Rearing of sea lamprey, Petromyzon marinus, embryos in distilled water
George W. Piavis, John H. Howell
1969, Copeia (1969) 204-205
Most embryological studies of lampreys in the Great Lakes have been conducted with filtered water from Lake Huron. Although this water was entirely satisfactory for the earlier work, the present need for knowledge of the effects of various compounds on embryological development requires that the initial medium be sterile....
Anorthosite belts, continental drift, and the anorthosite event
N. Herz
1969, Science (164) 944-947
Most anorthosites lie in two principal belts when plotted on a predrift continental reconstruction. Anorthosite ages in the belts cluster around 1300 ±...
Ground-water discharge from the Edwards and associated limestones, San Antonio area, Texas, 1968
Celso Puente
1969, Edwards Underground Water District Bulletin 20
No abstract available....
Sediment Transport in Streams in the Umpqua River Basin, Oregon
C. A. Onions
1969, Report
This report presents tables of suspended-sediment data collected from 1956 to 1967 at 10 sites in the Umpqua River basin. Computations based on these data indicate that average annual suspended-sediment yields at these sites range from 137 to 822 tons per square mile. Because available data for the Umpqua River...
Loss of uranium from crystallized silicic volcanic rocks
J.N. Rosholt, D. C. Noble
1969, Earth and Planetary Science Letters (6) 268-270
Dense primarily crystallized silicic groundmass material from two welded ash-flow units and one lava flow of Tertiary age from the Western United States contain only 20 to 60 percent of the uranium present in nonhydrated glass from the rock units. These differences reflect...
Interstitial brines in playa sediments
B.F. Jones, A. S. Van Denburgh, A.H. Truesdell, S.L. Rettig
1969, Chemical Geology (4) 253-262
Study of several closed drainages in the Great Basin has shown that the interstitial solutions of shallow, fine-grained playa deposits store a large quantity of dissolved solids and are often more concentrated than associated lakes and ponds, except in peripheral zones of stream or ground-water inflow. These interstitial fluids,...
A paleomagnetic study of secular variation in New Zealand
A. Cox
1969, Earth and Planetary Science Letters (6) 257-267
Ancient secular variation in New Zealand was determined from paleomagnetic measurements on 22 volcanic formations with ages of less than 0.68 m.y. The angular standard deviation from the field of an axial dipole is 13.2° with 95% confidence limits between 10.9° and 16.7°....
The isotopic composition of lead in potassium feldspars from some 1.0-b.y. old North American igneous rocks
R. E. Zartman, G.J. Wasserburg
1969, Geochimica et Cosmochimica Acta (33) 901-942
The isotopic composition of lead and the uranium, thorium and lead concentrations in potassium feldspars are determined for more than 30 1.0-b.y. old North American igneous rocks. Samples representing a broad spectrum in petrographic type and mode of occurrence were chosen; an effort was made to include only rocks having...
Surface area of vermiculite with nitrogen and carbon dioxide as adsorbates
Josephus Thomas Jr., Bruce F. Bohor
1969, Clays and Clay Minerals (17) 205-209
Surface-area studies were made on several homoionic vermiculites with both nitrogen and carbon dioxide as adsorbates. These studies show that only very slight penetration occurs between individual vermiculite platelets. This is in contrast to an earlier investigation of montmorillonite where it was found that the degree of penetration between layers...
Heat flow measurements on the southeast coast of Australia
R.D. Hyndman, J.C. Jaeger, J.H. Sass
1969, Earth and Planetary Science Letters (7) 12-16
Three boreholes have been drilled for the Australian National University near the southeast coast of New South Wales, Australia. The heat flows found are 1.1, 1.0, and 1.3 μcal/cm2sec. The errors resulting from the proximity of the sea and a lake, surface...
Uranium, thorium, and lead systematics in Granite Mountains, Wyoming
J.N. Rosholt, A.J. Bartel
1969, Earth and Planetary Science Letters (7) 141-147
Uranium, thorium and lead concentrations and isotopic compositions were determined on total rocks and a feldspar sample from widely separated parts of the Granite Mountains in central Wyoming. Linear relations defined by206Pb/204Pb −207Pb/204Pb and208Pb/204Pb −232Th/204Pb for the total rock samples define 2.8...
Equipment and techniques for low-altitude aerial sensing of water-vapor concentration and movement
R.L. Howell
1969, Remote Sensing of Environment (1) 13-18
Progress in the development of equipment and techniques for making rapid measurements of moisture movement through the atmosphere over a large area is described. Airborne sensing elements measure relative humidity, temperature, and air currents. These data are telemetered to a ground-based station...
Fractionation of gold in a differentiated tholeiitic dolerite
J.J. Rowe
1969, Chemical Geology (4) 421-427
Gold content was determined, by neutron-activation analysis, in samples from a drill core through the Great Lake sheet, Tasmania, a differentiated tholeiitic dolerite. The gold content of parts of the core seems to be related to the mafic index. The variation of...
