R. F. Thurrell Jr.
1947, Geological Investigations, Naval Petroleum Reserve No. 4, Alaska 15
No abstract available....
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Publication Extents
Not all publications have extents, not all extents are completely accurateT. P. Thayer, P. W. Guild
1947, Eos, Transactions, American Geophysical Union (28) 919-930
Detailed areal mapping in central Camagüey Province and reconnaissance mapping in northern and eastern Oriente Province, Cuba, have revealed two major structural zones: (1) A zone of intense deformation, including thrust faulting, which lies north of the geographic axis of the island; and (2) a belt of domical mountains bounded...
J. L. Speert
1947, Eos, Transactions, American Geophysical Union (28) 831-837
This paper describes how the equivalent of a least‐squares adjustment of a level or traverse net may be obtained by electrical measurements in an analogous electrical net. The lengths of the survey lines are replaced by proportional electrical resistances; the survey closures are replaced by proportional small dc voltages; the...
R.E. Wilcox
1947, Article
A record of the activity of Parícutin Volcano, Michoacán, Mexico, is shown in the diagram of eruptive characteristics, Figure 1, covering the period December 31, 1946 to March 31, 1947, and is supplemented by the maps of the areal extent of the lava flows, Figures 2 and 3. This continues...
G. W. Stose, Anna Stose
1947, American Journal of Science (245) 624-644
No abstract available. ...
Josiah Bridge, V.E. Barnes, P. E. Cloud Jr.
1947, GSA Bulletin (58) 109-124
The two formations and eight members that constitute the Upper Cambrian in the Llano uplift of central Texas are described or redefined, and their lithic characters in 19 measured sections are graphically summarized. Standard reference to them is thus furnished.The Riley formation comprises the basal Paleozoic strata of the Llano...
A.J. Eardley, Max G. White
1947, GSA Bulletin (58) 979-990
By definition European geologists consider a sequence of limestones, sandstones, and shales, the beds of which are thin, regular, and alternating, and which are deposited in a geosyncline or foredeep shortly before a major orogeny, as the flysch. The waste products that accumulate as a deposit flanking mountains and built in...
M.P. Billings, J.C. Rabbitt
1947, GSA Bulletin (58) 573-596
Complete chemical analyses, including the spectrographic determination of 44 trace elements, have been made of six representative specimens from each of the six map units constituting the Oliverian magma series in the Mt. Washington quadrangle of New Hampshire. Potash is systematically higher than soda. An increase in silica, which ranges...
C. P. Ross
1947, GSA Bulletin (58) 1085-1160
This report is on result of a long program of geologic investigation in south-central Idaho, undertaken as an aid in the development of the mineral resources of the region. This quadrangle was examined because of the exceptional opportunities for the study of stratigraphy and structure afforded by the Lost River...
O. E. Meinzer
1947, Eos, Transactions, American Geophysical Union (28) 418-420
Determination of the ground‐water supply available from any aquifer or in any specified area requires not merely the application of specific quantitative methods but also a broad and accurate knowledge of the geologic, hydrologlc, and geochemical factors that are involved, and consideration of the economic and legal limitations. Further research...
Ogden Tweto
1947, Economic Geology (42) 47-59
Scheelite accompanies ferberite as an ore of tungsten at many localities in the Boulder tungsten district. It is only of accessory importance in most veins, but in a few mines it affects grade of the ore substantially. It occurs in small veins, in vugs, disseminated in sericitized rock, and in...
Ray E. Wilcox
1947, Eos, Transactions, American Geophysical Union (26) 725-731
A record of the activity of Parícutin Volcano, Michoacán, Mexico, is shown in the diagram of eruptive characteristics, Figure 1, covering the period December 31, 1946 to March 31, 1947, and is supplemented by the maps of the areal extent of the lava flows, Figures 2 and 3. This continues...
B.A. Barnes, Penn Livingston
1947, Eos, Transactions, American Geophysical Union (28) 903-911
This paper gives a brief summary of studies of the value of the electrical log for estimating ground‐water supplies and the quality of the water in them made in Texas by the United States Geological Survey and cooperating parties.The electrical log has been found to be especially valuable in the...
Clarence S. Ross
1947, Economic Geology (42) 194-198
No abstract available....
Eugene N. Cameron, Vincent E. Shainin
1947, Economic Geology (42) 353-367
In 1942-44, about 120 Connecticut pegmatites were examined for beryl and other minerals during investigations by the Federal Geological Survey. Most of the pegmatites lie in the Middletown district, occurring principally in the Bolton schist and Monson gneiss. The pegmatites range from distinctly zoned bodies to those that are essentially...
W. O. Robinson, Hubert William Lakin, Laura E. Reichen
1947, Economic Geology (42) 572-582
The zinc content of thirty different kinds of plants growing on slime ponds containing on the average 12.5 per cent zinc were determined by the dithizone method. The zinc content ranged from 39 p.p.m. in the fruit of the false solomon's seal (Smilacina racemosa) to 5,400 in the horsetail (Equiseteum...
Robert Schneider
1947, Economic Geology (42) 626-633
The Upper Mississippi River Embayment is a region of about 45,000 square miles in the Mississippi River Valley extending from the vicinity of the 34th parallel northward to the mouth of the Ohio River. It includes parts of Arkansas, Mississippi, Tennessee, Kentucky, and Missouri. In 1940 about 2,700,000 people inhabited...
Frank G. Ashbrook
1947, Wildlife Leaflet 298
No abstract available....
Charles Lee McGuinness
1947, Economic Geology (42) 563-571
Puerto Rico, the easternmost and smallest of the Greater Antilles, has an axis of deformed and metamorphosed volcanic rocks of Upper Cretaceous age, intruded by dioritic rocks during the Antillean revolution. The hard-rock core is flanked on the north and south by limestones and clastic rocks of late Oligocene and...
Gustav Adolph Swanson, Lee Emmett Yeager
1947, Wildlife Leaflet 296
No abstract available....
Neil Hotchkiss, Robert E. Stewart
1947, American Midland Naturalist (38) 1-75
No abstract available....
Esper S. Larsen Jr., N.B. Keevil
1947, GSA Bulletin (58) 483-494
Determination of radioactivity has been made on 43 rocks, carefully selected from the different mapped units of the complex Cretaceous batholith of Southern California; they range from gabbro to granite. The activity of the gabbro averages about 0.3 alphas/mg./hr., that of the tonalites, 0.8, the granodiorite 1.3, and the granites...
P. W. Guild
1947, Eos, Transactions, American Geophysical Union (28) 218-246
Chromite deposits In the Moa district, on the north coast of Oriente Province, Cuba, form one facies of the ultramafic complex in which they occur. Two planar structures, one a compositional layering due to variations in the relative proportions of olivine, pyroxene, plagioclase feldspar, and chromite, and the other a...
Harris R. McDonald, Henry Newton Wolcott, John David Hem
1947, Report
No abstract available....
A.P. Butler Jr., F.W. Stead
1947, Trace Elements Investigations 36
The Geological Survey's program of investigation of radioactive raw materials is presented herewith under present investigations, plans for future investigations, plan of operation, and cost of operation. This report was prepared at the request of the Atomic Energy Commission. Present investigations are summarized to show the scope of the present Trace...