Matches in SemOpenAlex for { <https://semopenalex.org/work/W804516479> ?p ?o ?g. }
Showing items 1 to 76 of
76
with 100 items per page.
- W804516479 abstract "The success of imaging spectrometry in mineralogic mapping of natural terrains indicates that the technology can also be used to assess the environmental impact of human activities in certain instances. Specifically, this paper describes an investigation into the use of data from the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) for mapping the spread of, and assessing changes in, the mineralogic character of tailings from a major silver and base metal mining district. The area under investigation is the Coeur d'Alene River Valley in northern Idaho. Mining has been going on in and around the towns of Kellogg and Wallace, Idaho since the 1880's. In the Kellogg-Smelterville Flats area, west of Kellogg, mine tailings were piled alongside the South Fork of the Coeur d'Alene River. Until the construction of tailings ponds in 1968 much of these waste materials were washed directly into the South Fork. The Kellogg-Smelterville area was declared an Environmental Protection Agency (EPA) Superfund site in 1983 and remediation efforts are currently underway. Recent studies have demonstrated that sediments in the Coeur d'Alene River and in the northern part of Lake Coeur d'Alene, into which the river flows, are highly enriched in Ag, Cu, Pb, Zn, Cd, Hg, As, and Sb. These trace metals have become aggregated in iron oxide and oxyhydroxide minerals and/or mineraloids. Reflectance spectra of iron-rich tailing materials are shown. Also shown are spectra of hematite and goethite. The broad bandwidth and long band center (near 1 micron) of the Fe(3+) crystal-field band of the iron-rich sediment samples combined with the lack of features on the Fe(3+) -O(2-) charge transfer absorption edge indicates that the ferric oxide and/or oxyhydroxide in these sediments is poorly crystalline to amorphous in character. Similar features are seen in poorly crystalline basaltic weathering products (e.g., palagonites). The problem of mapping and analyzing the downriver occurrences of iron rich tailings in the Coeur d'Alene (CDA) River Valley using remotely sensed data is complicated by the full vegetation cover present in the area. Because exposures of rock and soil were sparse, the data processing techniques used in this study were sensitive to detecting materials at subpixel scales. The methods used included spectral mixture analysis and a constrained energy minimization technique." @default.
- W804516479 created "2016-06-24" @default.
- W804516479 creator A5028033974 @default.
- W804516479 creator A5040208196 @default.
- W804516479 date "1995-01-23" @default.
- W804516479 modified "2023-09-27" @default.
- W804516479 title "Mineralogic variations in fluvial sediments contaminated by mine tailings as determined from AVIRIS data, Coeur D'Alene River Valley, Idaho" @default.
- W804516479 cites W169105308 @default.
- W804516479 cites W2050917502 @default.
- W804516479 cites W2150408954 @default.
- W804516479 hasPublicationYear "1995" @default.
- W804516479 type Work @default.
- W804516479 sameAs 804516479 @default.
- W804516479 citedByCount "2" @default.
- W804516479 crossrefType "journal-article" @default.
- W804516479 hasAuthorship W804516479A5028033974 @default.
- W804516479 hasAuthorship W804516479A5040208196 @default.
- W804516479 hasConcept C109007969 @default.
- W804516479 hasConcept C112570922 @default.
- W804516479 hasConcept C112959462 @default.
- W804516479 hasConcept C114793014 @default.
- W804516479 hasConcept C127313418 @default.
- W804516479 hasConcept C147789679 @default.
- W804516479 hasConcept C16674752 @default.
- W804516479 hasConcept C178790620 @default.
- W804516479 hasConcept C185592680 @default.
- W804516479 hasConcept C18903297 @default.
- W804516479 hasConcept C2778566039 @default.
- W804516479 hasConcept C39432304 @default.
- W804516479 hasConcept C5166401 @default.
- W804516479 hasConcept C522964758 @default.
- W804516479 hasConcept C544153396 @default.
- W804516479 hasConcept C86803240 @default.
- W804516479 hasConceptScore W804516479C109007969 @default.
- W804516479 hasConceptScore W804516479C112570922 @default.
- W804516479 hasConceptScore W804516479C112959462 @default.
- W804516479 hasConceptScore W804516479C114793014 @default.
- W804516479 hasConceptScore W804516479C127313418 @default.
- W804516479 hasConceptScore W804516479C147789679 @default.
- W804516479 hasConceptScore W804516479C16674752 @default.
- W804516479 hasConceptScore W804516479C178790620 @default.
- W804516479 hasConceptScore W804516479C185592680 @default.
- W804516479 hasConceptScore W804516479C18903297 @default.
- W804516479 hasConceptScore W804516479C2778566039 @default.
- W804516479 hasConceptScore W804516479C39432304 @default.
- W804516479 hasConceptScore W804516479C5166401 @default.
- W804516479 hasConceptScore W804516479C522964758 @default.
- W804516479 hasConceptScore W804516479C544153396 @default.
- W804516479 hasConceptScore W804516479C86803240 @default.
- W804516479 hasLocation W8045164791 @default.
- W804516479 hasOpenAccess W804516479 @default.
- W804516479 hasPrimaryLocation W8045164791 @default.
- W804516479 hasRelatedWork W1276518688 @default.
- W804516479 hasRelatedWork W146016932 @default.
- W804516479 hasRelatedWork W1483262879 @default.
- W804516479 hasRelatedWork W1513057734 @default.
- W804516479 hasRelatedWork W151945197 @default.
- W804516479 hasRelatedWork W1534991964 @default.
- W804516479 hasRelatedWork W1599625999 @default.
- W804516479 hasRelatedWork W169105308 @default.
- W804516479 hasRelatedWork W1966298162 @default.
- W804516479 hasRelatedWork W1996888404 @default.
- W804516479 hasRelatedWork W2063359776 @default.
- W804516479 hasRelatedWork W2069709646 @default.
- W804516479 hasRelatedWork W2089625970 @default.
- W804516479 hasRelatedWork W2142501652 @default.
- W804516479 hasRelatedWork W235605390 @default.
- W804516479 hasRelatedWork W2433900892 @default.
- W804516479 hasRelatedWork W267120948 @default.
- W804516479 hasRelatedWork W2913263086 @default.
- W804516479 hasRelatedWork W3022826489 @default.
- W804516479 hasRelatedWork W317329662 @default.
- W804516479 isParatext "false" @default.
- W804516479 isRetracted "false" @default.
- W804516479 magId "804516479" @default.
- W804516479 workType "article" @default.