Two hermaphroditic alewives from Lake Michigan
Thomas A. Edsall, Margaret I. Saxon
1968, Copeia (1968) 406-407
Hermaphroditism has been reported frequently among many of the Clupeidae, but only one account of hermaphroditism has been published for the alewife, Alosa pseudoharengus. Rothschild discovered four hermaphroditic alewives among 444 fish he examined from Cayuga Lake, New York. We recently collected two hermaphroditic alewives from Lake Michigan....
An investigation of the source of air Ar contamination in K-Ar dating
A. E. Mussett, G. Brent Dalrymple
1968, Earth and Planetary Science Letters (4) 422-426
Precision of young KAr ages is limited by air argon contamination. A series of experiments in which the exposure of basalt and sanidine samples to air argon was controlled, shows that most of the air contamination does not...
Spectrographic date on cores from the Pacific Ocean and the Gulf of Mexico
E. J. Young
1968, Geochimica et Cosmochimica Acta (32) 466-471
Average quantitative spectrographic data are presented for V, Ti, Zr, Ni, Co, Sc, Cr and La in the following Pacific deep-sea cores: siliceous ooze (3), red clay (6), volcanic mud (3), calcareous ooze (3) and one manganese nodule, and in 23 near-shore cores,...
Lead isotopes and the origin of granulite and eclogite inclusions in deep-seated pipes
J.F. Lovering, M. Tatsumoto
1968, Earth and Planetary Science Letters (4) 350-356
The isotopic composition of lead and the concentrations of lead, uranium, and thorium in Delegate basic pipes from Australia and in South African kimberlite pipes have been determined. The observed238U/204Pb and observed232Th/238U of eclogite inclusions in the pipes range from 2.9 to 18.7 and from 3.5 to 5.9, respectively. This...
The relationship of geophysical measurements to engineering and construction parameters in the Straight Creek Tunnel pilot bore, Colorado
J. H. Scott, F. T. Lee, R. D. Carroll, C. S. Robinson
1968, International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts (5) 1-30
Seismic-refraction and electrical-resistivity measurements made along the walls of the Straight Creek Tunnel pilot bore indicate that both a low-velocity and a high-resistivity layer exist in the disturbed rock surrounding the excavation. Seismic measurements were analyzed to obtain the thickness and seismic velocity...
Distribution of manganese between coexisting biotite and hornblende in plutonic rocks
L. P. Greenland, D. Gottfried, R.I. Tilling
1968, Geochimica et Cosmochimica Acta (32) 1149-1163
The distribution of manganese between coexisting biotite and hornblende for 80 mineral pairs from igneous rocks of diverse provenance (including Southern California, Sierra Nevada, Boulder, and Boulder Creek batholiths and the Jemez Mountains volcanics) has been determined by neutron activation analysis. Data on...
Tertiary volcanic stratigraphy in the Powderhorn-Black Canyon region, Gunnison and Montrose Counties, Colorado
Jerry Chipman Olson, David Carl Hedlund, Wallace R. Hansen
1968, Bulletin 1251-C
No abstract available....
A distinction between bedrock and unconsolidated deposits on 3-5u infrared imagery of the Yellowstone rhyolite plateau
Robert L. Christiansen
1968, Open-File Report 68-34
Infrared imagery covering most of Yellowstone National Park was obtained in August 1966, by H. R. B. Singer Company, using the Reconofax IV system in an aircraft flying at about 20,000 feet. This imagery has been examined in order to evaluate the geologic information it contains in relation to a...
Middle pennsylvanian plant fossils: Problematic occurrence in the bronx
E-an Zen, S.H. Mamay
1968, Science (161) 157-158
A possible glacial boulder of undeformed and unmetamorphosed siltstone containing Middle Pennsylvanian plant fossils was recovered from the Bronx. The rock cannot be explained by known geologic relations and suggests the possibility of undetected outliers of Pennsylvanian rocks in the Hudson valley....
Maps showing locations of surface water stations: catalog of information on water data
1968, Report
United States Bureau of the Budget Circular A-67, issued in 1964, calls upon the Department of the Interior to coordinate certain water-data-acquisition activities by Federal agencies. The Circular contains guidelines for coordinating Federal water-data collection from streams, lakes, reservoirs, estuaries, and ground water; it also contains guidelines for developing a...
Seasonal depth distribution of fish in southeastern Lake Michigan
LaRue Wells
1968, Fishery Bulletin (67) 1-15
This study is based on systematic seasonal bottom trawling between 3 and 50 fathoms (5.5 and 91.5 m.) from February to November 1964 and supplementary information from other experimental fishing at additional depths and with other gear. The seasonal depth distribution of eight common species is described, and temperature relations...
Current status of whirling disease in salmonids in U.S
G. L. Hoffman
1968, American Fishes and U.S. Trout News (November-December) 10, 12, 19-20
Water quality of streams tributary to Lakes Superior and Michigan
Jerome W. Zimmerman
1968, Special Scientific Report - Fisheries 559
Water quality of streams tributary to Lakes Superior and Michigan was analyzed for 142 stations on 99 streams tributary to Lake Superior and 83 stations on 56 streams tributary to Lake Michigan during 1962-65. Concentrations of aluminum, copper, and iron were not affected greatly by flow or season. Magnesium, calcium,...
