Matches in SemOpenAlex for { <https://semopenalex.org/work/W2056167820> ?p ?o ?g. }
- W2056167820 endingPage "556" @default.
- W2056167820 startingPage "533" @default.
- W2056167820 abstract "The mineral form, grain size and texture of As-bearing particles are important factors influencing the risk to human health associated with exposure to As-contaminated soils, sediments and mine wastes. Mining of arsenopyrite-bearing gold ores in Nova Scotia in the late 1800s and early 1900s has left a legacy of weathered, As-rich tailings deposits in more than 60 gold districts across the province. Fourteen samples of near-surface tailings and one of soil from several former gold mines frequented by the public were sieved to 20% As) mill concentrates exposed at the surface within the tailings deposits are dominated by a single As mineral, fine-grained scorodite (FeAsO4·2H2O) in one case, and massive unweathered arsenopyrite in the other. In the tailings (0.7 to 7% As), scorodite and amorphous hydrous ferric arsenate (HFA) are the most common As-bearing major components, occurring as discrete grains or grain coatings on gangue minerals. Other major As phases identified in the tailings include As-bearing amorphous hydrous ferric oxyhydroxides (HFO), kaňkite (FeAsO4·3.5H2O), pharmacosiderite [KFe4(AsO4)3(OH)4·6–7H2O], yukonite [Ca7Fe12(AsO4)10(OH)20·15H2O], amorphous Ca–Fe arsenates, and arsenopyrite. Minor or trace constituents include: As-bearing ferric oxyhydroxides with up to 10% As (HFO, goethite, lepidocrocite and akaganeite), As-bearing sulfates (jarosite [(K,Na,H3O)Fe3(SO4)2(OH)6], tooeleite [Fe6(AsO3)4(SO4)(OH)4·4H2O]) and realgar (As4S4). Arsenic-bearing HFO (2.5% As) and goethite (0.08% As) were identified in the single B-horizon soil sample. This study is part of a broader coordinated effort by a multi-department federal and provincial advisory committee formed to coordinate the study of ecosystem and human health risks associated with historical gold mine sites in Nova Scotia. Our study shows that (i) the mineralogy of As in weathered tailings is highly variable, with aggregates of more than one As-bearing phase common in a given sample, and (ii) major differences in As mineralogy in the tailings are mainly controlled by factors that influence the weathering history ( e.g. , presence or absence of mill concentrates, degree of water saturation, and abundance of relict carbonate minerals). The variable solubility of these primary and secondary As-bearing minerals influences both the environmental mobility and the bioaccessibility of As in near-surface tailings and soil samples." @default.
- W2056167820 created "2016-06-24" @default.
- W2056167820 creator A5006730684 @default.
- W2056167820 creator A5024510473 @default.
- W2056167820 creator A5041167890 @default.
- W2056167820 creator A5050115468 @default.
- W2056167820 date "2009-06-01" @default.
- W2056167820 modified "2023-10-16" @default.
- W2056167820 title "ARSENIC MINERALOGY OF NEAR-SURFACE TAILINGS AND SOILS: INFLUENCES ON ARSENIC MOBILITY AND BIOACCESSIBILITY IN THE NOVA SCOTIA GOLD MINING DISTRICTS" @default.
- W2056167820 cites W11260795 @default.
- W2056167820 cites W1489159561 @default.
- W2056167820 cites W1935610446 @default.
- W2056167820 cites W1964174750 @default.
- W2056167820 cites W1970434892 @default.
- W2056167820 cites W1972452852 @default.
- W2056167820 cites W1972516510 @default.
- W2056167820 cites W1973214469 @default.
- W2056167820 cites W1978190071 @default.
- W2056167820 cites W1978675441 @default.
- W2056167820 cites W1978764105 @default.
- W2056167820 cites W1981026196 @default.
- W2056167820 cites W1983466288 @default.
- W2056167820 cites W1984937774 @default.
