Chemical and biological conditions in Bald Eagle Creek and prognosis of trophic characteristics of Foster Joseph Sayers Reservoir, Centre County, Pennsylvania
Herbert N. Flippo Jr.
1970, Open-File Report 71-109
Foster Joseph Sayers. Reservoir will b.e impounded on moderately fertile soils; however, its water source, Bald Eagle Creek, is a bicarbonate-water stream that is over~y-enriched with nutrients. About 650 of the 1,730 acres to be inundated in summer are subject to infestation with aquatic weeds. Nuisance algal "blooms" are expected...
Effects of the earthquake of March 27, 1964, on the Alaska Railroad
David S. McCulloch, Manuel G. Bonilla
1970, Professional Paper 545-D
In the 1964 Alaska earthquake, the federally owned Alaska Railroad sustained damage of more than $35 million: 54 percent of the cost for port facilities; 25 percent, roadbed and track; 9 percent, buildings and utilities; 7 percent, bridges and culverts; and 5 percent, landslide removal. Principal causes of damage were:...
The Alaska earthquake, March 27, 1964: Lessons and conclusions
Edwin B. Eckel
1970, Professional Paper 546
One of the greatest earthquakes of all time struck south-central Alaska on March 27, 1964. Strong motion lasted longer than for most recorded earthquakes, and more land surface was dislocated, vertically and horizontally, than by any known previous temblor. Never before were so many effects on earth processes and on...
Feasibility of surveying pesticide coverage with airborne fluorometer
George Eimert Stoertz, William R. Hemphill
1970, Open-File Report 70-315
Response of a Fraunhofer line discriminator (FLD) to varying distributions of granulated corncobs stained with varying concentrations of Rhodamine WT dye was tested on the ground and from an H-19 helicopter. By design the instrument detected fluorescence specifically at the sodium D2 Fraunhofer line (5890 angstroms). The granules are used...
Analysis of Shublik Formation rocks from Mt. Michelson quadrangle, Alaska
Robert L. Detterman
1970, Open-File Report 70-101
Analysis of 88 samples from the Shublik formation on Fire Creek, Mt. Michelson Quadrangle, Alaska, are presented in tabular form. The results include the determination of elements by semiquantitative spectrographic analysis, phosphate by X-ray fluorescence, carbon dioxide by acid decomposable carbonate, total carbon by induction furnace, carbonate carbon by conversion...
Preliminary digital model studies of the Rio Aconcagua Valley, Chile
O. James Taylor
1970, Open-File Report 71-278
Study and interpretation of the chemical characteristics of natural water
John David Hem
1970, Water Supply Paper 1473
The chemical composition of natural water is derived from many different sources of solutes, including gases and aerosols from the atmosphere, weathering and erosion of rocks and soil, solution or precipitation reactions occurring below the land surface, and cultural effects resulting from activities of man. Some of the processes of...
Ground-water resources of the Clatsop Plains sand-dune area, Clatsop County, Oregon
F. J. Frank
1970, Water Supply Paper 1899-A
Although the average annual precipitation of the Clatsop Plains is 78.5 inches, the area is not without problems of water supply. The Clatsop Plains area ix underlain by Tertiary bedrock of low permeability that stores and yields small quantities of ground water, which may be of poor chemical quality. This...
A proposed streamflow-data program for Montana
F. C. Boner, G.W. Buswell
1970, Open-File Report 70-33
An evaluation of the streamflow data available in Montana was made to provide guidelines for planning future programs. The basic steps in the evaluation procedures were (1) definition of the long-term goals of the streamflow data program, (2) examination and analysis of all available data to determine which goals have...
Water laws and concepts
H. E. Thomas
1970, Circular 629
Throughout human history various laws and customs have developed concerning the individual rights and rights in common to the waters of the earth. Many existing laws and concepts are clearly influenced by the environment in which they originated and reflect the relative abundance or scarcity of water. Many concepts reflect...
An appraisal of ground water for irrigation in the Wadena area, central Minnesota
F.G. Lindholm
1970, Water Supply Paper 1983
The Wadena area is part of a large sandy plain in central Minnesota whose soils have low water-holding capacity. Drought conditions which adversely affect plant growth frequently occur in the summer when moisture is most needed. To reduce the risk of crop failure in the area supplemental irrigation is on...
Hydrologic effects of floodwater-retarding structures on Garza-Little Elm Reservoir, Texas
Clarence R. Gilbert, Stanley P. Sauer
1970, Water Supply Paper 1984
The Texas District of the Water Resources Division of the U.S. Geological Survey has collected and analyzed hydrologic data since 1953 to define the effects of systems of floodwater-retarding structures on downstream water and sediment yield. The district project includes 11 study areas ranging from 18 to 80 square miles...
