of Water-Quality Monitoring Transects In An Irrigated Area Of The Eastern Sand Hills, Nebraska, Dennis R. Lawton

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Relationship Of Stream Drainage And Airphoto-Derived Lineaments To Basement Structures In The North Central Virginia Coastal Plain, William F. Mullen Apr 1986

Relationship Of Stream Drainage And Airphoto-Derived Lineaments To Basement Structures In The North Central Virginia Coastal Plain, William F. Mullen

OES Theses and Dissertations

A lineament study was conducted in the north central coastal plain of Virginia using five different data sources; color infrared photo images, rectified stream segments, bouguer gravity anomaly maps, aeromagnetic anomaly maps, and residual magnetic anomaly maps to determine the potential of aerial photographic analysis in the delineation of basement structural features beneath the sedimentary cover of the Virginia Coastal Plain.

Statistical analysis of 1602 airphoto lineaments and 2337 rectified stream segments produced 15 airphoto lineaments and 18 rectified stream segment lineaments in the north central Coastal Plain Province of Virginia. Azimuthal coincidence of these 33 lineaments determined that there …


Paleocurrent Analysis Of The Cretaceous Mitchell Formation, North-Central Oregon, Craig A. Sandefur Mar 1986

Paleocurrent Analysis Of The Cretaceous Mitchell Formation, North-Central Oregon, Craig A. Sandefur

Loma Linda University Electronic Theses, Dissertations & Projects

Cretaceous sedimentary rocks of north-central Oregon previously referred to as the Hudspeth and Gable Creek formations and recently renamed the Mitchell Formation are potential petroleum source and reservoir rocks. Thus, determining their extent under the cover of Tertiary volcanics is of great importance to future petroleum exploration in the southern half of the Columbia Basin. The direction of sediment transport has been previously studied by several workers with contradicting results and conclusions. The primary objective of this research was to expand the paleocurrent analysis using both macro- and micro-fabric to provide additional evidence of sediment transport direction. This information allows …


Environmental And Physiological Effects On Water Use Of Cereal Crops, Joon Kim Mar 1986

Environmental And Physiological Effects On Water Use Of Cereal Crops, Joon Kim

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Policy Issue Study On Integrated Management Of Surface Water And Groundwater Report, Dayle E. Williamson, Bob Kuzelka Feb 1986

Policy Issue Study On Integrated Management Of Surface Water And Groundwater Report, Dayle E. Williamson, Bob Kuzelka

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Resource Notes-Spring 1986 Jan 1986

Resource Notes-Spring 1986

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Resource Notes-Summer 1986 Jan 1986

Resource Notes-Summer 1986

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Annual Outflow Of Water From Nebraska, 1950-1985, Conservation Survey Division Jan 1986

Annual Outflow Of Water From Nebraska, 1950-1985, Conservation Survey Division

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Annual Outflow/Inflow Of Water From Nebraska, 1950-1985, Conservation And Survey Division Jan 1986

Annual Outflow/Inflow Of Water From Nebraska, 1950-1985, Conservation And Survey Division

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Estimate Of Livestock Water Use In Nebraska During 1980, Eugene K. Steele Jr. Jan 1986

Estimate Of Livestock Water Use In Nebraska During 1980, Eugene K. Steele Jr.

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Mineral Operations Review, 1985, Ray R. Burchett, Duane A. Eversoll Jan 1986

Nebraska Mineral Operations Review, 1985, Ray R. Burchett, Duane A. Eversoll

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Depositional Model For The Auriferous Gravels In The Payan Mining District Department Of Narino, Columbia, South America, Jim R. Garrett Oct 1985

Depositional Model For The Auriferous Gravels In The Payan Mining District Department Of Narino, Columbia, South America, Jim R. Garrett

OES Theses and Dissertations

Unlike placer deposits in arid and semi-arid environments where gold concentration is closely tied to the position of the bedrock, Payan placer deposits have no association with bedrock. Gold concentration values show highest gold concentrations occur at the contact of a coarse sand unit and its underlying gravel unit. Comparisons of the size and shape distributions of gold grain populations with their associated black sand populations indicate the gold and black sand were not deposited in hydraulic equilibrium. The mean size of each gold population is consistently coarser than the mean size of its associated black sand population despite the …


The Amphibians And Reptiles Of Nebraska, George E. Hudson Aug 1985

The Amphibians And Reptiles Of Nebraska, George E. Hudson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Aspects Of Groundwater Quality Proceedings 1985 Water Resources Seminar Series Jun 1985

Aspects Of Groundwater Quality Proceedings 1985 Water Resources Seminar Series

Conservation and Survey Division: Faculty and Staff Publications

During each spring semester, the Nebraska Water Resources Center sponsors a Water Resources Seminar Series at the University of Nebraska - Lincoln. The 1985 seminar series was entitled "Aspects of Groundwater Quality".


