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Page 5962, results 149026 - 149050

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Publication Extents

Not all publications have extents, not all extents are completely accurate
The distribution and abundance of planktonic diatoms in Lake Superior
Ruth E. Holland
1965, Conference Paper, Proceedings of the eighth conference on Great Lakes research
The principal diatoms collected at 14 stations in Lake Superior were Cyclotella "glomerata-stelligera" [= C. glomerata and C. stelligera combined], Cyclotella "ocellata-kutzingiana", Fragilaria crotonensis, and Rhizosolenia eriensis. Concentrations were heaviest in the Apostle Islands region (up to 2,160 per ml) and lightest northwest of the Keweenaw Peninsula (68 to 78...
Directional hydraulic behavior of a fractured-shale aquifer in New Jersey
John Vecchioli
1965, Conference Paper, Proceedings of the international symposium on hydrology of fractured rocks
The principal source of ground water throughout a large part of central and northeastern New Jersey is the aquifer in the Brunswick Shale -- the youngest unity of the Newark Group of Triassic Age. Large-diameter public-supply and industrial wells tapping the Brunswick Shale commonly yield several hundred gallons per...
Experimental control of sea lampreys with electricity on the south shore of Lake Superior, 1953-60
Alberton L. McLain, Bernard R. Smith, Harry H. Moore
1965, Technical Report 10
Experimental control of the sea lamprey, Petromyzon marinus, with electric barriers was begun in Lake Superior in 1953. Electrical devices were the most practical and promising method of control then available. Installed below spawning grounds in streams and rivers tributary to Lake Superior, these barriers were designed to prevent the...
Control of alligatorweed in South Carolina with granular silvex
Frank B. McGilvrey, J.H. Steenis
1965, Weeds (13) 66-68
Silvex, [2-(2,4,5-trichlorophenoxy)propionic acid], impregnated (20% ae) on clay granules, applied at a rate as low as 20 lb/A ae gave excellent control of well-rooted alligatorweed [Alternanthera philoxeroides (Mart.) Grieb] growing in less than 18 inches of water. The 2-ethylhexyl ester of silvex was more effective than the potassium salt. Silvex...
Field application methods for recovery of the selective lampricide, 3-trifluoromethyl-4-nitrophenol
Thomas J. Billy, Stacy L. Daniels, Lloyd L. Kempe, Alfred M. Beeton
1965, Conference Paper, Proceedings of the 8th Conference on Great Lakes Research
Colorimetric methods are described for the detection of residues of the selective lampricide, 3-trifluoromethyl-4-nitrophenol (TFM), in natural waters and fish tissues. Solvent extraction and anion exchange were used to separate and concentrate the lampricide, and to reduce high background colors which often interfere with the determinations. Data from the Pentwater...
Water supply and management concepts
Luna Bergere Leopold
1965, Industrial Water Engineering (2) 10-22
If I had to cite one fact about water in the United States which would be not only the most important but also the most informative, the one I would choose would k this: Over 50 percent of all the water presently being used in the United States is used...
Quality of surface water in the Sevier Lake basin, Utah
D. C. Hahl, R.E. Cabell
1965, Utah Basic-Data Release 10
Few data are available on the quality of surface waters in the Sevier Lake basin. Because of the need for information not only on the chemical-quality but also on the other water-quality characteristics of the basin, the U.S. Geological Survey, as part of its cooperative program with the Utah State...
Age and metamorphism of some massive sulfide deposits in Virginia, North Carolina and Tennessee
A.R. Kinkel Jr., H.H. Thomas, R. F. Marvin, F.G. Walthall
1965, Geochimica et Cosmochimica Acta (29) 717-724
Isotopic ages of vein and wall-rock samples have been determined on five massive sulflde deposits of the southern Appalachians. Vein mineral ages of about 1100 m.y. indicate that some ore bodies formed at least as early as the Grenville metamorphism, and probably soon after the formation of the enclosing gneiss...
Glass electrode determination of sodium in closed basin waters
A.H. Truesdell, B.F. Jones, A. S. Van Denburgh
1965, Geochimica et Cosmochimica Acta (29) 725-736
Because of its direct relation to total dissolved solids content, sodium concentration is the most useful single hydrochemical parameter of closed basin waters in the western United States. Therefore, it is advantageous to have a rapid method for sodium determination which could be...
Alkali content of alpine ultramafic rocks
W. Hamilton, W. Mountjoy
1965, Geochimica et Cosmochimica Acta (29) 661-671
The lower limit of abundance of sodium and potassium in ultramafic rocks is less than the threshold amount detectable by conventional analytical methods. By a dilutionaddition modification of the flame-spectrophotometric method, sodium and potassium have been determined in 40 specimens of alpine ultramafic...