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Page 6196, results 154876 - 154900

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Lead-alpha age determinations of granitic rocks from Alaska
John J. Matzko, H.W. Jaffe, C. L. Waring
1957, Trace Elements Investigations 618
Lead-alpha activity age determinations were made on zircon from seven granitic rocks of central and southeastern Alaska. The results of the age determinations indicate two periods of igneous intrusion, one about 95 million years ago, during the Cretaceous period, and another about 53 million years ago, during the early part...
Mineral deposits of Central America, with a section on manganese deposits of Panama
Ralph Jackson Roberts, Earl Montgomery Irving, F. S. Simons
1957, Bulletin 1034
The mineral deposits of Central America were studied between 1942 and 1945, in cooperation with the United States Department of State and the Foreign Economic Administration. Emphasis was originally placed on the study of strategic-mineral deposits, especially of antimony, chromite, manganese, quartz, and mica, but deposits of other minerals that...
Computation of peak discharge at culverts
Rolland William Carter
1957, Circular 376
Methods for computing peak flood flow through culverts on the basis of a field survey of highwater marks and culvert geometry are presented. These methods are derived from investigations of culvert flow as reported in the literature and on extensive laboratory studies of culvert flow. For convenience in computation, culvert...
Bedrock geology at the south-central part of the North Range, Cuyuna district, Minnesota
R. G. Schmidt, C. E. Dutton
1957, Miscellaneous Field Studies Map 99
The Cuyuna iron-ore district is in central Minnesota in Morrison, Crow Wing, and Aitkin Counties.  The length of the district is about 68 miles, extending from near Randall in Morrison County ot a point 11 miles east of the community of Hassmann in Aitkin County, and the maximum know width...
Ground-water geology of the Bruneau–Grand View area, Owyhee County, Idaho
Robert Thomas Littleton, E. G. Crosthwaite
1957, Water Supply Paper 1460-D
The Bruneau-Grand View area is part of an artesian basin in northern Owyhee County, Idaho. The area described in this report comprises about 600 square miles, largely of undeveloped public domain, much of which is open, or may be opened, for desert-entry filing. Many irrigation-entry applications to the Federal Government...
Preliminary geologic map of the Pumpkin Buttes area, Campbell and Johnson Counties, Wyoming, showing location of uranium occurrences
W. N. Sharp, A. M. White
1957, Miscellaneous Field Studies Map 98
The Pumpkin Buttes area comprises about 450 square miles in Campbell and Johnson Counties that includes several prominent buttes known as Pumpkin Buttes.  The area is near the center of the Powder River Basin, a large physiographic unit of prairie and sculptured terrain that occupies approximately 12, 000 square miles...
Geology and ground-water resources of Goshen County Wyoming with a section on chemical quality of the ground water
J. R. Rapp, F. N. Visher, R. T. Littleton, W. H. Durum
1957, Water Supply Paper 1377
Goshen County, which has an area of 2,186 square miles, lies in southeastern Wyoming. The purpose of this study was to evaluate the ground-water resources of the county by determining the character, thickness, and extent of the waterbearing materials; the source, occurrence, movement, quantity, and quality of the ground water;...