Stratigraphy Commons^™

Groundwater Levels In Nebraska, 1981, Martin S. Johnson, Darryll T. Pederson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Geometries And General Features Of Some Cenozoic Valleys And Valley Fills, Western Nebraska, Robert F. Diffendal Jr.

School of Natural Resources: Faculty Publications

Portions of Tertiary and Quaternary valleys and valley fills have been exhumed by recent stream erosion at many sites in western Nebraska. Paleovalleys vary from narrow, steep-sided, high gradient tributary gullies less than 0.1 km wide to broad, flat-floored valleys produced by lateral erosion. Segments of valley floors may be nearly smooth in the case of a Quaternary example, or may be very irregular with potholes and other deep scour features. Paleovalley sides, when exposed, are often steeply sloping, and approaching or possibly going beyond the vertical where the valleys have been eroded into the Brule Formation. Paleovalleys range in …

Nebraska Groundwater Level (Decline & Rise) And Location Of Registered Wells, 1982

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Nebraska Mineral Operations Review, 1982, Raymond R. Burchett, Duane A. Eversoll

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Geothermal Resources Of Nebraska, W. D. Gosnold, D. A. Eversoll

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Thickness And Structure Maps Of The Pennsylvanian And Permian Rocks Across Southern Nebraska, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Regional Tectonics And Seismicity Of Eastern Nebraska, Annual Report, July 1980–June 1981, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

This annual report presents and interprets the information obtained by the Conservation and Survey Division (Nebraska Geological Survey) during contract year July 1, 1980, to June 30, 1981, under contract NRC-04-76-3l5 with the U.S. Nuclear Regulatory Commission. The information pertains to the geology, structure, tectonics, and seismicity of eastern Nebraska with emphasis on central Otoe County. Some of the information presented here results from a combination of studies begun in earlier years but the greater part results from studies begun during the contract year.

The scope of the studies is summarized as follows:

1. Rock outcrops in Otoe County were …

Regional Tectonics And Seismicity Of Eastern Nebraska, Annual Report, July 1979–June 1980, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

This annual report presents and interprets the information obtained by the Conservation and Survey Division (Nebraska Geological Survey) during contract year July 1, 1979, to June 30, 1980, under contract NRC-04-76-3l5 with the U.S. Nuclear Regulatory Commission. The information pertains to the geology, structure, tectonics, and seismicity of eastern Nebraska with emphasis on the vicinity south of Omaha, Nebraska. Some of the information presented here results from a combination of studies begun in earlier years but the greater part results from studies begun during the contract year.

The scope of the studies is summarized as follows:

1. Rock outcrops in …

Lithologic And Structural Controls On Karst Landforms Of The Mitchell Plain, Indiana, And Pennyroyal Plateau, Kentucky, Frederick Jennings Woodson

All-Inclusive List of Electronic Theses and Dissertations

Karst features in Harrison County, Indiana, and the Mammoth Cave region, Kentucky, are profoundly influenced by lithology and structure. In the Sinkhole Plain two classes of sinkholes, shallow solutional and deeper subsidence, differ in morphology, origin, age, distribution, and density. Distributions of the two kinds of sinkholes reflect the outcrop pattern of specific lithostratigraphic units. Broad shallow dolines (Ste. Genevieve-type sinks) develop on the Horse Cave Member of the St. Louis Limestone and on the Ste. Genevieve, Girkin, and Paoli Limestones. Innumerable steeper-sided subsidence and collapse depressions (St. Louis-type sinkholes) form on the Corydon Chert Member, lower St. Louis Limestone, …

Groundwater Levels In Nebraska, 1980, Martin S. Johnson, Darryll T. Pederson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Nebraska Mineral Operations Review, 1980, D. A. Eversoll, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Provenance And Description Of Landslide Masses, Rainbow Gardens Clark County, Nevada., Joseph R. Parolini

UNLV Theses, Dissertations, Professional Papers, and Capstones

A landslide breccia of plutonic and metamorphic rocks located 20 km east of Las Vegas, Nevada is interstratified with the late Tertiary Thumb Formation. Rock types of similar mineral composition to the landslide masses in the Rainbow Gardens are found 60 km to the east in the Gold Butte (Nevada) area. The landslide masses were displaced into their present position by lateral strike-slip motion along either the left-lateral Lake Mead fault system or the right-lateral Las Vegas shear zone. In t.he Rainbow Gardens landslide masses, five plutonic rock types, including rapakivi granite, match rocks from the Gold Butte area, both …

Nebraska Mineral Operations Review, 1980, Raymonds R. Burchett, Duane A. Eversoll

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Geology Of The Plutonic And Hypabyssal Rocks Of The Betts Cove Ophiolite Complex, Newfoundland, Bruce D. Idleman

Geology Theses and Dissertations

The Betts Cove ophiolite complex lies within the Dunnage Zone island arc terrain of central Newfoundland. It forms the base of the lower Ordovician Snooks Arm Group, which consists of mafic igneous rocks of the ophiolite and a thick sequence of volcanic and volcaniclastic rocks which conformably overlies it. The Snooks Arm Group is unconformably overlain by sub-aerial sediments and volcanics of the presumed Silurian Cape St. John Group.
The base o£ the ophiolite complex consists predominantly of ultramafic rocks. These are interlayered on a variety of scales, and show mesoscopic igneous structures which suggest that they were produced by …

