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Page 422, results 10526 - 10550

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Not all publications have extents, not all extents are completely accurate
Iron deposits of North America, Cuba, and Puerto Rico
Carl E. Dutton
1954, Open-File Report 54-73
The accompanying report on the iron deposits of the North American continent also includes information concerning the deposits of the West Indies. The geogrphic order of desription is as follows: Alaska, Canada, United States, Mexico, Cuba, and Puerto Rico.A map of each country shows the generalized geologic pattern of the...
Stripping-coal deposits on lower Lignite Creek, Nenana coal field, Alaska
Clyde Wahrhaftig, Joseph H. Birman
1954, Circular 310
Stripping-coal reserves in an area of about 9.4 square miles extending from the Nenana River about 6 miles up the valley of Lignite Creek are estimated to amount to about 95, 000, 000 tons. The stripping-coal reserves are located in the lower and middle members of the Tertiary coal-bearing formation....
Reconnaissance geology of the Malaspina district, Alaska
George Plafker, Don John Miller
1954, Open-File Report 54-241
This report presents in preliminary form the results of a reconnaissance geologic investigation of the Malaspina district, undertaken by the United States Geological Survey as part of a project to investigate the petroleum possibilities of the Gulf of Alaska Tertiary province. (See index map.) ...
Magnetite deposits at Tuxedni Bay, Alaska
Arthur Grantz
1954, Open-File Report 54-103
The magnetite deposits on an island in Tuxedni Bay occur in contact-metamorphosed volcanic and sedimentary rocks near their contact with a quartz diorite batholith which underlies large areas of the adjacent Aleutian Range. The deposits are pyrometasomatic in origin and are localized along northeast-trending fractures. The eastern deposit is a...
Subsurface exploration in the Little Susitna district, Matanuska coal field, Alaska
Farrell F. Barnes, Daniel Sokol
1954, Open-File Report 55-7
Preliminary geologic mapping of the Little Susitna district in 1952 showed that an area of at least 140 square miles is underlain by coal-bearing rocks of Tertiary age, and indicated that coal beds of minable quality and thickness might be present at several localities. Detailed exploration with a bulldozer and...
Reconnaissance for radioactive deposits in east-central Alaska, 1949
Helmuth Wedow, M.G. White
1954, Circular 335
In the summer of 1949, several mines and prospects in the Fairbanks and Livengood quadrangles, east-central Alaska, were examined for the possible presence of radioactive materials. Also tested were metamorphic and sedimentary rocks of pre-Cambrian and Paleozoic age crossed by the Elliott Highway, which extends from Fox, near Fairbanks, northwestward...