Comparative acute oral toxicity of pesticides to six species of birds
Richard K. Tucker, M. A. Haegele
1971, Toxicology and Applied Pharmacology (20) 57-65
Acute oral LD50 values were determined for 16 common pesticides on mallard ducks (Anas platyrhynchos), ring-necked pheasants (Phasianus colchicus), chukar partridges (Alectoris graeca), coturnix quail (Coturnix coturnix japonica), common pigeons (Columba livia), and house sparrows (Passer domesticus). Analyses of the data revealed that...
On the nature of the Boulder Batholith of Montana
M. R. Klepper, G.D. Robinson, H.W. Smedes
1971, Geological Society of America Bulletin (82) 1563-1580
In a recent review of the nature of batholiths, Hamilton and Myers (1967) interpreted the Boulder batholith of western Montana to be "in effect a gigantic mantled lava flow .... only a few kilometers thick," that flowed, under a crust of its own ejecta, across a broad structural basin. Such...
Liberian age province (about 2,700 m.y.)and adjacent provinces in Liberia and Sierra Leone
Patrick M. Hurley, G. W. Leo, R.W. White, H.W. Fairbairn
1971, Geological Society of America Bulletin (82) 3483-3490
Whole-rock Rb-Sr dating of rocks from the crystalline basement has disclosed an age province in Liberia and Sierra Leone of about 2,700 m.y. The approximate eastern boundary of this province with the adjoining Eburnean age province of about 2,000 m.y. has been found in eastern Liberia. Much younger rocks of...
Liberian age province (about 2,700 m.y.)and adjacent provinces in Liberia and Sierra Leone
P.W. Hurley, G. W. Leo, R.W. White, H.W. Fairbairn
1971, Geological Society of America Bulletin (82) 3483-3490
Whole-rock Rb-Sr dating of rocks from the crystalline basement has disclosed an age province in Liberia and Sierra Leone of about 2,700 m.y. The approximate eastern boundary of this province with the adjoining Eburnean age province of about 2,000 m.y. has been found in eastern Liberia. Much younger rocks of...
Paleozoic metasediments in the northern Ruby Mountains, Nevada
Keith A. Howard
1971, GSA Bulletin (82) 259-264
New evidence indicates that high-grade regionally metamorphosed marble and quartzite in the northern Ruby Mountains are Paleozoic strata. Correlation is based on a match of the lithologic sequence to strata of Cambrian to Devonian age in nearby areas; particularly diagnostic is a brown dolomite at the...
Impact breccias in carbonate rocks, Sierra Madera, Texas
H. G. Wilshire, Keith A. Howard, Terry W. Offield
1971, GSA Bulletin (82) 1009-1018
Two main types of deformational breccia occur in the Sierra Madera cryptoexplosion structure: monolithologic breccias composed of shattered rock of a single lithology and mixed breccias composed of rocks of several lithologies. Monolithologic breccias generally show no mineralogic signs of shock deformation, but a few samples are shatter-coned in a...
The Apollo 10 lunar highlands
Keith A. Howard
1971, Report, Analysis of Apollo 10 photography and visual observations
No abstract available....
Structural implications of an offset Early Cretaceous shoreline in northern California
D. L. Jones, W. P. Irwin
1971, GSA Bulletin (82) 815-822
Recognition of a nonmarine to marine transition in sedimentary rocks at Glade Creek and Big Bar in the southern Klamath Mountains permits reconstruction of the approximate position of a north-trending Early Cretaceous (Valanginian) shoreline. At the southern end of the Klamath Mountains, the shoreline is displaced 60 mi or more...
The earthquake sequence near Danville, California, 1970
W.H.K. Lee, M.S. Eaton, E. E. Brabb
1971, Bulletin of the Seismological Society of America (61) 1771-1794
Several thousand small earthquakes, with magnitudes ranging up to 4, occurred near Danville, California, during May, June, and July 1970. Seven temporary seismographs were installed near the epicentral region to augment an existing telemetered network within 1 day after the first felt earthquake. The dense concentration of 10 seismographs within...
Investigations at active volcanoes
Thomas L. Wright
1971, Eos, Transactions, American Geophysical Union (52) 57-62
The field of volcanology has expanded greatly in the years 1967–1970, and work on active volcanoes has kept pace with this expansion. I have restricted this summary and the accompanying bibliography to studies by U.S.‐based investigators of active or potentially active volcanoes. I have been immeasurably aided in writing this...
Origin of the differentiated and hybrid lavas of Kilauea Volcano, Hawaii
Thomas L. Wright, Richard S. Fiske
1971, Journal of Petrology (12) 1-65
Kilauea Volcano has erupted lava from its summit caldera and from two rift zones that extend from the summit towards the east and south-west. Lavas erupted from the summit of the volcano differ from each other principally in their content of olivine and define lines of ‘olivine control’ on magnesia...
