Matches in SemOpenAlex for { <https://semopenalex.org/work/W2287220281> ?p ?o ?g. }
Showing items 1 to 92 of
92
with 100 items per page.
- W2287220281 endingPage "795" @default.
- W2287220281 startingPage "781" @default.
- W2287220281 abstract "Serra Pelada is a world-class hydrothermal Au-Pd-Pt deposit located at the eastern border of the Amazon craton, northern Brazil. The rocks at Serra Pelada have experienced intense tropical weathering for about 70 Ma, but drill core samples preserve the primary mineralogy and hydrothermal alteration features, with extreme grades of Au, Pd and Pt individually reaching hundreds of parts per million (ppm) by weight. Mineralization at Serra Pelada occurs in hydrothermally altered metasiltstones and dolomitic metasandstones at the hinge zone of a recumbent syncline, comprising zones of hematite, chlorite-carbon, argillic, and siliceous alteration. The main hydrothermal gangue minerals are quartz, kaolinite, sericite, amesite, hematite, monazite, florencite and variable amounts of highly reflective carbonaceous matter. Hydrothermal carbon input is evident from precipitated carbon occurring along crenulation planes and veinlets associated with the precious metals. Ore and accessory minerals include a variety of sulphide, selenide, arsenide, sulphate and oxide minerals, including gold with variable metal contents, palladian gold, fischesserite, sudovikovite, sperrylite, selenian braggite, isomertieite, mertieite-II and secondary Au-Pt-Pd alloys. The composition of fischesserite varies from the ideal formula (Ag3AuSe2) towards a more Ag-rich composition, indicating a disordered solid solution form that is stable only above 260 °C, consistent with the high thermal maturity of associated carbonaceous matter approaching graphite. Primary ore and gangue minerals at Serra Pelada comprise a suite of elements that are best transported in oxidising conditions and precipitated upon reduction. This suggests that fluid mixing between a highly oxidised (metal carrier) and a reduced fluid was a key process for high-grade noble metal precipitation at Serra Pelada." @default.
- W2287220281 created "2016-06-24" @default.
- W2287220281 creator A5016804958 @default.
- W2287220281 creator A5024299583 @default.
- W2287220281 creator A5035820910 @default.
- W2287220281 creator A5053793226 @default.
- W2287220281 date "2016-01-28" @default.
- W2287220281 modified "2023-09-25" @default.
- W2287220281 title "Ore mineralogy of the Serra Pelada Au-Pd-Pt deposit, Carajás, Brazil and implications for ore-forming processes" @default.
- W2287220281 cites W1967794122 @default.
- W2287220281 cites W1968519088 @default.
- W2287220281 cites W1985492521 @default.
- W2287220281 cites W2010240046 @default.
- W2287220281 cites W2019461037 @default.
- W2287220281 cites W2052534726 @default.
- W2287220281 cites W2079734647 @default.
- W2287220281 cites W2097578650 @default.
- W2287220281 cites W2112159631 @default.
- W2287220281 cites W2114964012 @default.
- W2287220281 cites W2127199051 @default.
- W2287220281 cites W2132227502 @default.
- W2287220281 cites W2137555125 @default.
- W2287220281 cites W2503154566 @default.
- W2287220281 cites W2618953586 @default.
- W2287220281 cites W4254521307 @default.
- W2287220281 doi "https://doi.org/10.1007/s00126-015-0635-7" @default.
- W2287220281 hasPublicationYear "2016" @default.
- W2287220281 type Work @default.
- W2287220281 sameAs 2287220281 @default.
- W2287220281 citedByCount "9" @default.
- W2287220281 countsByYear W22872202812018 @default.
- W2287220281 countsByYear W22872202812019 @default.
- W2287220281 countsByYear W22872202812020 @default.
- W2287220281 countsByYear W22872202812021 @default.
- W2287220281 countsByYear W22872202812022 @default.
- W2287220281 countsByYear W22872202812023 @default.
- W2287220281 crossrefType "journal-article" @default.
- W2287220281 hasAuthorship W2287220281A5016804958 @default.
- W2287220281 hasAuthorship W2287220281A5024299583 @default.
- W2287220281 hasAuthorship W2287220281A5035820910 @default.
- W2287220281 hasAuthorship W2287220281A5053793226 @default.
- W2287220281 hasBestOaLocation W22872202812 @default.
- W2287220281 hasConcept C127313418 @default.
- W2287220281 hasConcept C156622251 @default.
- W2287220281 hasConcept C165205528 @default.
- W2287220281 hasConcept C17409809 @default.
- W2287220281 hasConcept C191897082 @default.
- W2287220281 hasConcept C192562407 @default.
- W2287220281 hasConcept C199289684 @default.
- W2287220281 hasConcept C2776062231 @default.
- W2287220281 hasConcept C2778188036 @default.
- W2287220281 hasConcept C2778583526 @default.
- W2287220281 hasConcept C2779131772 @default.
- W2287220281 hasConcept C2780375929 @default.
- W2287220281 hasConcept C2780756512 @default.
- W2287220281 hasConcept C544778455 @default.
- W2287220281 hasConceptScore W2287220281C127313418 @default.
- W2287220281 hasConceptScore W2287220281C156622251 @default.
- W2287220281 hasConceptScore W2287220281C165205528 @default.
- W2287220281 hasConceptScore W2287220281C17409809 @default.
- W2287220281 hasConceptScore W2287220281C191897082 @default.
- W2287220281 hasConceptScore W2287220281C192562407 @default.
- W2287220281 hasConceptScore W2287220281C199289684 @default.
- W2287220281 hasConceptScore W2287220281C2776062231 @default.
- W2287220281 hasConceptScore W2287220281C2778188036 @default.
- W2287220281 hasConceptScore W2287220281C2778583526 @default.
- W2287220281 hasConceptScore W2287220281C2779131772 @default.
- W2287220281 hasConceptScore W2287220281C2780375929 @default.
- W2287220281 hasConceptScore W2287220281C2780756512 @default.
- W2287220281 hasConceptScore W2287220281C544778455 @default.
- W2287220281 hasIssue "6" @default.
- W2287220281 hasLocation W22872202811 @default.
- W2287220281 hasLocation W22872202812 @default.
- W2287220281 hasOpenAccess W2287220281 @default.
- W2287220281 hasPrimaryLocation W22872202811 @default.
- W2287220281 hasRelatedWork W2043359489 @default.
- W2287220281 hasRelatedWork W2332767378 @default.
- W2287220281 hasRelatedWork W2365857879 @default.
- W2287220281 hasRelatedWork W2382682513 @default.
- W2287220281 hasRelatedWork W2402808450 @default.
- W2287220281 hasRelatedWork W2729223639 @default.
- W2287220281 hasRelatedWork W4213213271 @default.
- W2287220281 hasRelatedWork W4214615254 @default.
- W2287220281 hasRelatedWork W4324095408 @default.
- W2287220281 hasRelatedWork W4380357846 @default.
- W2287220281 hasVolume "51" @default.
- W2287220281 isParatext "false" @default.
- W2287220281 isRetracted "false" @default.
- W2287220281 magId "2287220281" @default.
- W2287220281 workType "article" @default.