Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

165549 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 6032, results 150776 - 150800

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Investigations of the principal fluorspar districts of Mexico
Ralph Erskine Van Alstine, Samuel Estrada, Ernesto de la Garza
1963, Open-File Report 63-124
As a result of the increasing need for fluorspar, especially in North America, the Mexican fluorspar industry expanded greatly is the 8-year period, 1952-1960. Since 1956, Mexico has been the world's largest producer and exporter of this commodity. From 1956 through 1959 Maltice imported about 90 percent of the fluorspar...
Geology of the Terra Bella-Lost Hills Area, San Joaquin Valley, California
G.S. Hilton, R.L. Klausing, Fred Kunkel
1963, Open-File Report 63-47
The Terra Bella-Lost Hills area in the southeastern part of the San Joaquin Valley includes about 1,700 square miles of Kings, Tulare and Kern Counties. This part of the San Joaquin Valley has mild winters, long hot summers, and little precipitating, almost all of which occurs during the fall and...
Tests of crest-stage gage intakes
Jack R. Carter, Charles R. Gamble
1963, Open-File Report 63-147
Various types of c rest-stage gages have been used by the Geological Survey. Most installations consist of a vertically mounted metal pipe, a wooden rod, an intake device, and a small amount of granulated cork. These gages are placed where elevations of flood crests are desired. Water rising and then...
Principal lakes of the United States
Conrad D. Bue
1963, Circular 476
The United States has about 250 fresh-water lakes that are known to have surface areas of 10 square miles or more. Nearly 100 of these are in Alaska, and 100 in Minnesota, Wisconsin, Michigan, New York,, and Maine. Thirty-four fresh-water lakes, exclusive of the Great Lakes, are known to have maximum...
Surficial geology and soils of the Elmira-Williamsport region, New York and Pennsylvania, with a section on forest regions and great soil groups
Charles Storrow Denny, Walter Henry Lyford, J. C. Goodlett
1963, Professional Paper 379
The Elmira-Williamsport region, lying south of the Finger Lakes in central New York and northern Pennsylvania, is part of the Appalachian Plateaus physiographic province. A small segment of the Valley and Ridge province is included near the south border. In 1953 and 1954, the authors, a geologist and a soil...
Preliminary interpretation of an aeromagnetic survey in north-central Iowa
John Richard Henderson, Walter S. White, Isidore Zietz
1963, Open-File Report 63-45
Publication of Lyons' gravity map of the United States in 1950 focused attention on a spectacular geophysical feature now generally referred to as the "midcontinent gravity high." This feature, the largest gravity maximum in North America, was discovered and later detailed by geophysicists at the University of Wisconsin (Woollard, 1943,...
Preparation of water samples for carbon-14 dating
H.R. Feltz, Bruce B. Hanshaw
1963, Circular 480
For most natural water, a large sample is required to provide the 3 grams of carbon needed for a carbon-14 determination. A field procedure for isolating total dissolved-carbonate species is described. Carbon dioxide gas is evolved by adding sulfuric acid to the water sample; the gas is then collected in...