Earth Sciences Commons^™

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 …

Some Chemical And Mineralogical Aspects Of Plutonic Rocks From The North Arm Mountain Massif, Bay Of Islands Ophiolite, Newfoundland, Jerry W. Sullivan

Geology Theses and Dissertations

Whole-rock major and trace element compositions of one basalt, one diabase, and 21 rocks from the magmatic-plutonic units of the North Arm Mountain massif, Bay of Islands ophiolite, Newfoundland, were determined. Mineral compositions of a subset of the plutonic rocks were also determined.
The major and trace element compositions of the basalt and diabase are similar to abyssal tholeiites, and this is consistent with the REE data of Malpas (1978) and Suen, et. al. (1979) that suggest the lavas and dikes formed from a depleted or slightly enriched abyssal tholeiitic magma. The alkaline nature of the magma proposed by several …

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 …

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

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 …

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

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.

Development Of Irrigation Well Drilling In Nebraska, Vance Anderson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

The Distribution Of Cesium-137, Copper, Lead And Zinc In Various Sedimentary Environments Of The James River Estuary, Virginia, Colin Stevenson Moy

OES Theses and Dissertations

Ten grab samples and eight cores were obtained within a short stretch of the James River estuary. The distribution of CU, Pb, Zn, Cs-137, organic carbon (TOC) and fine-grained sediments in various depositional environments were examined. Within the past quarter of a century, these measured parameters have been accumulating preferentially in the low energy environment (Burwell Bay). The inventory of Cs-137 in the cores was linearly related to the inventory of heavy metals and TOC. The concentrations of Cs-137 in the surface sediments vary linearly to those of the other parameters suggesting that Cs-137 may be used as a tracer …

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

Determination Of Sediment Filtration Efficiency Of Grass Media, David T. Kao

KWRRI Research Reports

Vegetative filters serve the purpose of retarding flow. As a result the sediment carrying power of flowing water in a vegetated channel is greatly reduced and silting takes place along the section where the vegetation is planted.

The mechanism of the filtering action of real or artificial vegetation can be described by a simplified principle, in that a gross reduction of turbulent fluctuation of the fluid is involved. This in turn allows the sediment particles to settle under the force of gravity more readily. In the case of nonsubrnerged flow, solid particles may settle out even faster due to the …

An Environmental Study Of The Origin, Distribution, And Bioaccumulation Of Selenium In Kentucky And Barkley Lakes, B. E. Mcclellan, Kenneth J. Frazer

KWRRI Research Reports

Many samples of water, bottom sediment, and fish were analyzed for toxic metal ion content. The samples were collected from several selected sites along Kentucky and Barkley Lakes as well as the Cumberland River and several sub-impoundments along these aquatic systems. Emphasis was placed on selenium, although several other metal ions were determined. The results showed that there are no serious pollution problems with As, Cd, Cr, Cu, Hg, Pb, Se, Sr, Zn, or Zr at any of the sites examined. Actually, none of the trace metals examined even come close to the EPA limits on fish, with the exception …

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 …

Botanical And Ecological Aspects Of Coastal Raised Peatlands In Maine : And Their Relevance To The Critical Areas Program Of The State Planning Office, Ian A. Worley

Maine Collection

Botanical and Ecological Aspects of Coastal Raised Peatlands in Maine : and Their Relevance to the Critical Areas Program of the State Planning Office.

by Ian A. Worley

A Report Prepared for the Maine Critical Areas Program, State Planning Office, 184 State Street, Augusta, Maine 04333.

Planning Report No. 69 (January 1980)

Contents: Foreword / Abstract / Table of Contents / List of Figures / List of Tables / Acknowledgements / Introduction / Natural History and Ecology of the Coastal Raised Peatlands / Selection of Coastal Peatlands Recommended for Evaluation by the Critical Areas Program / General Evaluation of Coastal …

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.

Nebraska Groundwater Level (Decline & Rise) And Location Of Registered Wells, 1980

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Nebraska County Map

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Collecting In Nebraska's Glacial Deposit, John Boellstorff

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Annual Departures From Average Annual Precipitation In Nebraska, 1850-1979, Conservation Survey Division

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Nebraska Mineral Operations Review, 1979, Raymond R. Burchett, Duane A. Eversoll

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Geology And Groundwater Supplies Of Box Butte County, Nebraska, 1979, V. L. Souders, F. A. Smith, J. B. Swinehart

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.

Geology Along The Republican River Valley Near Red Cloud, Nebraska, R. K. Pabian, J. B. Swinehart

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.