U.S. Geological Survey standards-II. First compilation of data for the new U.S.G.S. rocks
F.J. Flanagan
1969, Geochimica et Cosmochimica Acta (33) 81-120
Rock analyses, determinations of major and minor constituents, and determinations of 57 trace elements reported by analysts throughout the world are presented for the new series of U.S. Geological Survey rock samples. Averages for both the constituents generally reported in a rock analysis...
Geochemistry and hydrodynamics of the Paradox Basin region, Utah, Colorado and New Mexico
B.B. Hanshaw, G.A. Hill
1969, Chemical Geology (4) 263-294
The Paradox Basin region is approximately bounded by the south flank of the Uinta Basin to the north, the Uncompahgre uplift and San Juan Mountains to the east, the Four Corners structural platform to the southeast, the north rim of the Black Mesa Basin and the Grand Canyon to...
Dilemma posed by uranium-series dates on archaeologically significant bones from Valsequillo, Puebla, Mexico
Barney J. Szabo, H.E. Malde, C. Irwin-Williams
1969, Earth and Planetary Science Letters (6) 237-244
In an attempt to date stone artifacts of Early Man excavated from several sites at the Valsequillo Reservoir, a few kilometers south of Puebla, Mexico, Szabo applied the uranium-series method on bone samples known to be either from the same geologic formation as...
Quantitative comparison of peritoneal washes and feces for detecting infectious pancreatic necrosis (IPN) virus in carrier brook trout
J.L. Billi, K. Wolf
1969, Journal of the Fisheries Research Board of Canada (26) 1459-1465
Paired fecal samples and peritoneal washes were taken from 300 18-month-old brook trout for determining their relative value in detecting IPN virus. The testing of feces revealed 14 times as many carriers as were found by peritoneal washes. Initial examinations showed at least 63% of the fish to be carriers...
Interaction of antimycin A and rotenone in fish bioassays
Robert M. Howland
1969, Progressive Fish-Culturist (31) 33-34
No abstract available. ...
Rapid determination of filterable residue in natural waters
Herbert E. Allen, Charles W. Bacon
1969, Journal - American Water Works Association (61) 355-356
The most widely used procedures for determining filterable residue (total dissolved solids) in water are macromethods given in Standard Methods. Although macromethods give good results, they require large amounts of water and long drying times. This report describes a microtechnique for determining filterable residue that requires only 0.05...
Regional geologic map of San Andreas fault from Cholame area to Cuyama-Maricopa area, San Luis Obispo, Kern, and Kings Counties, California
T. W. Dibblee Jr.
1969, Open-File Report 69-72
No abstract available....
Phosphorus fractionation diagram as a quantitative indicator of crystallization differentiation of basaltic liquids
A. T. Anderson, L. P. Greenland
1969, Geochimica et Cosmochimica Acta (33) 493-505
Distribution factors of phosphorus (P in mineral/P in liquid) between phenocryst minerals and coexisting basaltic groundmass are: olivine (Fa20: 0.04 to 0.02; orthopyroxene (Fs20): 0.01; augite: 0.02 to 0.01; plagioclase: 0.02; ilmenite: 0.04. Because of the smallness of these distribution factors the ratio of phosphorus in the initial liquid to...
Comparison of thermal data from airborne and vessel surveys of Lake Erie
Alfred M. Beeton, James W. Moffett, Dana C. Parker
1969, Conference Paper, Proceedings of the 12th Conference on Great Lakes Research
A study of the applications of airborne infrared equipment for detecting water masses and currents of the Great Lakes is described. Infrared scanners were used to make thermal strip maps and an infrared radiometer was used to obtain surface temperatures of the western end of Lake Erie and the lower...
Use of flooded timber by waterfowl at the Montezuma National Wildlife Refuge
L.M. Cowardin
1969, Journal of Wildlife Management (33) 829-842
Waterfowl use of bottomland hardwood timber stands which were flooded and killed was studied at the Montezuma National Wildlife Refuge, Seneca Falls, New York, from 1962 to 1964. Comparisons of use were made among six habitat types containing dead timber, stumps, and no timber, and with and without emergent vegetation....
Landscape esthetics: How to quantify the scenics of a river valley
Luna Bergere Leopold
1969, Natural History 37-44
There are an increasing number of bills before Congress that in one way or another affect the landscape or the environment. Each of these requires seemingly endless numbers of congressional hearings, which are recorded upon endless reams of paper.And if, for some reason, you happen to read the voluminous testimony...
Thermochemical study of the system Fe-As-S
P. B. Barton Jr.
1969, Geochimica et Cosmochimica Acta (33) 841-857
The results of Toulmin and Barton (1964) for the Fe-S system have been combined with a series of new measurements on As-bearing assemblages in the 500°–850°C temperature range to derive data on the free energies, enthalpies, and entropies of formation for arsenopyrite, loellingite, orpiment, realgar,...
