Mineralogical studies of contaminated soils affected by smelter emission and dust from mining activities indicate that minerals of the spinel group are one of the common hosts of metal-bearing contaminants. Spinel group minerals typically originate from high temperature processes, but an increasing number of studies indicate that metal-bearing spinel group minerals can also form under ambient Earth surface conditions in surficial soils. In this contribution to honor Donald Sparks, we show that the spinels Zn-bearing magnetite (Zn0.5Fe2.5O4) and minium (Pb3O4) form during low temperature alteration of Pb-bearing silica glass in surficial organic rich soils in proximity to a former Cu-smelter in Timmins, Ontario, Canada. The glass most likely formed during high-temperature processes and has been either emitted by the smelter or wind-blown from waste rock piles to near-by soils. The alteration of the glass by percolating pore solutions has resulted in the formation of large micrometer-size dendritic etch features and in nanometer-size dendritic alteration halos composed of nano-size prismatic crystals of Zn-rich magnetite and spherical nanoparticles of minium. Both spinel-type phases are embedded in an amorphous silica matrix which formed during the alteration of the glass at low temperature. A review on the occurrence of spinel-group minerals in smelter-affected soils or mine tailings indicates that the formation of these minerals under ambient Earth surface conditions is quite common and often results in the sequestration of contaminants such as Cu, Ni, Zn and Sb. The pedogenic spinels often occur as euhedral crystals in nano-size mineral assemblages within alteration features such as dendritic etch patterns, mineral surface coatings and mineralized organic matter. Their well-developed crystal forms indicate that (a) they have not formed during a rapid cooling process in a smelter or refinery which typically creates spherical particulate matter, and (b) they have not been part of particulate matter added via fluvial or Aeolian processes which most commonly yield anhedral morphologies. The formation of nano-size spinel-group minerals in low temperature environmental settings may lead to the long-term storage of metal(loid)s in mineral phases and their transport over vast distances via fluvial, alluvial and Aeolian processes.
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Southwest Forestry Univ, Inst Environm Remediat & Human Hlth, Sch Ecol & Environm, Yunnan Prov Innovat Res Team Environm Pollut, Kunming 650224, Peoples R ChinaSouthwest Forestry Univ, Inst Environm Remediat & Human Hlth, Sch Ecol & Environm, Yunnan Prov Innovat Res Team Environm Pollut, Kunming 650224, Peoples R China
Ma, Jiao-Yang
Li, Wei -Yu
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Southwest Forestry Univ, Inst Environm Remediat & Human Hlth, Sch Ecol & Environm, Yunnan Prov Innovat Res Team Environm Pollut, Kunming 650224, Peoples R China
Guangdong Prov Acad Environm Sci, Guangdong Key Lab Contaminated Environm Management, Guangzhou 510000, Peoples R ChinaSouthwest Forestry Univ, Inst Environm Remediat & Human Hlth, Sch Ecol & Environm, Yunnan Prov Innovat Res Team Environm Pollut, Kunming 650224, Peoples R China
Li, Wei -Yu
Yang, Zi-Yue
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Southwest Forestry Univ, Inst Environm Remediat & Human Hlth, Sch Ecol & Environm, Yunnan Prov Innovat Res Team Environm Pollut, Kunming 650224, Peoples R ChinaSouthwest Forestry Univ, Inst Environm Remediat & Human Hlth, Sch Ecol & Environm, Yunnan Prov Innovat Res Team Environm Pollut, Kunming 650224, Peoples R China
Yang, Zi-Yue
Su, Jin-Zhou
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Southwest Forestry Univ, Inst Environm Remediat & Human Hlth, Sch Ecol & Environm, Yunnan Prov Innovat Res Team Environm Pollut, Kunming 650224, Peoples R ChinaSouthwest Forestry Univ, Inst Environm Remediat & Human Hlth, Sch Ecol & Environm, Yunnan Prov Innovat Res Team Environm Pollut, Kunming 650224, Peoples R China
Su, Jin-Zhou
Li, Li
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Yunnan Gold Min Grp, Precious Met Testing Co LTD, Kunming 650215, Peoples R ChinaSouthwest Forestry Univ, Inst Environm Remediat & Human Hlth, Sch Ecol & Environm, Yunnan Prov Innovat Res Team Environm Pollut, Kunming 650224, Peoples R China
Li, Li
Deng, Yi-Rong
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Guangdong Prov Acad Environm Sci, Guangdong Key Lab Contaminated Environm Management, Guangzhou 510000, Peoples R ChinaSouthwest Forestry Univ, Inst Environm Remediat & Human Hlth, Sch Ecol & Environm, Yunnan Prov Innovat Res Team Environm Pollut, Kunming 650224, Peoples R China
