Cadmium sources, mobility, and natural attenuation in contrasting environments (carbonate-rich and carbonate-poor) in the Capillitas polymetallic mineral deposit, NW Argentina
Cadmium is one of the most toxic metals commonly released due to mining activities. However, its dynamic in contrasting mining environments has not been exhaustively studied. Through mineralogical and hydrochemical analyses, this study identifies Cd mineral sources and its mobility in surficial wate...
Ausführliche Beschreibung
Autor*in: |
Yaciuk, Pablo A. [verfasserIn] Colombo, Fernando [verfasserIn] Lecomte, Karina L. [verfasserIn] De Micco, Georgina [verfasserIn] Bohé, Ana E. [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2021 |
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Schlagwörter: |
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Übergeordnetes Werk: |
Enthalten in: Applied geochemistry - Amsterdam [u.a.] : Elsevier Science, 1986, 136 |
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Übergeordnetes Werk: |
volume:136 |
DOI / URN: |
10.1016/j.apgeochem.2021.105152 |
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Katalog-ID: |
ELV007198124 |
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520 | |a Cadmium is one of the most toxic metals commonly released due to mining activities. However, its dynamic in contrasting mining environments has not been exhaustively studied. Through mineralogical and hydrochemical analyses, this study identifies Cd mineral sources and its mobility in surficial waters from two different mining environments (i.e. carbonate-rich and carbonate-poor mineral assemblages) within the polymetallic Capillitas deposit, in NW Argentina. Furthermore, a freshwater tributary stream without mining operations is analyzed as natural background. Results show that sphalerite weathering is the main process releasing Cd into surficial waters in both locations. Sphalerite is Cd-rich in the carbonate-poor rocks of the high-to intermediate-sulfidation environment. At this site, the mineral assemblage is poorly neutralizing and the metal dissolved concentrations increase downstream. The carbonate-rich rocks release Cd up to 1.25 mg L−1, which is higher than similar environments around the world. However, they rapidly decrease downstream to 0.0005 mg L−1 in < 3 km. The main processes that reduce Cd concentrations in the Capillitas hydrological basin are dilution with fresh waters, adsorption, precipitation, and co-precipitation with authigenic minerals such as efflorescent salts and Mn oxy-hydroxides. | ||
650 | 4 | |a Toxic metal | |
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700 | 1 | |a Colombo, Fernando |e verfasserin |4 aut | |
700 | 1 | |a Lecomte, Karina L. |e verfasserin |4 aut | |
700 | 1 | |a De Micco, Georgina |e verfasserin |4 aut | |
700 | 1 | |a Bohé, Ana E. |e verfasserin |4 aut | |
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10.1016/j.apgeochem.2021.105152 doi (DE-627)ELV007198124 (ELSEVIER)S0883-2927(21)00283-3 DE-627 ger DE-627 rda eng 550 DE-600 38.32 bkl Yaciuk, Pablo A. verfasserin (orcid)0000-0003-1743-1993 aut Cadmium sources, mobility, and natural attenuation in contrasting environments (carbonate-rich and carbonate-poor) in the Capillitas polymetallic mineral deposit, NW Argentina 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Cadmium is one of the most toxic metals commonly released due to mining activities. However, its dynamic in contrasting mining environments has not been exhaustively studied. Through mineralogical and hydrochemical analyses, this study identifies Cd mineral sources and its mobility in surficial waters from two different mining environments (i.e. carbonate-rich and carbonate-poor mineral assemblages) within the polymetallic Capillitas deposit, in NW Argentina. Furthermore, a freshwater tributary stream without mining operations is analyzed as natural background. Results show that sphalerite weathering is the main process releasing Cd into surficial waters in both locations. Sphalerite is Cd-rich in the carbonate-poor rocks of the high-to intermediate-sulfidation environment. At this site, the mineral assemblage is poorly neutralizing and the metal dissolved concentrations increase downstream. The carbonate-rich rocks release Cd up to 1.25 mg L−1, which is higher than similar environments around the world. However, they rapidly decrease downstream to 0.0005 mg L−1 in < 3 km. The main processes that reduce Cd concentrations in the Capillitas hydrological basin are dilution with fresh waters, adsorption, precipitation, and co-precipitation with authigenic minerals such as efflorescent salts and Mn oxy-hydroxides. Toxic metal AMD Sulfide Sphalerite Rhodochrosite Colombo, Fernando verfasserin aut Lecomte, Karina L. verfasserin aut De Micco, Georgina verfasserin aut Bohé, Ana E. verfasserin aut Enthalten in Applied geochemistry Amsterdam [u.a.] : Elsevier Science, 1986 136 Online-Ressource (DE-627)306648091 (DE-600)1499242-5 (DE-576)08198426X nnns volume:136 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.32 Geochemie AR 136 |
