Elizabeth B. Jaffe, A.M. Sherwood
1951, Open-File Report 51-69
No abstract available. ...
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Publication Extents
Not all publications have extents, not all extents are completely accurateMary H. Fletcher, Irving May, J.W. Anderson
1951, Open-File Report 51-65
Herman L. Bauer Jr.
1951, Trace Elements Memorandum 121
The Apache Trail uranium prospect in the White Signal district, Grant County. N. Mex., was mapped by the Geological Survey in May 1950. Pre-Cambrian granite is cut by a diabase dike and a parallel quartz-hematite vein, both of which strike easterly and dip 60 to 65 degrees north. Small quantities...
F. N. Ward
1951, Analytical Chemistry (23) 788-790
Reconnaissance work in geochemical prospecting requires a simple, rapid, and moderately accurate method for the determination of small amounts of molybdenum in soils and rocks. The useful range of the suggested procedure is from 1 to 32 p.p.m. of molybdenum, but the upper limit can be extended. Duplicate determinations on...
L.E. Reichen
1951, Analytical Chemistry (23) 727-729
The use of biogeochemical data in prospecting for nickel emphasizes the need for a simple, moderately accurate field method for the determination of nickel in plants. In order to follow leads provided by plants of unusual nickel content without loss of time, the plants should be analyzed and the results...
J.B. DeWitt, J.F. Welch, E. Bellack
1950, Modern Packaging (23) 123-126
In the course of studies involving more than 2,500 chemical repellents, it has been found that certain groups of- compounds containing nitrogen or sulfur are repellent to rats under the , test conditions and it appears probable that some of these compounds might be used for the protection of packaged...
W. P. Woodring, M. N. Bramlette
1950, Professional Paper 222
Stratigraphy, paleontology, and geologic history.-A basement' consisting of igneous rocks of the Jurassic(?) Franciscan formation and sediments of the Upper Jurassic Knoxville formation, and formations of Tertiary and Quaternary age are exposed in the Santa Maria district. The outcrop section, exclusive of the Franciscan, has a maximum thickness of about...
Donald G. Wyant, Ernest P. Beroni
1950, Trace Elements Investigations 61
A reconnaissance for sources of radioactive material in North Dakota and eastern Montana was made in 1948. This reconnaissance was followed by a more detailed survey of parts of Golden Valley and Slope counties, southwestern North Dakota, in June 1949. The radioactivity of representative sections of all formations known to be...
Burdge Irelan
1950, Open-File Report 50-78
This report is the fifth the a series of publications by the Texas Board of Water Engineers giving chemical analyses of the surface waters in the State of Texas. The samples for which data are given were collected between October 1, 1948 and September 30, 1949. During the water year...
Paul C. Tychsen, Herbert A. Swenson
1950, Circular 34
The Heart River irrigation project, in southwestern North Dakota, lies in the Missouri Plateau section of the Great Plains physiographic province, which extends from the Missouri escarpment to and beyond the western border of the State. The area ranges in altitude from 1,620 to 2,275 feet and locally has strong...
W. L. Broadhurst, S.D. Breeding
1950, Water Supply Paper 1079-B
Field work in the island of St. Croix, V. I., was carried on from December 1938 to April 1939 in connection with a test-drilling program for water sup- plies. The island is 21 miles long and has a maximum width of 6 miles. Its western part consists of a range...
George C. Taylor Jr., Remy C. Lemoine
1950, Report
The Gonaives Plain lies in northern Haiti at the head of the Gulf of Gonaives. Ground water in the plain is used widely for domestic and stock purposes but only to limited extent for irrigation. The future agricultural development of the plain will depend in large measure on...
J. E. Gair
1950, Geological Society of America Bulletin (61) 857-876
Deformation in the folded Cambrian to Devonian sedimentary rocks of the central Appalachians has been investigated, mainly in the Potomac River Valley. Interpretations of deforming mechanisms are based on the study of folds, rock cleavages, faults, and lineations. An attempt is made to present a kinematic analysis of deformation. Effects...