Deng, Yi-Rong
Tuo, Yun-Fei
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Southwest Forestry Univ, Inst Environm Remediat & Human Hlth, Sch Ecol & Environm, Yunnan Prov Innovat Res Team Environm Pollut, Kunming 650224, Peoples R ChinaSouthwest Forestry Univ, Inst Environm Remediat & Human Hlth, Sch Ecol & Environm, Yunnan Prov Innovat Res Team Environm Pollut, Kunming 650224, Peoples R China
Tuo, Yun-Fei
Niu, You-Ya
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Hunan Univ Med, Sch Basic Med Sci, Huaihua 418000, Peoples R ChinaSouthwest Forestry Univ, Inst Environm Remediat & Human Hlth, Sch Ecol & Environm, Yunnan Prov Innovat Res Team Environm Pollut, Kunming 650224, Peoples R China
Niu, You-Ya
Xiang, Ping
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Southwest Forestry Univ, Inst Environm Remediat & Human Hlth, Sch Ecol & Environm, Yunnan Prov Innovat Res Team Environm Pollut, Kunming 650224, Peoples R China
Southwest Forestry Univ, Inst Environm Remediat & Human Hlth, Sch Ecol & Environm, Kunming 650224, Peoples R ChinaSouthwest Forestry Univ, Inst Environm Remediat & Human Hlth, Sch Ecol & Environm, Yunnan Prov Innovat Res Team Environm Pollut, Kunming 650224, Peoples R China
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Korea Univ, Korea Biochar Res Ctr, O Jeong Ecoresilience Inst OJERI, Div Environm Sci & Ecol Engn, Seoul 02841, South KoreaKorea Univ, Korea Biochar Res Ctr, O Jeong Ecoresilience Inst OJERI, Div Environm Sci & Ecol Engn, Seoul 02841, South Korea
Igalavithana, Avanthi Deshani
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Kim, Kyoung-Ho
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Jung, Jong-Min
Heo, Hye-Sook
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Pukyong Natl Univ, Dept Microbiol, Coll Nat Sci, 45 Yongso Ro, Busan 608737, South KoreaKorea Univ, Korea Biochar Res Ctr, O Jeong Ecoresilience Inst OJERI, Div Environm Sci & Ecol Engn, Seoul 02841, South Korea
Heo, Hye-Sook
Kwon, Eilhann E.
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Sejong Univ, Environm & Energy Dept, Seoul 05006, South KoreaKorea Univ, Korea Biochar Res Ctr, O Jeong Ecoresilience Inst OJERI, Div Environm Sci & Ecol Engn, Seoul 02841, South Korea
Kwon, Eilhann E.
Tack, Filip M. G.
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Univ Ghent, Dept Green Chem & Technol, B-9000 Ghent, BelgiumKorea Univ, Korea Biochar Res Ctr, O Jeong Ecoresilience Inst OJERI, Div Environm Sci & Ecol Engn, Seoul 02841, South Korea
Tack, Filip M. G.
Tsang, Daniel C. W.
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Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong, Peoples R ChinaKorea Univ, Korea Biochar Res Ctr, O Jeong Ecoresilience Inst OJERI, Div Environm Sci & Ecol Engn, Seoul 02841, South Korea
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Waste Science & Technology, Luleå University of Technology, LuleåDepartment of Environmental Protection and Water Engineering, Vilnius Gediminas Technical University, Saulėtekio al. 11, Vilnius
Kumpiene J.
Kasiuliene A.
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Waste Science & Technology, Luleå University of Technology, LuleåDepartment of Environmental Protection and Water Engineering, Vilnius Gediminas Technical University, Saulėtekio al. 11, Vilnius
Kasiuliene A.
Vasarevičius S.
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Department of Environmental Protection and Water Engineering, Vilnius Gediminas Technical University, Saulėtekio al. 11, VilniusDepartment of Environmental Protection and Water Engineering, Vilnius Gediminas Technical University, Saulėtekio al. 11, Vilnius
机构:
Vilnius Gediminas Tech Univ, Dept Environm Protect & Water Engn, Sauletekio 11, LT-10223 Vilnius, LithuaniaVilnius Gediminas Tech Univ, Dept Environm Protect & Water Engn, Sauletekio 11, LT-10223 Vilnius, Lithuania
Danila, Vaidotas
Kumpiene, Jurate
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Lulea Univ Technol, Waste Sci & Technol, Lulea, SwedenVilnius Gediminas Tech Univ, Dept Environm Protect & Water Engn, Sauletekio 11, LT-10223 Vilnius, Lithuania
Kumpiene, Jurate
Kasiuliene, Alfreda
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Lulea Univ Technol, Waste Sci & Technol, Lulea, SwedenVilnius Gediminas Tech Univ, Dept Environm Protect & Water Engn, Sauletekio 11, LT-10223 Vilnius, Lithuania
Kasiuliene, Alfreda
Vasarevicius, Saulius
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Vilnius Gediminas Tech Univ, Dept Environm Protect & Water Engn, Sauletekio 11, LT-10223 Vilnius, LithuaniaVilnius Gediminas Tech Univ, Dept Environm Protect & Water Engn, Sauletekio 11, LT-10223 Vilnius, Lithuania