spelling |
10.1016/j.apgeochem.2021.105152 doi (DE-627)ELV007198124 (ELSEVIER)S0883-2927(21)00283-3 DE-627 ger DE-627 rda eng 550 DE-600 38.32 bkl Yaciuk, Pablo A. verfasserin (orcid)0000-0003-1743-1993 aut Cadmium sources, mobility, and natural attenuation in contrasting environments (carbonate-rich and carbonate-poor) in the Capillitas polymetallic mineral deposit, NW Argentina 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Cadmium is one of the most toxic metals commonly released due to mining activities. However, its dynamic in contrasting mining environments has not been exhaustively studied. Through mineralogical and hydrochemical analyses, this study identifies Cd mineral sources and its mobility in surficial waters from two different mining environments (i.e. carbonate-rich and carbonate-poor mineral assemblages) within the polymetallic Capillitas deposit, in NW Argentina. Furthermore, a freshwater tributary stream without mining operations is analyzed as natural background. Results show that sphalerite weathering is the main process releasing Cd into surficial waters in both locations. Sphalerite is Cd-rich in the carbonate-poor rocks of the high-to intermediate-sulfidation environment. At this site, the mineral assemblage is poorly neutralizing and the metal dissolved concentrations increase downstream. The carbonate-rich rocks release Cd up to 1.25 mg L−1, which is higher than similar environments around the world. However, they rapidly decrease downstream to 0.0005 mg L−1 in < 3 km. The main processes that reduce Cd concentrations in the Capillitas hydrological basin are dilution with fresh waters, adsorption, precipitation, and co-precipitation with authigenic minerals such as efflorescent salts and Mn oxy-hydroxides. Toxic metal AMD Sulfide Sphalerite Rhodochrosite Colombo, Fernando verfasserin aut Lecomte, Karina L. verfasserin aut De Micco, Georgina verfasserin aut Bohé, Ana E. verfasserin aut Enthalten in Applied geochemistry Amsterdam [u.a.] : Elsevier Science, 1986 136 Online-Ressource (DE-627)306648091 (DE-600)1499242-5 (DE-576)08198426X nnns volume:136 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.32 Geochemie AR 136 |
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10.1016/j.apgeochem.2021.105152 doi (DE-627)ELV007198124 (ELSEVIER)S0883-2927(21)00283-3 DE-627 ger DE-627 rda eng 550 DE-600 38.32 bkl Yaciuk, Pablo A. verfasserin (orcid)0000-0003-1743-1993 aut Cadmium sources, mobility, and natural attenuation in contrasting environments (carbonate-rich and carbonate-poor) in the Capillitas polymetallic mineral deposit, NW Argentina 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Cadmium is one of the most toxic metals commonly released due to mining activities. However, its dynamic in contrasting mining environments has not been exhaustively studied. Through mineralogical and hydrochemical analyses, this study identifies Cd mineral sources and its mobility in surficial waters from two different mining environments (i.e. carbonate-rich and carbonate-poor mineral assemblages) within the polymetallic Capillitas deposit, in NW Argentina. Furthermore, a freshwater tributary stream without mining operations is analyzed as natural background. Results show that sphalerite weathering is the main process releasing Cd into surficial waters in both locations. Sphalerite is Cd-rich in the carbonate-poor rocks of the high-to intermediate-sulfidation environment. At this site, the mineral assemblage is poorly neutralizing and the metal dissolved concentrations increase downstream. The carbonate-rich rocks release Cd up to 1.25 mg L−1, which is higher than similar environments around the world. However, they rapidly decrease downstream to 0.0005 mg L−1 in < 3 km. The main processes that reduce Cd concentrations in the Capillitas hydrological basin are dilution with fresh waters, adsorption, precipitation, and co-precipitation with authigenic minerals such as efflorescent salts and Mn oxy-hydroxides. Toxic metal AMD Sulfide Sphalerite Rhodochrosite Colombo, Fernando verfasserin aut Lecomte, Karina L. verfasserin aut De Micco, Georgina verfasserin aut Bohé, Ana E. verfasserin aut Enthalten in Applied geochemistry Amsterdam [u.a.] : Elsevier Science, 1986 136 Online-Ressource (DE-627)306648091 (DE-600)1499242-5 (DE-576)08198426X nnns volume:136 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.32 Geochemie AR 136 |
