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Title: Complex, multiple ore fluids in the world class southeast Missouri Pb-Zn-Cu MVT deposits: Sulfur isotope evidence

Abstract

More than 625 sulfur isotope data from all of the mines in the Viburnum Trend Pb-Zn-Cu MVT district of southeast Missouri have identified large temporal variations of sulfur isotope composition within the complex mineral paragenesis of each mine as well as large spatial variations in sulfur isotope composition within and among mines. The general trend of [delta][sup 34]S values with increasing paragenetic time is: Early pyrite, [minus]9 to [minus]1[per thousand]; Early bornite-chalcopyrite, [minus]9 to +16[per thousand]; Massive chalcopyrite, [minus]14 to +9[per thousand]; Main sphalerite, +12 to +26[per thousand]; Cuboctahedral galena, +5 to +22[per thousand]; Main marcasite, [minus]19 to +9[per thousand]; Cubic galena, [minus]2 to +13[per thousand] Late sphalerite, +6 to +13[per thousand]; Late marcasite, +10 to +19[per thousand]; Late chalcopyrite, +2 to +33[per thousand]. Spatial correlation of [delta][sup 34]S values of the Main stages of sulfide mineralization in the West Fork mine may indicate that the cuboctahedral galena in this mine was precipitated from a Pb-rich, S-poor fluid that incorporated sulfur from reaction with earlier marcasite. In the rest of the district, ore precipitation may have occurred by mixing of Pb-rich, S-poor fluids with Pb-poor, S-rich fluids. Complex mineral parageneses and sulfur isotope systematics within the southeast Missouri Pb-Zn-Cu MVTmore » deposits are compatible with multiple, metal-specific fluids and multiple precipitation mechanisms, as well as multiple sulfur sources.« less

Authors:
;  [1]; ;  [2]
  1. Univ. of Missouri, Columbia, MO (United States)
  2. Univ. of Missouri, Rolla, MO (United States). Dept. of Geology Geophysics
Publication Date:
OSTI Identifier:
5018655
Report Number(s):
CONF-9303210-
Journal ID: ISSN 0016-7592; CODEN: GAAPBC
Resource Type:
Conference
Journal Name:
Geological Society of America, Abstracts with Programs; (United States)
Additional Journal Information:
Journal Volume: 25:3; Conference: 27. annual Geological Society of America (GSA) North-Central Section meeting, Rolla, MO (United States), 29-30 Mar 1993; Journal ID: ISSN 0016-7592
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; GEOLOGIC DEPOSITS; GEOCHEMISTRY; MISSOURI; SULFIDE MINERALS; COPPER ORES; ISOTOPE RATIO; LEAD ORES; SULFUR ISOTOPES; ZINC ORES; CHEMISTRY; DEVELOPED COUNTRIES; ISOTOPES; MINERALS; NORTH AMERICA; ORES; USA; 580000* - Geosciences

Citation Formats

Burstein, I B, Shelton, K L, Gregg, J M, and Hagni, R D. Complex, multiple ore fluids in the world class southeast Missouri Pb-Zn-Cu MVT deposits: Sulfur isotope evidence. United States: N. p., 1993. Web.
Burstein, I B, Shelton, K L, Gregg, J M, & Hagni, R D. Complex, multiple ore fluids in the world class southeast Missouri Pb-Zn-Cu MVT deposits: Sulfur isotope evidence. United States.
Burstein, I B, Shelton, K L, Gregg, J M, and Hagni, R D. 1993. "Complex, multiple ore fluids in the world class southeast Missouri Pb-Zn-Cu MVT deposits: Sulfur isotope evidence". United States.
@article{osti_5018655,
title = {Complex, multiple ore fluids in the world class southeast Missouri Pb-Zn-Cu MVT deposits: Sulfur isotope evidence},
author = {Burstein, I B and Shelton, K L and Gregg, J M and Hagni, R D},
abstractNote = {More than 625 sulfur isotope data from all of the mines in the Viburnum Trend Pb-Zn-Cu MVT district of southeast Missouri have identified large temporal variations of sulfur isotope composition within the complex mineral paragenesis of each mine as well as large spatial variations in sulfur isotope composition within and among mines. The general trend of [delta][sup 34]S values with increasing paragenetic time is: Early pyrite, [minus]9 to [minus]1[per thousand]; Early bornite-chalcopyrite, [minus]9 to +16[per thousand]; Massive chalcopyrite, [minus]14 to +9[per thousand]; Main sphalerite, +12 to +26[per thousand]; Cuboctahedral galena, +5 to +22[per thousand]; Main marcasite, [minus]19 to +9[per thousand]; Cubic galena, [minus]2 to +13[per thousand] Late sphalerite, +6 to +13[per thousand]; Late marcasite, +10 to +19[per thousand]; Late chalcopyrite, +2 to +33[per thousand]. Spatial correlation of [delta][sup 34]S values of the Main stages of sulfide mineralization in the West Fork mine may indicate that the cuboctahedral galena in this mine was precipitated from a Pb-rich, S-poor fluid that incorporated sulfur from reaction with earlier marcasite. In the rest of the district, ore precipitation may have occurred by mixing of Pb-rich, S-poor fluids with Pb-poor, S-rich fluids. Complex mineral parageneses and sulfur isotope systematics within the southeast Missouri Pb-Zn-Cu MVT deposits are compatible with multiple, metal-specific fluids and multiple precipitation mechanisms, as well as multiple sulfur sources.},
doi = {},
url = {https://www.osti.gov/biblio/5018655}, journal = {Geological Society of America, Abstracts with Programs; (United States)},
issn = {0016-7592},
number = ,
volume = 25:3,
place = {United States},
year = {Mon Mar 01 00:00:00 EST 1993},
month = {Mon Mar 01 00:00:00 EST 1993}
}

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