A digital model for aquifer evaluation
George Francis Pinder
1970, Techniques of Water-Resources Investigations 07-C1
Color infrared film as a negative material
Robert W. Pease
1970, Remote Sensing of Environment (1) 195-198
Original problems encountered in endeavors to use color infraredfilm as a negative material have been overcome by a simple modification in processing. This makes more feasible the production of infrared color prints for field use and yields an infrared counterpart to Aero-Neg....
Interstitial water studies on small core samples, Deep Sea Drilling Project, Leg 5
F.T. Manheim, K.M. Chan, F.L. Sayles
1970, Initial reports of the Deep Sea Drilling Project (5) 501-511
Leg 5 samples fall into two categories with respect to interstitial water composition: 1) rapidly deposited terrigenous or appreciably terrigenous deposits, such as in Hole 35 (western Escanaba trough, off Cape Mendocino, California); and, 2) slowly deposited pelagic clays and biogenic muds and oozes. Interstitial waters in the former show...
Geochemical balance of a small watershed and its geomorphic implications
E.T. Cleaves, A.E. Godfrey, O.P. Bricker
1970, Geological Society of America Bulletin (81) 3015-3032
A detailed input-output study of a small forested watershed draining the Wissahickon Formation in the Piedmont of Maryland revealed that chemical solution is five times as effective in removing material as is mechanical erosion. Solution weathering removes 16.9 tons/sq mi/yr of material compared with 3.2 tons/sq mi/yr by mechanical erosion....
A linear programming and least squares computer method for solving petrologic mixing problems
Thomas L. Wright, Patrick C. Doherty
1970, GSA Bulletin (81) 1995-2008
Problems of petrologic mixing have been solved using a two-stage computer-based calculation. First, linear programming is used to obtain an approximate solution and to identify non-negative solution values. Then a conventional least squares calculation is performed using the analyses represented by non-negative solution values as input to yield an optimum...
Mechanism of the Chilean Earthquakes of May 21 and 22, 1960
George Plafker, James C. Savage
1970, GSA Bulletin (81) 1001-1030
The Chilean earthquake sequence of May 21–22, 1960, was accompanied by linear zones of tectonic warping, including both uplift and subsidence relative to sea level. The region involved is more than 200 km wide and about 1000 km long, and lies along the continental margin between latitude 37° and 48°...
Distribution of silver and copper in placer gold derived from the northeastern part of the Colorado Mineral Belt
George A. Desborough, William H. Raymond, Paula J. Iagmin
1970, Economic Geology (65) 937-944
Placer gold grains from the modern streams originating in the Colorado Mineral Belt were examined for silver and copper content on a quantitative basis utilizing the electron microprobe. The variation among grains from a particular locality is large, but the mean silver content of the...
Age of the Morton and Montevideo gneisses and related rocks, southwestern Minnesota
S. S. Goldich, C. E. Hedge, T. W. Stern
1970, Bulletin of the Geological Society of America (81) 3671-3695
Granitic gneisses in the vicinities of Morton and Montevideo in the Minnesota River Valley are dated at 3550 m.y. ago and are the oldest rocks so far found in North America. The gneisses were altered in varying degree by younger events of which two have been dated at 2650 m.y....
Similarities, differences, and some genetic problems of the Wyoming and Colorado plateau types of uranium deposits in sandstone
R. P. Fischer
1970, Economic Geology (65) 778-784
Uranium deposits of the Wyoming roll type and the Colorado Plateau peneconcordant type are the principal domestic resources of uranium. Both types occur in lenticular sandstone beds of continental origin, have a similar suite of elements and minerals, are associated with mildly altered rock, and...
Determining parameters for populations by using structural models
Charles J. Henny, W.S. Overton, H. M. Wight
1970, Journal of Wildlife Management (34) 690-703
A method for calculating parameters necessary to maintain stable populations is described and the management implications of the method are discussed. This method depends upon knowledge of the population mortality rate schedule, the age at which the species reaches maturity, and recruitment rates or age ratios in the population....
Nature and origin of early and late cherts in the Leadville Limestone, Colorado
Norman G. Banks
1970, Bulletin of the Geological Society of America (81) 3033-3048
Two generations of chert have been observed in the Mississippian Leadville Limestone of west-central Colorado: (1) an early chert inferred to have precipitated from hypersaline marine waters of high pH after those waters seeped into carbonate muds prior to final burial and lithification of the carbonate; and (2) a late...
Computer ray tracing through complex geological models for ground motion studies
Nazieh K. Yacoub, James H. Scott, F. A. McKeown
1970, Geophysics (35) 586-602
No abstract available....
Radiogenic heat production of contrasting magma series: Bearing on interpretation of heat flow
Robert I. Tilling, David Gottfried, F. C. W. Dodge
1970, GSA Bulletin (81) 1447-1462
Variation in radiogenic heat production of rocks of diverse magma series (representative of calcic, calc-alkalic, alkali-calcic, and alkalic petrographic provinces on a worldwide basis) is better correlated with some form of magmatic differentiation index, rather than simply with potassium content alone as commonly supposed. The “lime-alkali” (Peacock) index generally gives...
