Geochemistry and Stable Isotope Composition of Hogarth and Caland Pit Lakes, Steep Rock Iron Mine, Northwestern Ontario, Canada

被引：0

作者：

Conly, Andrew G. ^{[1
]}

Lee, Peter F. ^{[2
]}

Goold, Andrea ^{[2
]}

Godwin, Amy ^{[2
]}

机构：

[1] Lakehead Univ, Dept Geol, 955 Oliver Rd, Thunder Bay, ON P7B 5E1, Canada

[2] Lakehead Univ, Dept Biol, Thunder Bay, ON P7B 5E1, Canada

来源：

MINE WATER AND THE ENVIRONMENT, PROCEEDINGS | 2008年

基金：

加拿大自然科学与工程研究理事会;

关键词：

sulfur isotopes; oxygen isotopes; deuterium isotopes; carbon isotopes; DIC-DOC; pit lakes; pyrite oxidation; evaporation;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Caland and Hogarth pit lakes were formed after the closure and subsequent flooding of the Steep Rock iron mines, Ontario, Canada. The oxygen and deuterium isotopic composition of the pit waters define a linear trend consistent with non-equilibrium evaporation. The sulfur isotope composition of dissolved sulfate is similar for the two pit lakes and indicates derivation from pyritic lenses within the ore zone. The delta O-18 for dissolved sulfate indicates different mechanisms for pyrite oxidation. For Hogarth, sulfate is produced by anaerobic oxidation of pyrite by ground water; whereas Caland sulfate is produced by aerobic oxidation of pyrite by ground water. The carbon isotopic composition of DIC from Hogarth is similar to that isotopic composition of the carbonate wall rocks; whereas, DIC in Caland pit water is isotopically depleted due to exchange with DOC generated by fish farming activities.

引用

页码：555 / +

页数：2

共 3 条

[1] Experimental Constraints for the Source of Sulfate Toxicity and Predictive Water Quality for the Hogarth and Caland Pit Lakes, Steep Rock Iron Mine, Northwestern Ontario, Canada
Conly, Andrew G.
Lee, Peter F.
Godwin, Amy
Cockerton, Sarah
MINE WATER AND THE ENVIRONMENT, PROCEEDINGS, 2008, : 551 - +
[2] Predicting toxicity of future combined pit lakes at the former Steep Rock Iron Mine near Atikokan, Ontario
Godwin, Amy L.
Lee, Peter F.
Conly, Andrew G.
Goold, Andrea R.
MINE WATER & INNOVATIVE THINKING, 2010, : 343 - 346
[3] Geochemistry and stable isotope composition of the Berkeley pit lake and surrounding mine waters, Butte, Montana
Pellicori, DA
Gammons, CH
Poulson, SR
APPLIED GEOCHEMISTRY, 2005, 20 (11) : 2116 - 2137

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