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

36988 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 1429, results 35701 - 35725

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Geology of the Plumtree area, Spruce Pine district, North Carolina
Donald Albert Brobst
1953, Open-File Report 53-26
This report describes the results of study and geologic mapping (1:12,000) in the 70-square-mile Plumtree area in the northeastern part of the Spruce Pine pegmatite district, on the Blue Ridge upland in western North Carolina. The district has been the chief domestic source of feldspar and sheet mica. The mining...
Pre-Cambrian geology of the Norway Lake area, Dickinson County, Michigan
Lorin Delbert Clark
1953, Open-File Report 53-37
The Norway Lake area straddles the south margin of the Sagola basin, an embayment of Ruronian sedimentary rocks into the west side of a complex of crystalline and sedimentary rocks of pre-Ruronian age. The north part of the Norway Lake area is underlain by the Randville dolomite, an unnamed succession...
Niobium (columbium) and titanium at Magnet Cove and Potash Sulphur Springs, Arkansas
Verne Charles Fryklund Jr., R. S. Harner, E.P. Kaiser
1953, Open-File Report 53-74
This work was done because niobium (columbium) has been found in several of the minerals and rocks of the Magnet Cove and Potash Sulphur Springs areas. Niobium is in demand for use in high-temperature and non-creep steels.The Magnet Cove and Potash Sulphur Springs areas are in central Arkansas between Malvern...
Correlation of the Cretaceous formations of Greenland and Alaska
Ralph Willard Imlay, John B. Reeside Jr.
1953, Open-File Report 53-135
This is Number 10d of a series of correlation charts prepared for the Committee on Stratigraphy of the National Research Council. It has been sponsored by the U.S. Geological Survey and has required about seven months' time of both authors gathering and compiling data and evaluating fossil evidence. As...
Reconnaissance geology of placer deposits containing radioactive minerals in the Bear Valley district, Valley County, Idaho
J. Hoover Mackin, Dwight Lyman Schmidt
1953, Open-File Report 53-167
A reconnaissance of the Bear Valley district was undertaken to provide a geologic interpretation of placer deposits drilled by the U.S. Bureau of Mines. The placer minerals are monazite and a group of uranium bearing rare earth columbates and tantalates here referred to loosely as radioactive blacks. The monazite is...