C. C. McDonald
1950, Eos, Transactions, American Geophysical Union (31) 930-934
The Weather Bureau activities in the runoff field during the 1949–1950 year centered largely around its flood and water supply forecasting activities. A new River Forecast Center was inaugurated at Portland, Oregon in January, 1950 to provide service for the Columbia River Basin and adjacent coastal areas. The first custom‐made...
Mary H. Fletcher, Irving May
1950, Trace Elements Investigations 120
The Model R fluorimeter has been modified to increase its stability and sensitivity. The new instrument* is about ten times as sensitive as the original fluorimeter, but it can also be employed conveniently at a sensitivity level comparable to or less than that of the Model R fluorimeter. *The modified fluorimeter...
Mary H. Fletcher, Irving May, Joseph W. Anderson
1950, Trace Elements Investigations 133
The transmission fluorimeter for the measurement of the fluorescence of uranium in fluoride melts is described. The instrument incorporates several improved features which have not been published previously. Unlike the earliest models, the design of the new fluorimeter, with its close machining of parts, reduces the possibility of light leakage...
T. A. Jaggar
1950, Report
After reviewing the work of sclerometry, this paper shows that yielding and relative softness are the mechanical basis of what should be called malacometry. The experiments have been made with diamond drills, ring cuts, end millers and grinding wheels.Auerbach's "limited scope of the Mohs list" is quantitatively confirmed. The wear...
F.J. Flanegan, J. M. Nelson, J.J. Warr Jr.
1950, Trace Elements Memorandum 142
The U.S. Geological Survey has recently modified the Tracerlab Automatic Sample Changer so that the geometry is greatly improved for counting larger low-activity samples in finely ground form. The larger sample and larger Geiger Mueller tubes allow a greater number of samples to be counted per hour with the same...
E. Bellack, J.B. DeWitt
1949, Journal of the American Pharmaceutical Association, Scientific Edition (39) 197-202
In order to bridge the gap between preliminary screening of chemicals for potential rodent repellency and the application of these compounds to paper cartons, more advanced studies in the evaluation of promising materials have been carried out. These studies have resulted in: (1) a modification of the food acceptance technique...
Isidore Zietz, Roland G. Henderson
1949, Open-File Report 49-9
The eight attached maps were constructed from data taken on Project Volcano in the summer of 1947. The project was sponsored by the Office of Naval Research and conducted by the U.S. Geological Survey in cooperation with the Naval Ordnance Laboratory. Field work was done by Fred Keller, Jr., and...
Charles L. McGuinness, O.F. Poindexter, E. G. Otton
1949, Water Supply Paper 1078
As of the date of this report (August 1945), the major water users in the Ypsilanti area are: (1) the city of Ypsilanti, (2) the Willow Run bomber plant, built by the Federal Government and operated by the Ford Motor Co., and (3) the war housing project of the Federal...
F.M. Byers Jr., W. W. Brannock
1949, Eos, Transactions, American Geophysical Union (30) 719-734
As part of the United States Geological Survey's volcano program in the Aleutian volcanic arc during 1946–1948, the volcanoes and thermal areas on Umnak and Great Sitkin Islands were studied. In addition to observation of the volcanoes, temperatures of fumaroles were measured and some products of the volcanic activity were...
K.O. Emery, J. I. Tracey Jr., H. S. Ladd
1949, Eos, Transactions, American Geophysical Union (30) 55-58
The atomic bomb tests at Bikini in 1946 provided an opportunity to study the characteristics of atolls using modern surveying techniques. The work has shown that many of the important features, both above and below sea level, are definitely related to the direction of the prevailing winds, waves, and currents....
T. A. Jaggar
1949, Report
The investigation is concerned with the author's expedition to Martinique and St. Vincent in 1902 and comparison of the experience of investigators and sufferers with that of others in so-called "explosive" eruptions. The Hawaiian mechanism is reviewed with special reference to rifts, underground water, intrusion furnace, wedge rupture, and lowering...
John Van Oosten
1949, The Fisherman (17) 6, 9-10
SUMMARY: The Peromyscus leucopus on a 17-acre study area were live-trapped, marked, and released over a seven-day period. On the three following nights intensive snap-trapping was done on the central acre of the study plot. The animals caught by snap traps in...