- W2056167820 cites W1985422845 @default.
- W2056167820 cites W1987121057 @default.
- W2056167820 cites W1987369118 @default.
- W2056167820 cites W1987725309 @default.
- W2056167820 cites W1988546765 @default.
- W2056167820 cites W1998307677 @default.
- W2056167820 cites W2004245633 @default.
- W2056167820 cites W2004500679 @default.
- W2056167820 cites W2006047705 @default.
- W2056167820 cites W2006775846 @default.
- W2056167820 cites W2006811474 @default.
- W2056167820 cites W2007680055 @default.
- W2056167820 cites W2013813865 @default.
- W2056167820 cites W2014450417 @default.
- W2056167820 cites W2015640719 @default.
- W2056167820 cites W2016811984 @default.
- W2056167820 cites W2033649363 @default.
- W2056167820 cites W2033872226 @default.
- W2056167820 cites W2039466062 @default.
- W2056167820 cites W2047399051 @default.
- W2056167820 cites W2057544040 @default.
- W2056167820 cites W2066964139 @default.
- W2056167820 cites W2067462574 @default.
- W2056167820 cites W2072460324 @default.
- W2056167820 cites W2073226135 @default.
- W2056167820 cites W2080993356 @default.
- W2056167820 cites W2081953772 @default.
- W2056167820 cites W2083322852 @default.
- W2056167820 cites W2083968742 @default.
- W2056167820 cites W2093676946 @default.
- W2056167820 cites W2094109043 @default.
- W2056167820 cites W2112754374 @default.
- W2056167820 cites W2121511629 @default.
- W2056167820 cites W2122833781 @default.
- W2056167820 cites W2130008472 @default.
- W2056167820 cites W2136013745 @default.
- W2056167820 cites W2148032370 @default.
- W2056167820 cites W2150994813 @default.
- W2056167820 cites W2159031494 @default.
- W2056167820 cites W2187825601 @default.
- W2056167820 cites W2468820409 @default.
- W2056167820 cites W2506050571 @default.
- W2056167820 cites W2909647259 @default.
- W2056167820 doi "https://doi.org/10.3749/canmin.47.3.533" @default.
- W2056167820 hasPublicationYear "2009" @default.
- W2056167820 type Work @default.
- W2056167820 sameAs 2056167820 @default.
- W2056167820 citedByCount "106" @default.
- W2056167820 countsByYear W20561678202012 @default.
- W2056167820 countsByYear W20561678202013 @default.
- W2056167820 countsByYear W20561678202014 @default.
- W2056167820 countsByYear W20561678202015 @default.
- W2056167820 countsByYear W20561678202016 @default.
- W2056167820 countsByYear W20561678202017 @default.
- W2056167820 countsByYear W20561678202018 @default.
- W2056167820 countsByYear W20561678202019 @default.
- W2056167820 countsByYear W20561678202020 @default.
- W2056167820 countsByYear W20561678202021 @default.
- W2056167820 countsByYear W20561678202022 @default.
- W2056167820 countsByYear W20561678202023 @default.
- W2056167820 crossrefType "journal-article" @default.
- W2056167820 hasAuthorship W2056167820A5006730684 @default.
- W2056167820 hasAuthorship W2056167820A5024510473 @default.
- W2056167820 hasAuthorship W2056167820A5041167890 @default.
- W2056167820 hasAuthorship W2056167820A5050115468 @default.
- W2056167820 hasConcept C107872376 @default.
- W2056167820 hasConcept C111368507 @default.
- W2056167820 hasConcept C127313418 @default.
- W2056167820 hasConcept C159390177 @default.
- W2056167820 hasConcept C159750122 @default.
- W2056167820 hasConcept C16674752 @default.
- W2056167820 hasConcept C17409809 @default.
- W2056167820 hasConcept C185592680 @default.
- W2056167820 hasConcept C191897082 @default.
- W2056167820 hasConcept C192562407 @default.