Magnetic survey and geology of the eastern and southeastern parts of the Iron River district, Iron County, Michigan
Harold Lloyd James, K. L. Wier
1948, Circular 26
No abstract available....
Texas floods of 1940
Seth D. Breeding
1948, Water Supply Paper 1046
Floods occurred in Texas during, June, July, and November 1940 that exceeded known stages on many small streams and at a few places on the larger streams. Stages at several stream-gaging stations exceeded the maximum known at those places since the collection of daily records began. A storm, haying its...
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...
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...
Heavy metals in altered rock over blind ore bodies, East Tintic District, Utah
Thomas Seward Lovering, V.P. Sokoloff, Hal T. Morris
1948, Economic Geology (43) 384-399
Standard chemical tests and spectroscopic analyses of altered Tertiary lavas that occur above blind ore bodies in the East Tintic district, Utah, have failed to show any evidence of the mineralization in the underlying dolomites. A new technique involving dithizone was used in the field to test ammonium acetate extracts...
Batholith and associated rocks of Corona, Elsinore, and San Luis Rey quadrangles southern California
Esper S. Larsen Jr.
1948, GSA Memoirs
The batholith of Southern and Lower California is exposed continuously from near Riverside, California, southward for a distance of about 350 miles. In central Lower California it is covered in part by younger rocks, but discontinuous bodies extend to the southern end of Lower California, and hence the batholith is...
Preliminary report on the geology along the route of a proposed tunnel to develop hydroelectric power from Eklutna Lake, Alaska
F.F. Barnes
1948, Open-File Report 48-11
A preliminary investigation of the geology of the ridge north- west of the lower end of Eklutna Lake was made in the period June 11-18, 1947, by the writer, assisted by L. A. Hale. The purpose of this study was to obtain geological information bearing on the feasibility of constructing a tunnel through this...
Geologic features of dam sites in the Nehalem, Rogue, and Willamette River basins, Oregon, 1935-37
A. M. Piper
1947, Open-File Report 47-12
The present report comprises brief descriptions of geologic features at 19 potential dam sites in the Nehalem, Rogue, and Willamette River basins in western Oregon. The topography of these site and of the corresponding reservoir site was mapped in 1934-36 under an allocation of funds, by the Public Works...
Cobalt-copper deposits of the Blackbird district, Lemhi County, Idaho
J. S. Vhay
1947, Open-File Report 48-1
The Blackbird district is in east-central Idaho, about 20 miles west-southwest of Salmon. The area is one of deeply weathered, flat-topped upland surfaces cut by several steep-walled valleys, which are tributary to the canyon of Panther Creek. Most of the area has a heavy vegetative cover and outcrops are relatively...
Mining districts in the Carson Sink region, Nevada
F. Schrader
1947, Open-File Report 47-17
The region lies in an area of primarily sedimentary rocks which are principally Mesozoic and are tilted, folded, and faulted and cut by granular intrusives, and flooded by Tertiary lavas as shown on Figure 4. The Mesozoic sediments were strongly folded and invaded by granular intrusives at or about the...
Geologic features of the Connecticut Valley, Massachusetts as related to recent floods
Richard Henry Jahns
1947, Water Supply Paper 996
This report gives the results of a geologic study of certain features that bear upon the recent flood behavior of rivers flowing in the Massachusetts part of the Connecticut Valley. It is in part an outline of the physiographic history of the Connecticut River, a 'history that is treated in...
Minor floods of 1938 in the North Atlantic States
Water Resources Division, U.S. Geological Survey
1947, Water Supply Paper 966
Five noteworthy floods occurred during 1938 in the North Atlantic States. The first flood was in January, the others were in June, July, August, and September. The floods of January, June, and August were relatively local events in Connecticut, New Jersey, and New York, respectively. The floods of July and...
Surface water supply of the United States, 1945, Part II, South Atlantic slope and eastern Gulf of Mexico basins
Water Resources Division, U.S. Geological Survey
1947, Water Supply Paper 1032
Preliminary report on stratigraphy and structure of the Wolf Creek anticline, Alaska
Karl Stefansson, R. F. Thurrell Jr., J. H. Zumberge
1947, Geological Investigations, Naval Petroleum Reserve No. 4, Alaska 14
In 1946 U. S. Geological Survey Party 2 was assigned the task of carrying out detailed structural and stratigraphic investigations in the area of Maybe Creek*. Field studies indicated the presence of a large anticlinal structure whose axis lies just south of Wolf Creek. Later structural data compiled from aerial...
Preliminary report on stratigraphy and structure of the area of Kigalik and Awuna Rivers, Alaska
C. L. Whittington, M. L. Troyer
1947, Geological Investigations, Naval Petroleum Reserve No. 4, Alaska 11
During the summer of. 1947, U. S. Geological Survey Party No. 2 made a reconnaissance survey of the area between Awuna River and the divide north of the Kigalik River. The westernmost observations were made along the Awuna anticline to longitude about 157°30' W. and along the Kigalik anticline to...
Stratigraphy and structure of the area of Maybe Creek
Richard G. Ray, William A. Fischer
1947, Geological Investigations, Naval Petroleum Reserve No. 4, Alaska 4
During the summer of 1946 the United States Geological Survey continued its program of stratigraphic and structural investigations in Naval Petroleum Reserve No. 4, northern Alaska. This report summarizes the results of work in the area of Maybe Creek (see inset, fig. 1). The area studied is southwest of Umiat...
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...
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,...
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...
Geology and ground-water resources of Puerto Rico
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...
Geology and ground-water resources of the island of Niihau, Hawaii
Harold T. Stearns, Gordon A. Macdonald
1947, Bulletin 12
Niihau lies 171/2 miles southwest of Kauai. Its area is 72 square miles, and its highest point has an altitude of 1,281 feet. The population is about 180, chiefly Hawaiians. The annual rainfall at Kiekie, the ranch headquarters, generally ranges between 18 and 26 inches. The chief industries are the...
Geology and ground-water resources of the island of Molokai, Hawaii
Harold T. Stearns, Gordon A. Macdonald
1947, Bulletin 11
The island of Molokai is the fifth largest of the Hawaiian Islands, with an area of 250 square miles. It lies 25 miles southeast of Oahu, and 8.5 miles northwest of Maui. It consists of two principal parts, each a major volcanic mountain. East Molokai rises to 4,970 feet altitude....