A Geochemical and Geophysical Characterization of Sulfide Mine Ponds at the Iberian Pyrite Belt (Spain)
This work presents the results of a geochemical and geophysical characterization of the Monte Romero and La Naya mine ponds, belonging to the Cueva de la Mora and Riotinto mine districts, respectively, based on mineralogical, geochemical and geophysical techniques. In order to obtain a representativ...
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| creator | Martín-Crespo, Tomás Martín-Velázquez, Silvia Gómez-Ortiz, David De Ignacio-San José, Cristina Lillo-Ramos, Javier |
| description | This work presents the results of a geochemical and geophysical characterization of the Monte Romero and La Naya mine ponds, belonging to the Cueva de la Mora and Riotinto mine districts, respectively, based on mineralogical, geochemical and geophysical techniques. In order to obtain a representative environmental characterization, two deposits showing different mineralogies, physico-chemical parameters, chemical compositions of tailings and pond conditions were selected. Monte Romero mine tailings showed an upper level mainly composed of silicates and a deeper level mainly composed of sulfides and barite. The toxic metal content was different in both levels but high enough to exceed the regional legal concentration limits for agricultural soils. An electrical resistivity tomography survey revealed a homogeneous upper unit (3 m thickness), which displayed low resistivity values, corresponding to water-saturated silt and clay materials with an abundance of sulfides which was interpreted as the pond infilling. The La Naya mine pond presented a homogeneous mineralogical composition made up of quartz as the main mineral and chlorite-smectite and jarosite as accessory phases. The absence of sulfide phases and the low contents of metal elements are directly related to the reworking processes of the sludge dumped in this pond. The geophysical survey revealed that the pond infilling did not have a constant thickness, but ranged between 15 and 20 m. An inner groundwater flow in the infilling was recognized. The low resistivity values allowed the presence of acid waters and related subsurface flows to be identified in both mine ponds, but no acid water drainage occurred across their vessels. When compared to the Aznalcóllar tailings spill, the La Naya pond is large enough to release a similar amount of sludge, but of a very low metal content. The Monte Romero sludge displays a similar, potentially toxic metal content to the Aznalcóllar sludge, but its size is significantly smaller. |
| doi_str_mv | 10.1007/s11270-010-0595-6 |
| format | Article |
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In order to obtain a representative environmental characterization, two deposits showing different mineralogies, physico-chemical parameters, chemical compositions of tailings and pond conditions were selected. Monte Romero mine tailings showed an upper level mainly composed of silicates and a deeper level mainly composed of sulfides and barite. The toxic metal content was different in both levels but high enough to exceed the regional legal concentration limits for agricultural soils. An electrical resistivity tomography survey revealed a homogeneous upper unit (3 m thickness), which displayed low resistivity values, corresponding to water-saturated silt and clay materials with an abundance of sulfides which was interpreted as the pond infilling. The La Naya mine pond presented a homogeneous mineralogical composition made up of quartz as the main mineral and chlorite-smectite and jarosite as accessory phases. The absence of sulfide phases and the low contents of metal elements are directly related to the reworking processes of the sludge dumped in this pond. The geophysical survey revealed that the pond infilling did not have a constant thickness, but ranged between 15 and 20 m. An inner groundwater flow in the infilling was recognized. The low resistivity values allowed the presence of acid waters and related subsurface flows to be identified in both mine ponds, but no acid water drainage occurred across their vessels. When compared to the Aznalcóllar tailings spill, the La Naya pond is large enough to release a similar amount of sludge, but of a very low metal content. The Monte Romero sludge displays a similar, potentially toxic metal content to the Aznalcóllar sludge, but its size is significantly smaller.</description><identifier>ISSN: 0049-6979</identifier><identifier>EISSN: 1573-2932</identifier><identifier>DOI: 10.1007/s11270-010-0595-6</identifier><identifier>CODEN: WAPLAC</identifier><language>eng</language><publisher>Dordrecht: Springer Netherlands</publisher><subject>Acid mine drainage ; Agricultural land ; Atmospheric Protection/Air Quality Control/Air Pollution ; Chemical properties ; Clay ; Climate Change/Climate Change Impacts ; Earth and Environmental Science ; Earth sciences ; Earth, ocean, space ; Electric properties ; Electrical resistivity ; Engineering and environment geology. Geothermics ; Environment ; Environmental impact ; Environmental monitoring ; Exact sciences and technology ; Geochemistry ; Groundwater ; Groundwater flow ; Heavy metals ; Hydrogeology ; Industrial wastes ; Metals ; Mine tailings ; Mine wastes ; Mineralogy ; Minerals ; Mining ; Pollution, environment geology ; Ponds ; Pyrite ; Sediments ; Silicates ; Silicon compounds ; Sludge ; Smectite ; Soil contaminants ; Soil Science & Conservation ; Studies ; Sulfides ; Surveys ; Tomography ; Trace elements ; Water Quality/Water Pollution ; Water, Underground</subject><ispartof>Water, air, and soil pollution, 2011-05, Vol.217 (1-4), p.387-405</ispartof><rights>Springer Science+Business Media B.V. 2010</rights><rights>2015 INIST-CNRS</rights><rights>COPYRIGHT 2011 Springer</rights><rights>Springer Science+Business Media B.V. 2011</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a472t-6c7017bcf834832cd96902d6f50d997c7f0526cc4066756feab2661de7f1de433</citedby><cites>FETCH-LOGICAL-a472t-6c7017bcf834832cd96902d6f50d997c7f0526cc4066756feab2661de7f1de433</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11270-010-0595-6$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11270-010-0595-6$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24094856$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Martín-Crespo, Tomás</creatorcontrib><creatorcontrib>Martín-Velázquez, Silvia</creatorcontrib><creatorcontrib>Gómez-Ortiz, David</creatorcontrib><creatorcontrib>De