Stratigraphy and structure of the area of the Utukok River with notes on the Corwin-Cape Beaufort region, Alaska
W. L. Barksdale, R. M. Thompson
1948, Geological Investigations, Naval Petroleum Reserve No. 4, Alaska 18
No abstract available....
Stratigraphy and structure of the area of the Titaluk River and upper part of Ikpikpuk River, Alaska
1948, Geological Investigations, Naval Petroleum Reserve No. 4, Alaska 16
No abstract available....
Application of Brianchon's theorem to construction of geologic profiles
J.B. Mertie Jr.
1948, Geological Society of America Bulletin (59) 767-786
Brianchon's theorem states that the three diagonals joining opposite vertices of a hexagon circumscribed about a conic are concurrent. A corollary of this theorem applies to a pentagon so that the points of tangency of an inscribed conic may be located. Any five non-concurrent straight lines in a plane, no...
Preliminary report on the stratigraphy and structure of the area of the Ipnavik River, Alaska
Karl Stefansson
1948, Geological Investigations, Naval Petroleum Reserve No. 4, Alaska 16
Geological Survey Party 1 returned to Umiat from Wolf Creek on August 5. Plans for the field season of 1947 called for geologic reconnaissance along part of the Ipnavik River and along the Colville River between the Ipnavik and Kurupa Rivers, to be completed before the end of the season....
Organizations and officials concerned with wildlife protection: 1948
Mary Louise Hommel
1948, Wildlife Leaflet 313
No abstract available....
Areal evaluation of petroleum possibilities of major stratigraphic units in northern Alaska
T. G. Payne
1948, Geological Investigations, Naval Petroleum Reserve No. 4, Alaska 24
No abstract available....
Abstract of fur laws, 1948-49
Frank G. Ashbrook
1948, Wildlife Leaflet 316
No abstract available....
Some solutional features of the limestone near Lexington, Kentucky
D.K. Hamilton
1948, Economic Geology (43) 39-52
Field work on the Ordovician limestones and shales of the Lexington area, Kentucky, has shown that no appreciable quantity of ground water is transmitted through interstitial openings in these rocks. Ground-water movement is restricted to joint planes and, to a lesser extent, bedding planes that have been enlarged by solution....
Annual rainfall and runoff in New England
J.J. McAleer, C. E. Knox
1948, Eos, Transactions, American Geophysical Union (29) 903-908
This paper presents the results of studies of average rainfall and runoff, developed in the Office of the Division Engineer, New England Division, United States Corps of Engineers, in cooperation with the District Engineer, United States Geological Survey, and prepared in connection with flood‐control studies of the Connecticut and Merrimack...
Lava movement at Parícutin Volcano, Mexico
K.B. Krauskopf
1948, GSA Bulletin (59) 1267-1284
The lava flows of Parícutin Volcano, Mexico, offer an exceptional opportunity to study details of lava movement, because many flows are accessible throughout their length and can be watched from their birth to the cessation of their movement. Petrographically the lavas show no significant difference from one flow to another...
Submarine geology of Bikini atoll
K.O. Emery
1948, GSA Bulletin (59) 855-860
The program of investigations made in connection with the atomic bomb tests in the summer of 1946 at Bikini Atoll provided a rare opportunity for obtaining information on the physiography and sediments of atolls. The outer slopes around Bikini Atoll rise from a depth of...
Age of the Kingsbury conglomerate is Eocene
Roland W. Brown
1948, GSA Bulletin (59) 1165-1172
The Kingsbury conglomerate and immediately overlying gravels on the east side of the Bighorn Mountains in Wyoming interfinger eastward with “Wasatch” strata. The latter contain Eocene vertebrates, species of which have been found in the Kingsbury conglomerate. In addition, the “Wasatch” strata contain an Eocene...
Quality of water in the upper Colorado River basin
C. S. Howard
1948, Eos, Transactions, American Geophysical Union (29) 375-378
In a drainage area as large as the Colorado River Basin there are naturally large differences in the quality of the surface waters. The chemical character of the water at six gaging stations on the Colorado River from near the headwaters to near the mouth is shown by the analyses...