The alewife
Stanford H. Smith
1968, Limnos (1) 12-20
When the first alewife, Alosa pseudoharengus, was discovered in Lake Michigan near South Manitou Island on May 5, 1949, few people would have guessed that it would become the best known fish of the lake in less than two decades. Now it competes only with the coho salmon in...
Antimycin for controlling sunfish populations in ponds
R.M. Burress
1968, Farm Pond Harvest (2) 11,12, 22
Abstract has not been submitted...
Mineralogy as a function of depth in the prehistoric Makaopuhi tholeiitic lava lake, Hawaii
B.W. Evans, J.G. Moore
1968, Contributions to Mineralogy and Petrology (17) 85-115
The electron probe X-ray microanalyzer has been used to determine the compositional variability of the groundmass minerals and glass in 10 specimens from a complete 225-foot section of the prehistoric tholeiitic lava lake of Makaopuhi Crater, Hawaii. The order of beginning of crystallization was: (1) chromite, (2) olivine, (3) augite,...
Hydration rind dates rhyolite flows
I. Friedman
1968, Science (159) 878-880
Hydration of obsidian has been used to date rhyolite flows, containing obsidian or porphyritic glass, at Glass Mountain (Medicine Lake Highlands) and Mono Lake, California. The method is simple and rapid and can be used to date flows that erupted between 200 and approximately 200,000 years ago....
Dissociation constants of KSO4- from 10°-50°C
A.H. Truesdell, P. B. Hostetler
1968, Geochimica et Cosmochimica Acta (32) 1019-1022
A cell without liquid junction was used to obtain dissociation constants for the reaction: KSO4− = K+ +SO42−. At 10°, 25°, 38° and 50°C, values for Kdiss KSO4− are, respectively, 0.195, 0.142, 0.117, and 0.095. At 25°C, , and <img class="imgLazyJSB inlineImage" title=""...
Uranium disequilibrium in groundwater: An isotope dilution approach in hydrologic investigations
J.K. Osmond, H.S. Rydell, M. I. Kaufman
1968, Science (162) 997-999
The distribution and environmental disequilibrium patterns of naturally occurring uranium isotopes (U234 and U238) in waters of the Floridan aquifer suggest that variations in the ratios of isotopic activity and concentrations can be used quantitatively to evaluate mixing proportions of waters from differing sources. Uranium is probably unique in its...
European cretaceous flints on the coast of North America
K.O. Emery, C. A. Kaye, D.H. Loring, D.J.G. Nota
1968, Science (160) 1225-1228
Flint pebbles and nodules from the Upper Cretaceous chalks of Europe occur offshore and at many seaports along the Atlantic coast of North America, where they were brought as ship's ballast. Isolated pieces imported from Europe as gunflints also are present....
Electrophoretic separation of fish brain esterases
Charles O. Knowles, Suresh K. Arurkar, James W. Hogan
1968, Journal of the Fisheries Research Board of Canada (25) 1517-1519
Fish brains were homogenized in an all-glass Potter-Elvehjem-type tissue grinder in 40% sucrose solution. The homogenate concentration was 10 brains/ml for both the bluegill and channel catfish. The brei was centrifuged at 34,700 g for 30 min at 5 C, and 30 J.lliters of the supernatant were used per column...
A preliminary report of a recently discovered aquifer at Sioux Falls, South Dakota
Kenneth D. Vaughan, Earl A. Ackroyd
1968, South Dakota Academy of Science Proceedings (47) 68-74
A hydrologic study of the Big Sioux aquifer system was begun July 1, 1966, by the U.S. Geological Survey, in cooperation with the City of Sioux Falls and the East Dakota Conservancy Sub-District. Test drilling being done in the search for a southern outlet to the Big Sioux aquifer has...
Determination of palladium, platinum and rhodium in geologic materials by fire assay and emission spectrography
J. Hapfty, L.B. Riley
1968, Talanta (15) 111-117
A method is described for the determination of palladium down to 4ppb (parts per billion, 109), platinum down to 10 ppb and rhodium down to 5 ppb in 15 g of sample. Fire-assay techniques are used to preconcentrate the platinum metals into a gold bead, then...
Nuclear magnetic resonance studies of phosphorus(v) pesticides. Part I. Chemical shifts of protons as a means of identification of pesticides
H. Babad, W. Herbert, M. C. Goldberg
1968, Analytica Chimica Acta (41) 259-268
Correlations of structural and proton chemical-hift data for 40 commercial phosphorus(V) pesticides are reported. Correlations of structure with the phosphorus coupling constants are discussed, and general trends are noted which aid in the use of NMR as a tool for identification and analysis of phosphorus(V)...
Nuclear magnetic resonance studies of the phosphorus(v) pesticides: A rapid determination of the isomer ratio of systox
H. Babad, T.N. Taylor, M. C. Goldberg
1968, Analytica Chimica Acta (40) 387-392
The integration circuit of the Varian A-60 nuclear magnetic resonance spectrometer is used in conjunction with vapor phase chromatography, to develop a rapid analysis technique for the determination of isomer ratios in technical Systox-Sulfotepp mixtures. The complete analysis requires less than 0.1 g of sample...