Ignacio-San José, Cristina</creatorcontrib><creatorcontrib>Lillo-Ramos, Javier</creatorcontrib><title>A Geochemical and Geophysical Characterization of Sulfide Mine Ponds at the Iberian Pyrite Belt (Spain)</title><title>Water, air, and soil pollution</title><addtitle>Water Air Soil Pollut</addtitle><description>This work presents the results of a geochemical and geophysical characterization of the Monte Romero and La Naya mine ponds, belonging to the Cueva de la Mora and Riotinto mine districts, respectively, based on mineralogical, geochemical and geophysical techniques. In order to obtain a representative environmental characterization, two deposits showing different mineralogies, physico-chemical parameters, chemical compositions of tailings and pond conditions were selected. Monte Romero mine tailings showed an upper level mainly composed of silicates and a deeper level mainly composed of sulfides and barite. The toxic metal content was different in both levels but high enough to exceed the regional legal concentration limits for agricultural soils. An electrical resistivity tomography survey revealed a homogeneous upper unit (3 m thickness), which displayed low resistivity values, corresponding to water-saturated silt and clay materials with an abundance of sulfides which was interpreted as the pond infilling. The La Naya mine pond presented a homogeneous mineralogical composition made up of quartz as the main mineral and chlorite-smectite and jarosite as accessory phases. The absence of sulfide phases and the low contents of metal elements are directly related to the reworking processes of the sludge dumped in this pond. The geophysical survey revealed that the pond infilling did not have a constant thickness, but ranged between 15 and 20 m. An inner groundwater flow in the infilling was recognized. The low resistivity values allowed the presence of acid waters and related subsurface flows to be identified in both mine ponds, but no acid water drainage occurred across their vessels. When compared to the Aznalcóllar tailings spill, the La Naya pond is large enough to release a similar amount of sludge, but of a very low metal content. The Monte Romero sludge displays a similar, potentially toxic metal content to the Aznalcóllar sludge, but its size is significantly smaller.</description><subject>Acid mine drainage</subject><subject>Agricultural land</subject><subject>Atmospheric Protection/Air Quality Control/Air Pollution</subject><subject>Chemical properties</subject><subject>Clay</subject><subject>Climate Change/Climate Change Impacts</subject><subject>Earth and Environmental Science</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Electric properties</subject><subject>Electrical resistivity</subject><subject>Engineering and environment geology. 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Pollut</stitle><date>2011-05-01</date><risdate>2011</risdate><volume>217</volume><issue>1-4</issue><spage>387</spage><epage>405</epage><pages>387-405</pages><issn>0049-6979</issn><eissn>1573-2932</eissn><coden>WAPLAC</coden><abstract>This work presents the results of a geochemical and geophysical characterization of the Monte Romero and La Naya mine ponds, belonging to the Cueva de la Mora and Riotinto mine districts, respectively, based on mineralogical, geochemical and geophysical techniques. In order to obtain a representative environmental characterization, two deposits showing different mineralogies, physico-chemical parameters, chemical compositions of tailings and pond conditions were selected. Monte Romero mine tailings showed an upper level mainly composed of silicates and a deeper level mainly composed of sulfides and barite. The toxic metal content was different in both levels but high enough to exceed the regional legal concentration limits for agricultural soils. An electrical resistivity tomography survey revealed a homogeneous upper unit (3 m thickness), which displayed low resistivity values, corresponding to water-saturated silt and clay materials with an abundance of sulfides which was interpreted as the pond infilling. The La Naya mine pond presented a homogeneous mineralogical composition made up of quartz as the main mineral and chlorite-smectite and jarosite as accessory phases. The absence of sulfide phases and the low contents of metal elements are directly related to the reworking processes of the sludge dumped in this pond. The geophysical survey revealed that the pond infilling did not have a constant thickness, but ranged between 15 and 20 m. An inner groundwater flow in the infilling was recognized. The low resistivity values allowed the presence of acid waters and related subsurface flows to be identified in both mine ponds, but no acid water drainage occurred across their vessels. When compared to the Aznalcóllar tailings spill, the La Naya pond is large enough to release a similar amount of sludge, but of a very low metal content. The Monte Romero sludge displays a similar, potentially toxic metal content to the Aznalcóllar sludge, but its size is significantly smaller.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><doi>10.1007/s11270-010-0595-6</doi><tpages>19</tpages></addata></record> |
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| subjects | Acid mine drainage Agricultural land Atmospheric Protection/Air Quality Control/Air Pollution Chemical properties Clay Climate Change/Climate Change Impacts Earth and Environmental Science Earth sciences Earth, ocean, space Electric properties Electrical resistivity Engineering and environment geology. Geothermics Environment Environmental impact Environmental monitoring Exact sciences and technology Geochemistry Groundwater Groundwater flow Heavy metals Hydrogeology Industrial wastes Metals Mine tailings Mine wastes Mineralogy Minerals Mining Pollution, environment geology Ponds Pyrite Sediments Silicates Silicon compounds Sludge Smectite Soil contaminants Soil Science & Conservation Studies Sulfides Surveys Tomography Trace elements Water Quality/Water Pollution Water, Underground |
| title | A Geochemical and Geophysical Characterization of Sulfide Mine Ponds at the Iberian Pyrite Belt (Spain) |
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