Groundwater Levels In Nebraska 1984, Michael J. Ellis, Darryll T. Pederson Jun 1985

Groundwater Levels In Nebraska 1984, Michael J. Ellis, Darryll T. Pederson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Groundwater Levels In Nebraska, 1984, Michael J. Ellis, Darryll T. Pederson Jun 1985

Groundwater Levels In Nebraska, 1984, Michael J. Ellis, Darryll T. Pederson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Classification, Paleoecology, And Biostratigraphy Of Crinoids From The Stull Shale (Late Pennsylvanian) Of Nebraska, Kansas, And Iowa, Roger K. Pabian, Harrell L. Strimple Mar 1985

Classification, Paleoecology, And Biostratigraphy Of Crinoids From The Stull Shale (Late Pennsylvanian) Of Nebraska, Kansas, And Iowa, Roger K. Pabian, Harrell L. Strimple

Bulletin of the University of Nebraska State Museum (1924–2023)

Thirteen species of crinoids representing the families Diphuicrinidae, catacrinidae, Pirasocrinidae, Erisocrinidae, Cromyocrinidae, Cymbiocrinidae, Scytalocrinidae, and Ampelocrinidae have been collected from the Stull Shale Member of the Kanwaka Formation in the Shawnee Group of the Virgil Series (Upper Pennsylvanian) from near Weeping Water and Plattsmouth, Nebraska, and near Pacific Junction, Iowa. Exposures of the Stull Shale near Melvern, Kansas, have yielded 14 species of crinoids representing the families Diphuicrinidae, Catacrinidae, Pirasocrinidae, Lophocrinidae Allagecrinidae, Cymbiocrinidae, Erisocrinidae, Apographiocrinidae, and Stellarocrinidae. All but two of the species present in the Stull Shale have been previously reported from other stratigraphic horizons, including the Vinland Shale …


Atlas Illustrating The Characteristics Of Groundwater In Nebraska, Vince Dreeszen Jan 1985

Atlas Illustrating The Characteristics Of Groundwater In Nebraska, Vince Dreeszen

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Sedimentology And Tectonic Significance Of The Nutzotin Mountains Sequence, Alaska, Jane Kozinski Jan 1985

Sedimentology And Tectonic Significance Of The Nutzotin Mountains Sequence, Alaska, Jane Kozinski

Geology Theses and Dissertations

The Nutzotin Mountains Sequence, a Mesozoic flysch sequence in the eastern Alaska Range, was studied along the southern border and in the central portions of the outcrop belt. Three lithologic associations are recognized in the Bonanza Creek section (southern margin) that together indicate a coarsening-upward trend, suggestive of a prograding fan system. These associations are (from bottom to top): 1) debris flow conglomerates overlain by 500 m of intercalated mudstone and base-missing turbiditic siltstone, and mass movement features such as slump folds and slump horizons, 2) 195 m of thicker, coarser turbidites intercalated with mudstones; turbidites are graded but lack …


Geology Of The Frozen Ocean Lake - New Bay Pond Area, North-Central Newfoundland, Timothy M. Kusky Jan 1985

Geology Of The Frozen Ocean Lake - New Bay Pond Area, North-Central Newfoundland, Timothy M. Kusky

Geology Theses and Dissertations

Rocks of the Frozen Ocean Group outcrop in the Frozen Ocean Lake-New Bay Pond Area, Newfoundland, and are here divided into four formations. The Lewis Lake Formation forms the base of the Frozen Ocean Group, and is composed predominantly of mafic volcanic flows; this is conformably overlain by the Blue Star Formation which is entirely sedimentary in nature. The Blue Star Formation is in turn conformably overlain.by the Bursey Point Formation, which is a mixed volcanic and sedimentary unit. The top of the Frozen Ocean Group is marked by the Lynx Pond Formation, a mixed silicic- and mafic-volcanic formation, with …


Annual Outflow Of Water From Nebraska, 1950-1984, Conservation Survey Division Jan 1985

Annual Outflow Of Water From Nebraska, 1950-1984, Conservation Survey Division

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Estimate Of Self-Supplied Domestic Water Use In Nebraska During 1980, E.K. Steele Jan 1985

Estimate Of Self-Supplied Domestic Water Use In Nebraska During 1980, E.K. Steele

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Mineral Operations Review, 1984, Raymond R. Burchett, Duane A. Eversoll Jan 1985

Nebraska Mineral Operations Review, 1984, Raymond R. Burchett, Duane A. Eversoll

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Transmissivity Of The Principal Aquifer In Nebraska Jan 1985

Transmissivity Of The Principal Aquifer In Nebraska

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Concentration Of Nitrate-Nitrogen In Groundwater Central Platte Region, Nebrask 1984, M. E. Exner Jan 1985

Concentration Of Nitrate-Nitrogen In Groundwater Central Platte Region, Nebrask 1984, M. E. Exner

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Thermal Infrared Remote Sensing Of Near-Surface Moisture: A Case Study In The Nebraska Sandhills, L. P. Queen, D. C. Rundquist, M. P. Lawson Jan 1985

Thermal Infrared Remote Sensing Of Near-Surface Moisture: A Case Study In The Nebraska Sandhills, L. P. Queen, D. C. Rundquist, M. P. Lawson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Significant Rises And Declines In Nebraska Groundwater Levels (From Pre-Development As Of Fall 1984)/Registered Irrigation Wells In Nebraska (As Of January 1, 1985, Conservation Survey Division, U.S. Geological Survey Jan 1985

Significant Rises And Declines In Nebraska Groundwater Levels (From Pre-Development As Of Fall 1984)/Registered Irrigation Wells In Nebraska (As Of January 1, 1985, Conservation Survey Division, U.S. Geological Survey

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Irrigation Water Diagram Jan 1985

Irrigation Water Diagram

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.