Fluctuations in concentration of dissolved solids of some southwestern streams
J.D. Hem
1948, Eos, Transactions, American Geophysical Union (29) 80-84
The concentration of dissolved solids in waters of streams of the Southwestern United Stated fluctuates widely as the stream discharge changes. These fluctuations may be extensive in a period of a few days or even a few hours. Data in this paper show the extent of the day‐to‐day changes in...
Geology and ground-water resources of Iwo Jima
F. A. Swenson
1948, GSA Bulletin (59) 995-1008
Iwo Jima, in the western Pacific Ocean, consists of Motoyama, a broad volcanic cone, at the north, and Mt. Suribachi at the south, with an undulating isthmus between. Motoyama is largely light-gray-buff tuff. A thick andesitic lava flow under Suribachi, exposed in several places, is overlain by a thick deposit...
Reefs of Bikini, Marshall Islands
J. I. Tracey Jr., H.S. Lapham, J. E. Hoffmeister
1948, GSA Bulletin (59) 861-878
Systematic surveys made at Bikini before and after the atomi bomb tests (Operation Crossroads) in the summer of 1946 afforded an unusual opportunity to examine the reefs and islands of one of the larger atolls of Micronesia. The existing reef appears to be developed on an older surface that extends...
Precedence of modern plant names over names based on fossils
James M. Schopf
1948, Science (108) 483
No abstract available....
Mineralogy and petrology of the currant creek magnesite deposits and associated rocks of Nevada
George T. Faust, Eugene Callaghan
1948, GSA Bulletin (59) 11-74
Cryptocrystalline magnesite occurs as relatively small dense, white masses in a Tertiary volcanic tuff, here named the Currant tuff, in White Pine and Nye counties, 29 miles southwest of Ely, Nevada. The deposits are small, but some of the magnesite is of very high quality with almost no iron or...
Petrography of Iwo Jima
G. A. Macdonald
1948, GSA Bulletin (59) 1009-1018
The rocks of Iwo Jima are augite and augite-hornblende trachyandesites, distinctly more alkalic than the ordinary andesites of Japanese volcanoes or the average world andesite. They are described, and chemical analyses are listed. Fumarolic gases have altered some rocks to a mixture of opal and clay minerals and have cemented...
Report of the Research Committee on Runoff, 1947–1948
C. C. McDonald
1948, Eos, Transactions, American Geophysical Union (29) 923-926
Since 1946, the Committee has given consideration to terminology as related to the field of runoff. As the science of hydrology develops, there is increasing need for a more definite and uniform terminology in order to promote use of more precise language in technical literature. While it may not be...
Report of Committee on Ground Water, 1945–1946
S. W. Lohman
1948, Eos, Transactions, American Geophysical Union (29) 117-123
The principal activity of the Committee during the year was the arranging and presentation of a symposium on methods of estimating ground‐water supplies. The response was gratifying and resulted in the presentation of 11 interesting papers at the 1946 meeting. The report of the Subcommittee on Permeability by C. E....
Development of limestone reservoirs in Comal County, Texas
W.O. George
1948, Eos, Transactions, American Geophysical Union (29) 503-510
The Edwards limestone, and to a lesser extent the Comanche Peak limestone and the lower part of the Glen Rose limestone below, all of Lower Cretaceous age, form one of the most extensive ground‐water reservoirs in Texas. As a result of normal faulting, these formations are connected by underground channels...
Hydrology of limestone terrane in Schoharie County, New York
Jean Milton Berdan
1948, Eos, Transactions, American Geophysical Union (29) 251-253
During the summer of 1946 the writer studied the ground‐water resources of Schoharie County, New York, as a part of the program of ground‐water investigation being carried on in cooperation between the United States Geological Survey and the New York State Water Power and Control Commission. Because the outcrop belt...
Report of Research Committee on Runoff, 1946–1947
R. W. Davenport
1948, Eos, Transactions, American Geophysical Union (29) 263-265
The membership of the Committee has remained unchanged during the year. There has been some discussion of committee activities between individual members and in small groups. The further discussion of runoff terminology has resulted in no new developments of special note.The following statements have been received from members of the...
Runoff from rain and snow
A. M. Piper
1948, Eos, Transactions, American Geophysical Union (29) 511-524
The basic principles of the idealized hydrologic cycle are reviewed with emphasis on storage and movement of water in the soil. A distinction is made between ground‐water runoff and overland runoff in terms of storage and lag, expressed as accumulated deviations from uniform flow over a period of several years....