Structural Studies Of The Ordovician Flysch And Melange In Albany County, New York, Frederick W. Vollmer

Geology Theses and Dissertations

The middle Ordovician rocks of the Albany 15 minute quadrangle comprise interbedded graywacke and shale, and in the east, coarse cobble or olistostromic deposits. The detrital composition, westward fining and regional westward transgression of these deposits indicate that these were sediments shed off the westward thrusting Taconic Allochthon. Primary sedimentary structures show that these rocks were deposited by turbidity currents flowing into a longitudinal trough, probably formed in response to increased load during overthrusting. Although strongly dependent on lithology, deformation intensity generally increases from west to east; from essentially undeformed bedded flysch through asymmetrically folded and thrust beds to highly …

Development Of Irrigation Well Drilling In Nebraska, Vance Anderson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Kansan Proglacial Environment, East-Central Nebraska, William J. Wayne

Department of Earth and Atmospheric Sciences: Faculty Publications

A stream bank along a tributary of Salt Creek in east·central Nebraska displays a sequence of sediments deposited along an eastward flowing stream during part of the approach and subsequent retreat of the last ice sheet to expand into this area during the Kansan glaciation. The section exposes a series of beds of calcareous silt which contain fossil·rich lenses. Sediment characteristics and the habitat requirements of 31 species of snails recovered suggest that the silts accumulated on an aggrading floodplain and probably were derived from erosion of unweathered cal· careous till and calcareous wind·blown silts deposited during an earlier ice …

Geology And Groundwater Supplies Of Southern Dawes And Northern Sheridan Counties, Nebraska, Vernon L. Souders

Conservation and Survey Division: Faculty and Staff Publications

The upland plain in southern Dawes and northern Sheridan counties of northwest Nebraska is underlain by rocks of Tertiary age. These rocks overlie those of Cretaceous and Jurassic ages in this region of about 2250 square miles . Strata of Tertiary age are a source of groundwater for most of the irrigation, municipal, stock, and rural-domestic needs of the area.

Nine stratigraphic units of Tertiary.age were defined by examination of test hole samples and logs and by examining electric logs of oil and gas tests, driller's logs of irrigation wells, and outcrops. Stratigraphic correlations are difficult in the area because …

Annual Outflow Of Water From Nebraska, 1950-1980, Conservation Survey Division

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Nebraska Groundwater Level (Decline & Rise) And Location Of Registered Wells, 1981

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Groundwater Reservoir Management Policy Issue Study: A Contract Report For The State Water Planning And Review Process-Nebraska Natural Resources Commission

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Climate Of Nebraska, Richard E. Myers

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Groundwater Levels In Nebraska, 1979, Martin S. Johnson, Darryll T. Pederson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Tourmaline - A Prospecting Guide For Massive Base-Metal Sulfide Deposits In The Penobscot Bay Area, Maine, John F. Slack

Maine Collection

Tourmaline - A Prospecting Guide for Massive Base-Metal Sulfide Deposits in the Penobscot Bay Area, Maine

by John F. Slack, U.S. Geological Survey

Special Economic Studies Series No.8

Maine Geological Survey, Department of Conservation, Augusta, Maine (June, 1980).

Contents: Abstract / Introduction / Geologic Setting / Massive Sulfide Deposits / Tourmaline Occurrences / Tourmaline: A Guide to Ore / Acknowledgements / References Cited

Stratigraphy And Sedimentation Of The Spencer Formation In Yamhill And Washington Counties, Oregon, Fathi Ayoub Al-Azzaby

Dissertations and Theses

The Spencer Formation in Yamhill and Washington Counties, Oregon, is exposed in a narrow belt 27 km long, from 1/4 to 3 km wide and with a maximum thickness of about 400 m. The formation is composed entirely of sandstone with interbedded thin layers of mudstone in the uppermost member. The sedimentary structure and paleoecology indicate a shallow marine depositional environment. The upper member of the Spencer Formation contains more quartz, plagioclase, and hornblende than does the lower member, but K-feldspar is less than that of the lower member. Shallower water conditions for the deposition of the upper member are …

Configuration Of The Base Of The Principal Aquifer, Conservation And Survey Division, University Of Nebraska-Lincoln

Conservation and Survey Division: Faculty and Staff Publications

Conservation and Survey Division. Configuration of the Base of the Principal Aquifer. Map. No Scale. Base Principal Aquifer, 1980 Series. Lincoln: Conservation and Survey Division, University of Nebraska. Print. (date unknown, 1980?)

Collecting In Nebraska's Cretaceous Strata, H. M. Degraw, R. K. Pabian

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

The Process And Criteria For Siting Of Hazardous Waste Disposal Facilities In Nebraska, Conservation And Survey Division

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Ash Hollow Historical Park, Robert F. Diffendal Jr.

Conservation and Survey Division: Faculty and Staff Publications

About Ash Hollow Historical Park in Nebraska (United States).

Collecting In Western Nebraska's Cenozoic Strata, J. B. Swinehart

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.