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10.1016/j.apgeochem.2021.105152 doi (DE-627)ELV007198124 (ELSEVIER)S0883-2927(21)00283-3 DE-627 ger DE-627 rda eng 550 DE-600 38.32 bkl Yaciuk, Pablo A. verfasserin (orcid)0000-0003-1743-1993 aut Cadmium sources, mobility, and natural attenuation in contrasting environments (carbonate-rich and carbonate-poor) in the Capillitas polymetallic mineral deposit, NW Argentina 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Cadmium is one of the most toxic metals commonly released due to mining activities. However, its dynamic in contrasting mining environments has not been exhaustively studied. Through mineralogical and hydrochemical analyses, this study identifies Cd mineral sources and its mobility in surficial waters from two different mining environments (i.e. carbonate-rich and carbonate-poor mineral assemblages) within the polymetallic Capillitas deposit, in NW Argentina. Furthermore, a freshwater tributary stream without mining operations is analyzed as natural background. Results show that sphalerite weathering is the main process releasing Cd into surficial waters in both locations. Sphalerite is Cd-rich in the carbonate-poor rocks of the high-to intermediate-sulfidation environment. At this site, the mineral assemblage is poorly neutralizing and the metal dissolved concentrations increase downstream. The carbonate-rich rocks release Cd up to 1.25 mg L−1, which is higher than similar environments around the world. However, they rapidly decrease downstream to 0.0005 mg L−1 in < 3 km. The main processes that reduce Cd concentrations in the Capillitas hydrological basin are dilution with fresh waters, adsorption, precipitation, and co-precipitation with authigenic minerals such as efflorescent salts and Mn oxy-hydroxides. Toxic metal AMD Sulfide Sphalerite Rhodochrosite Colombo, Fernando verfasserin aut Lecomte, Karina L. verfasserin aut De Micco, Georgina verfasserin aut Bohé, Ana E. verfasserin aut Enthalten in Applied geochemistry Amsterdam [u.a.] : Elsevier Science, 1986 136 Online-Ressource (DE-627)306648091 (DE-600)1499242-5 (DE-576)08198426X nnns volume:136 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.32 Geochemie AR 136 |
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10.1016/j.apgeochem.2021.105152 doi (DE-627)ELV007198124 (ELSEVIER)S0883-2927(21)00283-3 DE-627 ger DE-627 rda eng 550 DE-600 38.32 bkl Yaciuk, Pablo A. verfasserin (orcid)0000-0003-1743-1993 aut Cadmium sources, mobility, and natural attenuation in contrasting environments (carbonate-rich and carbonate-poor) in the Capillitas polymetallic mineral deposit, NW Argentina 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Cadmium is one of the most toxic metals commonly released due to mining activities. However, its dynamic in contrasting mining environments has not been exhaustively studied. Through mineralogical and hydrochemical analyses, this study identifies Cd mineral sources and its mobility in surficial waters from two different mining environments (i.e. carbonate-rich and carbonate-poor mineral assemblages) within the polymetallic Capillitas deposit, in NW Argentina. Furthermore, a freshwater tributary stream without mining operations is analyzed as natural background. Results show that sphalerite weathering is the main process releasing Cd into surficial waters in both locations. Sphalerite is Cd-rich in the carbonate-poor rocks of the high-to intermediate-sulfidation environment. At this site, the mineral assemblage is poorly neutralizing and the metal dissolved concentrations increase downstream. The carbonate-rich rocks release Cd up to 1.25 mg L−1, which is higher than similar environments around the world. However, they rapidly decrease downstream to 0.0005 mg L−1 in < 3 km. The main processes that reduce Cd concentrations in the Capillitas hydrological basin are dilution with fresh waters, adsorption, precipitation, and co-precipitation with authigenic minerals such as efflorescent salts and Mn oxy-hydroxides. Toxic metal AMD Sulfide Sphalerite Rhodochrosite Colombo, Fernando verfasserin aut Lecomte, Karina L. verfasserin aut De Micco, Georgina verfasserin aut Bohé, Ana E. verfasserin aut Enthalten in Applied geochemistry Amsterdam [u.a.] : Elsevier Science, 1986 136 Online-Ressource (DE-627)306648091 (DE-600)1499242-5 (DE-576)08198426X nnns volume:136 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.32 Geochemie AR 136 |
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Cadmium sources, mobility, and natural attenuation in contrasting environments (carbonate-rich and carbonate-poor) in the Capillitas polymetallic mineral deposit, NW Argentina |
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Yaciuk, Pablo A. |
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Applied geochemistry |
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Yaciuk, Pablo A. Colombo, Fernando Lecomte, Karina L. De Micco, Georgina Bohé, Ana E. |
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Yaciuk, Pablo A. |
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10.1016/j.apgeochem.2021.105152 |
