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.
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
U.S. Govt. Print. Off,
1957.
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| Series: | Geological Survey professional paper ;
290. |
| Subjects: |
Table of Contents:
- A study of pre-Cambrian sedimentary iron formation and associated deposits of hematite and manganese ores
- Prepared in cooperation with the Departmento Nacional da Produça︢o Mineral of Brazil under the auspices of the International Cooperation Administration of the United States Dept. of State.