Matches in SemOpenAlex for { <https://semopenalex.org/work/W2111408083> ?p ?o ?g. }
Showing items 1 to 68 of
68
with 100 items per page.
- W2111408083 endingPage "183" @default.
- W2111408083 startingPage "165" @default.
- W2111408083 abstract "The noble element patterns from four nickel sulfide deposits in komatiites of the Abitibi greenstone belt exhibit various degrees of fractionation (Pd/Ir ratios for Dundonald, Texmont, Hart, and Alexo are 10, 5, 12, and 116, respectively). The noble element patterns could have been affected by: metamorphism (including hydrothermal alteration), contamination of the magma by a sediment, crystal fractionation of monosulfide solid solution, solubility of Os-Ir alloys and RuS2 , and timing of sulfur saturation.Noble element patterns of samples from the deposits (Dundonald and Alexo) of the lowest metamorphic grade (prehnite-pumpellyite facies) are smooth and exhibit no or very small Au and Pt anomalies. However, some samples from Texmont (mid-greenschist facies metamorphism) contain Pt and Au anomalies. Further, all samples from the Hart deposit, which has experienced carbonate alteration, have large negative Pt and Au anomalies.Contamination of the komatiites with Fe sulfide-rich sediments found in their vicinity will not change the noble element patterns appreciably. A 10 percent contamination of the komatiites will change the Pd/Ir ratio of the sulfides from approximately 5 to 7.5.The massive sulfide at the base of the Alexo deposit has a Pd/Ir ratio of 44, the overlying net-textured ore has a Pd/Ir ratio of 171. This change in Pd/Ir ratios could be due to the fractionation of monosulfide solid solution from the sulfide liquid.The difference in noble element fractionation between the four deposits does not appear to be related to differences in the lithophile element composition of the silicate liquid from which the sulfides separated, since all four deposits have a similar lithophile chemistry. It is proposed that the differences in the fractionation of the noble element between the deposits is the combined result of the timing of sulfur saturation and the lower solubility of Os-Ir and RuS2 in the silicate melt compared to Rh, Pt, and Pd." @default.
- W2111408083 created "2016-06-24" @default.
- W2111408083 creator A5020896259 @default.
- W2111408083 creator A5077764094 @default.
- W2111408083 date "1987-02-01" @default.
- W2111408083 modified "2023-09-25" @default.
- W2111408083 title "Fractionation of the platinum-group elements and gold in some komatiites of the Abitibi greenstone belt, northern Ontario" @default.
- W2111408083 doi "https://doi.org/10.2113/gsecongeo.82.1.165" @default.
- W2111408083 hasPublicationYear "1987" @default.
- W2111408083 type Work @default.
- W2111408083 sameAs 2111408083 @default.
- W2111408083 citedByCount "45" @default.
- W2111408083 countsByYear W21114080832012 @default.
- W2111408083 countsByYear W21114080832014 @default.
- W2111408083 countsByYear W21114080832016 @default.
- W2111408083 countsByYear W21114080832018 @default.
- W2111408083 countsByYear W21114080832019 @default.
- W2111408083 countsByYear W21114080832020 @default.
- W2111408083 countsByYear W21114080832022 @default.
- W2111408083 countsByYear W21114080832023 @default.
- W2111408083 crossrefType "journal-article" @default.
- W2111408083 hasAuthorship W2111408083A5020896259 @default.
- W2111408083 hasAuthorship W2111408083A5077764094 @default.
- W2111408083 hasConcept C127313418 @default.
- W2111408083 hasConcept C149347711 @default.
- W2111408083 hasConcept C161790260 @default.
- W2111408083 hasConcept C17409809 @default.
- W2111408083 hasConcept C178790620 @default.
- W2111408083 hasConcept C185592680 @default.
- W2111408083 hasConcept C2780733770 @default.
- W2111408083 hasConcept C2781251403 @default.
- W2111408083 hasConcept C2781311116 @default.
- W2111408083 hasConcept C518104683 @default.
- W2111408083 hasConcept C55493867 @default.
- W2111408083 hasConcept C97428945 @default.
- W2111408083 hasConceptScore W2111408083C127313418 @default.
- W2111408083 hasConceptScore W2111408083C149347711 @default.
- W2111408083 hasConceptScore W2111408083C161790260 @default.
- W2111408083 hasConceptScore W2111408083C17409809 @default.
- W2111408083 hasConceptScore W2111408083C178790620 @default.
- W2111408083 hasConceptScore W2111408083C185592680 @default.
- W2111408083 hasConceptScore W2111408083C2780733770 @default.
- W2111408083 hasConceptScore W2111408083C2781251403 @default.
- W2111408083 hasConceptScore W2111408083C2781311116 @default.
- W2111408083 hasConceptScore W2111408083C518104683 @default.
- W2111408083 hasConceptScore W2111408083C55493867 @default.
- W2111408083 hasConceptScore W2111408083C97428945 @default.
- W2111408083 hasIssue "1" @default.
- W2111408083 hasLocation W21114080831 @default.
- W2111408083 hasOpenAccess W2111408083 @default.
- W2111408083 hasPrimaryLocation W21114080831 @default.
- W2111408083 hasRelatedWork W1493536597 @default.
- W2111408083 hasRelatedWork W2036099453 @default.
- W2111408083 hasRelatedWork W2080469507 @default.
- W2111408083 hasRelatedWork W2084314952 @default.
- W2111408083 hasRelatedWork W2965377153 @default.
- W2111408083 hasRelatedWork W3044776825 @default.
- W2111408083 hasRelatedWork W3196439182 @default.
- W2111408083 hasRelatedWork W4235203013 @default.
- W2111408083 hasRelatedWork W613125200 @default.
- W2111408083 hasRelatedWork W2461706273 @default.
- W2111408083 hasVolume "82" @default.
- W2111408083 isParatext "false" @default.
- W2111408083 isRetracted "false" @default.
- W2111408083 magId "2111408083" @default.
- W2111408083 workType "article" @default.