Geology and mineral resources of the Congonhas district, Minas Gerais, Brazil. : A study of pre-Cambrian sedimentary iron formation and associated deposits of hematite and manganese ores.

Bibliographic Details
Main Author: Guild, Philip White, 1915-
Format: Government Document Book
Language:English
Published: Washington : U.S. Govt. Print. Off, 1957.
Series:Geological Survey professional paper ; 290.
Subjects:

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