Preliminary report on the general geology and engineering geology of Noonan quadrangle, North Dakota
R. C. Townsend
1947, Report
The Noonan quadrangle is in northwestern North Dakota adjacent to the Dominion of Canada and approximately 35 miles east of Montana. The small coal-mining, farm, and railroad town of Noonan is located near the eastern edge of this sparsely populated area. The east-west State Highway 5 bisects the quadrangle.Cultural development...
Delineation of parallel folds and measurement of stratigraphic dimensions
J.B. Mertie Jr.
1947, Geological Society of America Bulletin (58) 779-802
The delineation of parallel folds in structural sections, and the extraction therefrom of stratigraphic information, has generally been done with considerable personal interpretation. If profiles must be drawn, or sections measured, from structural observations used in pairs, this is unavoidable; but superior results may be obtained if more than two...
Stratigraphy and structure of the area of the Meade and Kuk Rivers and Point Barrow, Alaska
Edward J. Webber
1947, Geological Investigations, Naval Petroleum Reserve No. 4, Alaska 6
This report incorporates the results of field and. laboratory studies, from June 1946 through March 1947, of the stratigraphy and. structure of the area of the Meade and Kuk Rivers and Point Barrow, Alaska. The Investigations were made by the Geological Survey as part of the Navy Department's program of...
Stratigraphy and structure of the area of the Kurupa, Oolamnagavik, Killik, and Colville Rivers
Robert M. Chapman, R. F. Thurrell Jr.
1947, Geological Investigations, Naval Petroleum Reserve No. 4, Alaska 5
The area between 68° 3C' and 69° 08 N. latitude and between 154° and 155° 20 W. longitude was covered by U. S. Geological Survey party 4 during the period May 18 to September 2. Traverses were confined mainly to the valleys of the Kurupa, Oolamnagavik, and Colville Rivers inasmuch...
Part 3: Volcano investigations on Umnak Island, 1946
F. M. Byers Jr., D.M. Hopkins, K. L. Wier, Bernard Fisher
1947, Report, Alaskan Volcano Investigations Report No. 2
Umnak Island is a dumbbell-shaped island in the eastern part of the Aleutian Islands. The island is 70 miles long and trends northeast-southwest. During 1946 volcano investigations were begun on the island and geologic mapping of most of northeastern Umnak Island was completed.Okmok Volcano, a large, broad volcanic mountain rising...
Preliminary report on the stratigraphy and structure of the Titaluk and upper Ikpikpuk Rivers, Alaska
Edward J. Webber
1947, Geological Investigations, Naval Petroleum Reserve No. 4, Alaska 18
Geological Survey Party No. 4 was assigned an investigation of the Ikpikpuk and Titaluk Rivers and East Fork of the Ikpikpuk River mainly for the purpose of obtaining stratigraphic information which would be of use in determining the parts of the Upper Cretaceous sequence that underlie the areas investigated by...
Preliminary report on the stratigraphy and structure of the area of the Utukok River with notes on the Corwin-Cape Beaufort region, Alaska
Raymond M. Thompson, W. L. Barksdale
1947, Geological Investigations, Naval Petroleum Reserve No. 4, Alaska 17
U.S. Geological Survey Party 3 studied the geology of the Utukok River area and conducted a short reconnaissance of the Corwin-Cape Beaufort Region during the period May 12 to August 31, 1947. The upper part of the Utukok River was examined for several miles on either side while the lower,...
Preliminary report of the stratigraphy and structure of the area of the Colville River from Ipnavik to Kurupa Rivers, Alaska
R. F. Thurrell Jr.
1947, Geological Investigations, Naval Petroleum Reserve No. 4, Alaska 15
No abstract available....
Thrust faults and related structures in eastern Cuba
T. 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...
Survey‐net adjustment by electrical analogue
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...
Activity of Parícutin volcano from December 1, 1946 to March 31, 1947 patterns
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...
Origin of the hot springs at Hot Springs, North Carolina
G. W. Stose, Anna Stose
1947, American Journal of Science (245) 624-644
No abstract available. ...
Stratigraphy of the upper Cambrian, Llano Uplift, Texas
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...
Flysch and molasse
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...
Chemical analyses and calculated modes of the Oliverian magma series, Mt. Washington Quadrangle, New Hampshire
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...
Geology of the Borah Peak quadrangle, Idaho
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...
Suggestions as to future research in ground‐water hydrology
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...
Scheelite in the Boulder District, Colorado
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...
Activity of Paricutin volcano from December 1, 1946 to March 31, 1947 patterns
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...
Value of the electrical log for estimating ground‐water supplies and the quality of the ground water
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...
Virginia titanium deposits
Clarence S. Ross
1947, Economic Geology (42) 194-198
No abstract available....
The beryl resources of Connecticut
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...
The zinc content of plants on the Freidensville zinc slime ponds in relation to biogeochemical prospecting
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...
Ground-water conditions and problems in the Upper Mississippi River Embayment
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...
Annual fur catch of the United States
Frank G. Ashbrook
1947, Wildlife Leaflet 298
No abstract available....
