Matches in SemOpenAlex for { <https://semopenalex.org/work/W33299403> ?p ?o ?g. }
Showing items 1 to 78 of
78
with 100 items per page.
- W33299403 abstract "The headwaters of the Cheyenne and Belle Fourche Rivers drain the Black Hills of South Dakota and Wyoming, an area that has been affected by mining and ore-milling operations since the discovery of gold in 1875. A tributary to the Belle Fourche River is Whitewood Creek, which drains the area of the Homestake Mine, a gold mine that operated from 1876 to 2001. Tailings discharged into Whitewood Creek contained arsenopyrite, an arsenic-rich variety of pyrite associated with gold ore, and mercury used as an amalgam during the gold-extraction process. Approximately 18 percent of the tailings that were discharged remain in fluvial deposits on the flood plain along Whitewood Creek, and approximately 25 percent remain in fluvial deposits on the flood plain along the Belle Fourche River, downstream from Whitewood Creek. In 1983, a 29-kilometer (18-mile) reach of Whitewood Creek and the adjacent flood plain was included in the U.S. Environmental Protection Agency's National Priority List of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980, commonly referred to as a Superfund site. Listing of this reach of Whitewood Creek was primarily in response to arsenic toxicity of fluvial deposits on the flood plain. Lands along the lower Cheyenne River were transferred to adjoining States and Tribes in response to the Water Resources Development Act (WRDA) of 1999. An amendment in 2000 to WRDA required a study of sediment contamination of the Cheyenne River. In response to the WRDA amendment, the U.S. Geological Survey completed field sampling of reference sites (not affected by mine-tailing disposal) along the lower Belle Fourche and lower Cheyenne Rivers. Reference sites were located on stream terraces that were elevated well above historical stream stages to ensure no contamination from historical mining activity. Sampling of potentially contaminated sites was performed on transects of the active flood plain and adjacent terraces that could potentially be inundated during high-flow events. Sampling began in 2009 and was completed in 2010. A total of 74 geochemical samples were collected from fluvial deposits at reference sites, and 473 samples were collected from potentially contaminated sites. Sediment samples collected were analyzed for 23 metals, including arsenic and mercury. Sequential replicate, split duplicate, and field quality-control samples were analyzed for quality assurance of data-collection methods. The metal concentrations in sediment samples and location information are presented in this report in electronic format (Microsoft Excel), along with non-parametric summary statistics of those data. Cross-sectional topography is graphed with arsenic and mercury concentrations on transects at the potentially contaminated sites. The mean arsenic concentration in reference sediment samples was 8 milligrams per kilogram (mg/kg), compared to 250, 650, and 76 mg/kg for potentially contaminated sediment samples at the surface of the middle Belle Fourche River site, the subsurface of the middle Belle Fourche River site, and the surface of the lower Cheyenne River site, respectively. The mean mercury concentration in reference sediment samples was 16 micrograms per kilogram (μg/kg), compared to 130, 370, and 71 μg/kg for potentially contaminated sediment samples at the surface of the middle Belle Fourche River site, the subsurface of the middle Belle Fourche River site, and the surface of the lower Cheyenne River site, respectively." @default.
- W33299403 created "2016-06-24" @default.
- W33299403 creator A5036698427 @default.
- W33299403 creator A5081514195 @default.
- W33299403 date "2012-01-01" @default.
- W33299403 modified "2023-09-27" @default.
- W33299403 title "Concentrations of selected metals in Quaternary-age fluvial deposits along the lower Cheyenne and middle Belle Fourche Rivers, western South Dakota, 2009-10" @default.
- W33299403 doi "https://doi.org/10.3133/ds695" @default.
- W33299403 hasPublicationYear "2012" @default.
- W33299403 type Work @default.
- W33299403 sameAs 33299403 @default.
- W33299403 citedByCount "5" @default.
- W33299403 countsByYear W332994032013 @default.
- W33299403 countsByYear W332994032015 @default.
- W33299403 countsByYear W332994032017 @default.
- W33299403 countsByYear W332994032018 @default.
- W33299403 countsByYear W332994032019 @default.
- W33299403 crossrefType "journal-article" @default.
- W33299403 hasAuthorship W33299403A5036698427 @default.
- W33299403 hasAuthorship W33299403A5081514195 @default.
- W33299403 hasBestOaLocation W332994031 @default.
- W33299403 hasConcept C109007969 @default.
- W33299403 hasConcept C112959462 @default.
- W33299403 hasConcept C114793014 @default.
- W33299403 hasConcept C127313418 @default.
- W33299403 hasConcept C147789679 @default.
- W33299403 hasConcept C155681218 @default.
- W33299403 hasConcept C16674752 @default.
- W33299403 hasConcept C166957645 @default.
- W33299403 hasConcept C16828302 @default.
- W33299403 hasConcept C17409809 @default.
- W33299403 hasConcept C185592680 @default.
- W33299403 hasConcept C187320778 @default.
- W33299403 hasConcept C191897082 @default.
- W33299403 hasConcept C192562407 @default.
- W33299403 hasConcept C205649164 @default.
- W33299403 hasConcept C2776760134 @default.
- W33299403 hasConcept C2778061587 @default.
- W33299403 hasConcept C5166401 @default.
- W33299403 hasConcept C58640448 @default.
- W33299403 hasConcept C76886044 @default.
- W33299403 hasConceptScore W33299403C109007969 @default.
- W33299403 hasConceptScore W33299403C112959462 @default.
- W33299403 hasConceptScore W33299403C114793014 @default.
- W33299403 hasConceptScore W33299403C127313418 @default.
- W33299403 hasConceptScore W33299403C147789679 @default.
- W33299403 hasConceptScore W33299403C155681218 @default.
- W33299403 hasConceptScore W33299403C16674752 @default.
- W33299403 hasConceptScore W33299403C166957645 @default.
- W33299403 hasConceptScore W33299403C16828302 @default.
- W33299403 hasConceptScore W33299403C17409809 @default.
- W33299403 hasConceptScore W33299403C185592680 @default.
- W33299403 hasConceptScore W33299403C187320778 @default.
- W33299403 hasConceptScore W33299403C191897082 @default.
- W33299403 hasConceptScore W33299403C192562407 @default.
- W33299403 hasConceptScore W33299403C205649164 @default.
- W33299403 hasConceptScore W33299403C2776760134 @default.
- W33299403 hasConceptScore W33299403C2778061587 @default.
- W33299403 hasConceptScore W33299403C5166401 @default.
- W33299403 hasConceptScore W33299403C58640448 @default.
- W33299403 hasConceptScore W33299403C76886044 @default.
- W33299403 hasLocation W332994031 @default.
- W33299403 hasOpenAccess W33299403 @default.
- W33299403 hasPrimaryLocation W332994031 @default.
- W33299403 hasRelatedWork W1529261671 @default.
- W33299403 hasRelatedWork W1764566848 @default.
- W33299403 hasRelatedWork W1967818403 @default.
- W33299403 hasRelatedWork W1988075072 @default.
- W33299403 hasRelatedWork W2012794823 @default.
- W33299403 hasRelatedWork W2145722632 @default.
- W33299403 hasRelatedWork W2334985306 @default.
- W33299403 hasRelatedWork W2619979477 @default.
- W33299403 hasRelatedWork W3119403734 @default.
- W33299403 hasRelatedWork W33333875 @default.
- W33299403 isParatext "false" @default.
- W33299403 isRetracted "false" @default.
- W33299403 magId "33299403" @default.
- W33299403 workType "article" @default.