Genetic implications of halide enrichment near a Mississippi Valley-type ore deposit
Journal Article
·
· Econ. Geol.; (United States)
Analysis of host dolomite adjacent to the Buick lead-zinc-copper deposit, Viburnum Trend, southeast Missouri, by instrumental neutron activation (INAA) and X-ray fluorescence (XRF) has revealed large and distinct primary wall-rock enrichments of bromine and chlorine, respectively. The halide enrichment extends up to 250 ft from the deposit and is found in close association with trace element enrichments. The presence of the Br and Cl enrichment zone is strong additional evidence that the ore-forming solutions of the Viburnum Trend were metal-rich Na-Cl brines. The Br/Cl ratios of the dolomite samples also display an asymptotic decrease with distance from the deposit. The elevated Br/Cl ratios of the rock samples and their soluble fractions indicate that the ore-forming solutions were initially formed from the evaporation of seawater past the point of halite precipitation. This implies that the ore-forming solutions of the Buick mine and Viburnum Trend deposits evolved from bitterns which formed contemporaneously with an evaporite sequence. These bitterns subsequently underwent mixing with less saline waters prior to or during ore mineralization. 18 references, 3 figures, 2 tables.
- Research Organization:
- Brookhaven National Lab., Upton, NY
- OSTI ID:
- 5309328
- Journal Information:
- Econ. Geol.; (United States), Journal Name: Econ. Geol.; (United States) Vol. 78; ISSN ECGLA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Mineralogy of the clay-sized fraction of the Davis Shale, southeast Missouri: Alteration associated with a Mississippi Valley-type ore deposit
Regional and small scale features of cathodoluminescent zonation in hydrothermal dolomite from the Viburnum Trend, southeast Missouri, and northern Arkansas
Isotopic and chemical studies of the Viburnum Trend lead ores of southeast Missouri
Journal Article
·
· Economic Geology (plus the Bulletin of the Society of Economic Geologists); (United States)
·
OSTI ID:7296511
Regional and small scale features of cathodoluminescent zonation in hydrothermal dolomite from the Viburnum Trend, southeast Missouri, and northern Arkansas
Conference
·
Mon Dec 31 23:00:00 EST 1984
· Geol. Soc. Am., Abstr. Programs; (United States)
·
OSTI ID:6326845
Isotopic and chemical studies of the Viburnum Trend lead ores of southeast Missouri
Thesis/Dissertation
·
Mon Dec 31 23:00:00 EST 1984
·
OSTI ID:6955808
Related Subjects
58 GEOSCIENCES
580400* -- Geochemistry-- (-1989)
ALKALINE EARTH METAL COMPOUNDS
BRINES
BROMINE
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATE MINERALS
CARBONATES
CHEMISTRY
CHLORINE
COPPER
DATA
DOLOMITE
ELEMENTS
EXPERIMENTAL DATA
FEDERAL REGION VII
GEOCHEMISTRY
GEOLOGIC DEPOSITS
HALIDES
HALOGEN COMPOUNDS
HALOGENS
INFORMATION
LEAD
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
METALS
MINERALS
MISSISSIPPI RIVER BASIN
MISSOURI
NONMETALS
NORTH AMERICA
NUMERICAL DATA
ORIGIN
OXYGEN COMPOUNDS
RESERVES
RESOURCES
TRANSITION ELEMENTS
USA
WATERSHEDS
ZINC
580400* -- Geochemistry-- (-1989)
ALKALINE EARTH METAL COMPOUNDS
BRINES
BROMINE
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATE MINERALS
CARBONATES
CHEMISTRY
CHLORINE
COPPER
DATA
DOLOMITE
ELEMENTS
EXPERIMENTAL DATA
FEDERAL REGION VII
GEOCHEMISTRY
GEOLOGIC DEPOSITS
HALIDES
HALOGEN COMPOUNDS
HALOGENS
INFORMATION
LEAD
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
METALS
MINERALS
MISSISSIPPI RIVER BASIN
MISSOURI
NONMETALS
NORTH AMERICA
NUMERICAL DATA
ORIGIN
OXYGEN COMPOUNDS
RESERVES
RESOURCES
TRANSITION ELEMENTS
USA
WATERSHEDS
ZINC