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1 October 1974
Article Contents
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Index Terms/Descriptors
- barite
- carbon
- economic geology
- fluorspar
- fractionation
- hydrogen
- hydrothermal alteration
- hydrothermal processes
- interpretation
- isotopes
- lead ores
- metal ores
- metasomatism
- mineral deposits, genesis
- mineral resources
- mineralization
- Mississippi Valley
- nonmetals
- ore deposits
- ore-forming fluids
- oxygen
- patterns
- polymetallic ores
- processes
- sources
- sulfates
- sulfur
- United States
- zinc ores
- East-central