Interpretation of an aeromagnetic strip across the northwestern United States
Isidore Zietz, B. Carter Hearn, Michael W. Higgins, G. D. Robinson, Donald A. Swanson
1971, Bulletin of the Geological Society of America (82) 3347-3372
This report discusses the results of aeromagnetic survey bounded by latitudes 45°30′ N. and 47°00′ N. and extending from the Rocky Mountains, to approximately 120 mi offshore in the Pacific Ocean. East of the Rocky Mountains, a larger area has been surveyed in the Great Plains bounded approximately by latitudes...
Discussion on “Parameter Estimation in Hydrology: The State of the Art” by Donald R. Jackson and Gert Aron
Clayton H. Hardison
1971, Journal of the American Water Resources Association (7) 1253-1254
No abstract available...
Small plate tectonics in the northeastern Pacific
Eli A. Silver
1971, Bulletin of the Geological Society of America (82) 3491-3496
Lithospheric plate motions in the northeastern Pacific were complicated at about 2.5 m.y. B.P. by the movement along a major northeast-trending fault cutting Cascadia Basin. An estimate of the slip rate along this fault gives critical information on the relative motions of four geometrically interdependent...
Upper Cenozoic basalts with high Sr87/Sr86 and Sr/Rb ratios, southern Great Basin, western United States
Carl E. Hedge, Donald C. Noble
1971, Bulletin of the Geological Society of America (82) 3503-3509
Upper Cenozoic basalts from southwestern Nevada and east-central California are unusually rich in both strontium (~ 1,200 ppm) and Sr87 (initial Sr87/Sr86 ~ 0.707). The average Rb/Sr ratio of these basalts is too low to have generated the observed Sr87/Sr86 ratio during the 4.6 b.y. of the Earth's...
Thin skin distension in Tertiary rocks of southeastern Nevada: Reply
R. Ernest Anderson
1971, Bulletin of the Geological Society of America (82) 3533-3536
No abstract available....
Status of engineering geologic and environmental geologic mapping in the United States
Dorothy H. Radbruch
1971, Bulletin of the International Association of Engineering Geology (4) 4-14
1. Engineering geologic maps in the United States may be one map prepared as part of a larger study of environmental geology, individual areal geologic maps containing additional engineering geologic data, or engineering geologic maps of single construction sites.2. No systematic methodology for engineering geologic or environmental geologic maps has...
Fur catch in the United States, 1970
U.S. Bureau of Sport Fisheries and Wildlife
1971, Wildlife Leaflet 499
No abstract available....
Thin skin distension in Tertiary rocks of southeastern Nevada: Discussion
George A. Thompson
1971, Bulletin of the Geological Society of America (82) 3529-3531
No abstract available....
Tertiary igneous chronology of the Great Basin of western United States — Implications for tectonic models
Edwin H. McKee
1971, Bulletin of the Geological Society of America (82) 3497-3501
The chronology of igneous activity in the Great Basin of western United States is used as a time framework for a simple plate model. This chronology suggests that a plate (Farallon plate) became underthrust to sufficient depth by the middle Tertiary to trigger the eruption...
Comment about the origin of micrinite
James M. Schopf
1971, Economic Geology (66) 1153-1156
The granular micrinite in coal may result from the same process that acts during the peat stage to form fusain but dispersed humic matter, rather than organized plant tissue, seems to be involved in micrinite formation. The closely sized micrinite granules that occur in cell...
The impact of the introduction of duck virus enteritis (duck plague) to the commercial duck industry and other waterfowl in the United States
J.T. Walker, William D. Urban, H.E. Nadler, Louis N. Locke
1971, Conference Paper, XIV World's poultry congress
No abstract available....
Evolving subduction zones in the western United States, as interpreted from igneous rocks
P. W. Lipman, H.J. Prostka, R.L. Christiansen
1971, Science (174) 821-825
Variations in the ratio of K2O to SiO2 in andesitic rocks suggest early and middle Cenozoic subduction beneath the western United States along two subparallel imbricate zones dipping about 20 degrees eastward. The western zone emerged at the continental margin, but the eastern zone was entirely beneath the continental plate. Mesozoic...
Phosphate detergents
Gretchen Luepke
1971, Nature (234) 113-113
No abstract available....
Ground-water pumpage in parts of Merced, Madera, Fresno, Kings, and Tulare Counties, California, 1962-66
Hugh T. Mitten, William Ogilbee
1971, Report
Quantitative estimates of ground-water pumpage from the principal ground-water basins in California are necessary for future appraisal studies, for constructing hydrologic models, and for systematic planning of water use and conservation. Methods of estimating pumpage for this report are based on metered pumpages, on electric-power consumption and fuel consumption by...
