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Issues
Volume 85, Number 8
1 December 1990

ISSN 0361-0128
EISSN 1554-0774
Structural controls in the distribution of gold at How Mine, Bulawayo, Zimbabwe
Economic Geology December 01, 1990, Vol.85, 1697-1710. doi:https://doi.org/10.2113/gsecongeo.85.8.1697
Structural controls on gold-bearing quartz mineralization in a duplex thrust system, Hyde-Macraes shear zone, Otago Schist, New Zealand
Economic Geology December 01, 1990, Vol.85, 1711-1719. doi:https://doi.org/10.2113/gsecongeo.85.8.1711
The geology of the Sulitjelma ore field, Northern Norway; some new interpretations
Economic Geology December 01, 1990, Vol.85, 1720-1737. doi:https://doi.org/10.2113/gsecongeo.85.8.1720
Evolution of the Monte Negro acid-sulfate Au-Ag deposit, Pueblo Viejo, Dominican Republic; important factors in grade development
Economic Geology December 01, 1990, Vol.85, 1738-1758. doi:https://doi.org/10.2113/gsecongeo.85.8.1738
Zoned and recurrent deposition of Na-Mg-Fe-Si exhalites and Cu-Fe sulfides along synsedimentary faults (Bleida, Morocco)
Economic Geology December 01, 1990, Vol.85, 1759-1769. doi:https://doi.org/10.2113/gsecongeo.85.8.1759
Isotope systematics of the Kiruna magnetite ores, Sweden; Part 1, Age of the ore
Economic Geology December 01, 1990, Vol.85, 1770-1776. doi:https://doi.org/10.2113/gsecongeo.85.8.1770
Platinum-group element behavior in the lower part of the upper zone, eastern Bushveld Complex; implications for the formation of the main magnetite layer
Economic Geology December 01, 1990, Vol.85, 1777-1789. doi:https://doi.org/10.2113/gsecongeo.85.8.1777
Distribution and geochemical characteristics of metal enrichment in the New Albany Shale (Devonian-Mississippian), Indiana
Economic Geology December 01, 1990, Vol.85, 1790-1807. doi:https://doi.org/10.2113/gsecongeo.85.8.1790
40 Ar/ 39 Ar and U-Pb geochronology of the Goonumbla porphyry Cu-Au deposits, New South Wales, Australia
Economic Geology December 01, 1990, Vol.85, 1808-1824. doi:https://doi.org/10.2113/gsecongeo.85.8.1808
Alteration and fluid inclusion study of the Groundhog vein system, Central mining district, New Mexico
Economic Geology December 01, 1990, Vol.85, 1825-1839. doi:https://doi.org/10.2113/gsecongeo.85.8.1825
Evolution of aqueous-carbonic fluids during contact metamorphism, wall-rock alteration, and molybdenite deposition at Trout Lake, British Columbia
Economic Geology December 01, 1990, Vol.85, 1840-1856. doi:https://doi.org/10.2113/gsecongeo.85.8.1840
Lead isotope provinces of the Central Andes inferred from ores and crustal rocks
Economic Geology December 01, 1990, Vol.85, 1857-1880. doi:https://doi.org/10.2113/gsecongeo.85.8.1857
A fluid inclusion study of quartzite-hosted lode gold mineralization at Athabasca Pass, Central Rocky Mountains, Canada
Economic Geology December 01, 1990, Vol.85, 1881-1893. doi:https://doi.org/10.2113/gsecongeo.85.8.1881
A comparison of the old lead belt and the new lead belt in Southeast Missouri
Economic Geology December 01, 1990, Vol.85, 1894-1895. doi:https://doi.org/10.2113/gsecongeo.85.8.1894
Variation of trace elements and rare earth elements in fluorite; a possible tool for exploration
Economic Geology December 01, 1990, Vol.85, 1896-1907. doi:https://doi.org/10.2113/gsecongeo.85.8.1896
The Ritchie Creek main zone; a lower Proterozoic copper-gold volcanogenic massive sulfide deposit in northern Wisconsin
Economic Geology December 01, 1990, Vol.85, 1908-1916. doi:https://doi.org/10.2113/gsecongeo.85.8.1908
Radical sulfur isotope zonation of pyrite accompanying boiling and epithermal gold deposition; a SHRIMP study of the Valles Caldera, New Mexico
Economic Geology December 01, 1990, Vol.85, 1917-1925. doi:https://doi.org/10.2113/gsecongeo.85.8.1917
Solubility and transport of plantinum-group elements and Au in saline hydrothermal fluids; constraints from geothermal brine data
Economic Geology December 01, 1990, Vol.85, 1926-1934. doi:https://doi.org/10.2113/gsecongeo.85.8.1926
Se/S ratios of the Virginia Formation and Cu-Ni sulfide mineralization in the Babbitt area, Duluth Complex, Minnesota
Economic Geology December 01, 1990, Vol.85, 1935-1940. doi:https://doi.org/10.2113/gsecongeo.85.8.1935
Franklinite-magnetite-pyrophanite intergrowths in the Sterling Hill zinc deposit, New Jersey
Economic Geology December 01, 1990, Vol.85, 1941-1946. doi:https://doi.org/10.2113/gsecongeo.85.8.1941
Mount Morgan gold-copper deposit, Queensland, Australia; evidence for an intrusion-related replacement origin; discussion
Economic Geology December 01, 1990, Vol.85, 1947-1949. doi:https://doi.org/10.2113/gsecongeo.85.8.1947
Provenance ages for the Witwatersrand Supergroup and the Ventersdorp contact reef; constraints from ion microprobe U-Pb ages of detrital zircons; discussion
Economic Geology December 01, 1990, Vol.85, 1949-1950. doi:https://doi.org/10.2113/gsecongeo.85.8.1949
Provenance ages for the Witwatersrand Supergroup and the Ventersdorp contact reef; constraints from ion microprobe U-Pb ages of detrital zircons; reply
Erika S. Barton; William Compston; Ian S. Williams; John W. Bristow; Dieter K. Hallbauer; Craig B. Smith
Economic Geology December 01, 1990, Vol.85, 1951-1952. doi:https://doi.org/10.2113/gsecongeo.85.8.1951
Hydrothermal potassium feldspar at the Haile gold mine, South Carolina; discussion
Economic Geology December 01, 1990, Vol.85, 1952-1954. doi:https://doi.org/10.2113/gsecongeo.85.8.1952
Hydrothermal potassium feldspar at the Haile gold mine, South Carolina; reply
Economic Geology December 01, 1990, Vol.85, 1954-1955. doi:https://doi.org/10.2113/gsecongeo.85.8.1954