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title_sort |
cadmium sources, mobility, and natural attenuation in contrasting environments (carbonate-rich and carbonate-poor) in the capillitas polymetallic mineral deposit, nw argentina |
title_auth |
Cadmium sources, mobility, and natural attenuation in contrasting environments (carbonate-rich and carbonate-poor) in the Capillitas polymetallic mineral deposit, NW Argentina |
abstract |
Cadmium is one of the most toxic metals commonly released due to mining activities. However, its dynamic in contrasting mining environments has not been exhaustively studied. Through mineralogical and hydrochemical analyses, this study identifies Cd mineral sources and its mobility in surficial waters from two different mining environments (i.e. carbonate-rich and carbonate-poor mineral assemblages) within the polymetallic Capillitas deposit, in NW Argentina. Furthermore, a freshwater tributary stream without mining operations is analyzed as natural background. Results show that sphalerite weathering is the main process releasing Cd into surficial waters in both locations. Sphalerite is Cd-rich in the carbonate-poor rocks of the high-to intermediate-sulfidation environment. At this site, the mineral assemblage is poorly neutralizing and the metal dissolved concentrations increase downstream. The carbonate-rich rocks release Cd up to 1.25 mg L−1, which is higher than similar environments around the world. However, they rapidly decrease downstream to 0.0005 mg L−1 in < 3 km. The main processes that reduce Cd concentrations in the Capillitas hydrological basin are dilution with fresh waters, adsorption, precipitation, and co-precipitation with authigenic minerals such as efflorescent salts and Mn oxy-hydroxides. |
abstractGer |
Cadmium is one of the most toxic metals commonly released due to mining activities. However, its dynamic in contrasting mining environments has not been exhaustively studied. Through mineralogical and hydrochemical analyses, this study identifies Cd mineral sources and its mobility in surficial waters from two different mining environments (i.e. carbonate-rich and carbonate-poor mineral assemblages) within the polymetallic Capillitas deposit, in NW Argentina. Furthermore, a freshwater tributary stream without mining operations is analyzed as natural background. Results show that sphalerite weathering is the main process releasing Cd into surficial waters in both locations. Sphalerite is Cd-rich in the carbonate-poor rocks of the high-to intermediate-sulfidation environment. At this site, the mineral assemblage is poorly neutralizing and the metal dissolved concentrations increase downstream. The carbonate-rich rocks release Cd up to 1.25 mg L−1, which is higher than similar environments around the world. However, they rapidly decrease downstream to 0.0005 mg L−1 in < 3 km. The main processes that reduce Cd concentrations in the Capillitas hydrological basin are dilution with fresh waters, adsorption, precipitation, and co-precipitation with authigenic minerals such as efflorescent salts and Mn oxy-hydroxides. |
abstract_unstemmed |
Cadmium is one of the most toxic metals commonly released due to mining activities. However, its dynamic in contrasting mining environments has not been exhaustively studied. Through mineralogical and hydrochemical analyses, this study identifies Cd mineral sources and its mobility in surficial waters from two different mining environments (i.e. carbonate-rich and carbonate-poor mineral assemblages) within the polymetallic Capillitas deposit, in NW Argentina. Furthermore, a freshwater tributary stream without mining operations is analyzed as natural background. Results show that sphalerite weathering is the main process releasing Cd into surficial waters in both locations. Sphalerite is Cd-rich in the carbonate-poor rocks of the high-to intermediate-sulfidation environment. At this site, the mineral assemblage is poorly neutralizing and the metal dissolved concentrations increase downstream. The carbonate-rich rocks release Cd up to 1.25 mg L−1, which is higher than similar environments around the world. However, they rapidly decrease downstream to 0.0005 mg L−1 in < 3 km. The main processes that reduce Cd concentrations in the Capillitas hydrological basin are dilution with fresh waters, adsorption, precipitation, and co-precipitation with authigenic minerals such as efflorescent salts and Mn oxy-hydroxides. |
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title_short |
Cadmium sources, mobility, and natural attenuation in contrasting environments (carbonate-rich and carbonate-poor) in the Capillitas polymetallic mineral deposit, NW Argentina |
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Colombo, Fernando Lecomte, Karina L. De Micco, Georgina Bohé, Ana E. |
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