Blueschist-facies metamorphism related to regional thrust faulting
M.C. Blake Jr., W. P. Irwin, R. G. Coleman
1969, Tectonophysics (8) 237-246
Rocks of the blueschist (glaucophane schist) facies occur throughout the world in narrow tectonic belts associated with ultramafic rocks. In the Coast Range province of California, blueschist rocks are devloped in the eugeosynclinal Franciscan Formation of Late Mesozoic age. The blueschist rocks form a narrow belt for more than 800...
Environmental impact of the Big Cypress Swamp jetport
U.S. Department of the Interior
1969, Report
Development of the proposed jetport and its attendant facilities will lead to land drainage and development for agriculture, industry, housing, transportation, and services in the Big Cypress Swamp which will inexorably destroy the south Florida ecosystem and this the Everglades National Park....
Geologic map of the Samuels quadrangle, north-central Kentucky
Roy Clark Kepferle
1969, Geologic Quadrangle 824
No abstract available....
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...
Mallard hatching from an egg cracked by freezing
R. J. Greenwood
1969, The Auk (86) 752-754
The eggs of early-nesting waterfowl in North Dakota are frequently exposed to subfreezing temperatures. Mallards (Anas platyrhynchos) and Pintail (Anas acuta), normally the first ducks to arrive in the spring, begin limited early nesting in min-April. Nighttime temperatures during this period frequently drop below freezing, and late spring blizzards are...
Records of precipitation, aquifer head, and ground-water recharge to the Edwards and associated limestones, San Antonio area, Texas, 1968
Paul Rettman
1969, Edwards Underground Water District Bulletin 21
No abstract available....
Insecticides and the Great Lakes
Robert E. Reinert
1969, Limnos (2) 3-9
Cracks in the perfect image of DDT appeared when traces of the insecticide began to show up in a wide variety of organisms throughout the world. As more and more people investigated this problem, it became increasingly evident that terrestrial and aquatic animals were accumulating comparatively high concentrations of...
Seasonal fluctuations of Lake Michigan diatoms
Ruth E. Holland
1969, Limnology and Oceanography (14) 423-436
Diatoms were collected in four areas of Lake Michigan and in southern Green Bay from April to early November 1965. The flora of the lake was characterized by Fragilaria crotonensis, Tabellaria flocculosa, Melosira islandica, Cyclotella 'glomerata-stelligera,' Cyclotella michiganiana, Asterionella formosa, and Stephanodiscus tenuis. Stephanodiscus niagarae always dominated the diatom biomass...
Evaluation of lamprey larvicides in the Big Garlic River and Saux Head Lake
Patrick J. Manion
1969, Journal of the Fisheries Research Board of Canada (26) 3077-3082
Bayluscide (5,2′-dichloro-4′-nitrosalicylanilide) and TFM (3-trifluoromethyl-4-nitrophenol) were evaluated as selective larvicides for control of the sea lamprey, Petromyzon marinus, in the Big Garlic River and Saux Head Lake in Marquette County, Michigan. Population estimates and movement of ammocetes were determined from the recapture of marked ammocetes released before chemical treatment. In 1966...
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,...
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...
The determination of nanogram amounts of Chromium in urine by x-ray fluorescence spectroscopy
K. Beyermann, H. J. Rose Jr., R.P. Christian
1969, Analytica Chimica Acta (45) 51-55
Nanogram amounts of chromium can be extracted as oxinate into chloform. By treatment of the chloroform layer 3 M hydrochloric acid, oxinates of other elements and excess of reagent are removed, leaving a chloroform solution of the chromium chelate only. This solution is concentrated and transferred to...
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...
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....
Lamprey control in the United States
Bernard R. Smith, Everett Louis King
1969, Annual Report 1968
No abstract available....
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 ±...
Selective feeding by juvenile diving ducks in summer
James C. Bartonek, J.J. Hickey
1969, The Auk (86) 443-457
Waterfowl often fail to use foods that seem plentiful to the investigator. The extent to which selective feeding or rejection of foods is a function of behavioral and morphological adaptations of the species, conditioned behavior of the individual, or individual preference for certain foods has not been appraised. The objectives...
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,...
40Ar/36Ar analyses of historic lava flows
G. B. Dalrymple
1969, Earth and Planetary Science Letters (6) 47-55
The ratio40Ar/36Ar was measured for 26 subaerial historic lava flows. Approximately one-third of the samples had40Ar/36Ar ratios either higher or lower than the atmospheric value of 295.5 at the 95% confidence level. Excess radiogenic40Ar in five flows ranged from about 1 ×...
Toxicity of quinaldine to selected fishes
L. L. Marking
1969, Investigations in Fish Control 23
Abstract not submitted to date...
Water in Kentucky
Robert A. Krieger, Robert Vittum Cushman, N.O. Thomas
1969, Kentucky Geological Survey Special Publication 16-10
No abstract available....
Nesting of the upland plover on the Missouri Coteau
K.F. Higgins, Harold F. Duebbert, R.B. Oetting
1969, Prairie Naturalist (1) 45-48
Abstract has not been submitted...
Interaction of antimycin A and rotenone in fish bioassays
Robert M. Howland
1969, Progressive Fish-Culturist (31) 33-34
No abstract available. ...
Saline water in southeastern New Mexico
W. L. Hiss, J.B. Peterson, T.R. Ramsey
1969, Chemical Geology (4) 341-360
Saline waters from formations of several geologic ages are being studied in a seven-county area in southeastern New Mexico and western Texas, where more than 30,000 oil and gas tests have been drilled in the past 40 years. This area of 7,500 sq. miles, which is stratigraphically complex, includes...
Geochemistry and origin of formation waters in the western Canada sedimentary basin-I. Stable isotopes of hydrogen and oxygen
B. Hitchon, I. Friedman
1969, Geochimica et Cosmochimica Acta (33) 1321-1349
Stable isotopes of hydrogen and oxygen, together with chemical analyses, were determined for 20 surface waters, 8 shallow potable formation waters, and 79 formation waters from oil fields and gas fields. The observed isotope ratios can be explained by mixing of surface water...
