Matches in SemOpenAlex for { <https://semopenalex.org/work/W2330411073> ?p ?o ?g. }
Showing items 1 to 91 of
91
with 100 items per page.
- W2330411073 endingPage "1031" @default.
- W2330411073 startingPage "1017" @default.
- W2330411073 abstract "The equilibrium 3FeAl2O4 + 3Al2SiO3 = 5 Al2O3 (1) has been calibrated in the piston-cylinder apparatus. Experiments were carried out using well-calibrated NaCl furnace assemblies and Ag80Pd20 capsules with oxygen fugacity buffered at or near iron–wüstite. The equilibrium is located at less than 7·2 kb at 85O°C and between 8·0 and 8·2, 10·0 and 10·5, and 12·0 and 12·2 kb at 900, 1000, and 1100°C, respectively. Experiments have also been conducted to determine the effect of gahnite (ZnAl2O4) component in spinel on equilibrium (1). Graphite capsules were used with oxygen fugacity buffered at or near graphite-CO-CO2. The addition of zinc displaces the reaction to higher pressures. For hercyniteg86-gahnite14, the equilibrium is located between 9·4 and 9·6 and 12·7 and 13·0kb at 900 and 1050°C, respectively. For hercynite70-gahnite30, the equilibrium is located between 10·8 and 11·0 and 15·4 and 15·6 kb at 900 and 1050°C, respectively. The results indicate that hercynite-gahnite solutions are somewhat non-ideal (WG = +6·54 kJ/mol at 900°Q assuming a symmetric regular solution model. A thermobarometer based on equilibrium (1) is applicable in high-grade metapelitic rocks. Pressure/temperature estimates using this equilibrium agree with other well-calibrated thermometers and barometers. Failure of equilibrium (1) to intersect the equilibrium 3 FeAl2O4 + 5 SiO2 = Fe3Al2Si3O12 + 2 Al2SiO5 (2) indicates that the equilibrium corundum + quartz = sillimanite is metastable at all pressures and temperatures. This implies that co-occurrences of corundum and quartz in granulites are metastable." @default.
- W2330411073 created "2016-06-24" @default.
- W2330411073 creator A5058359455 @default.
- W2330411073 creator A5064788901 @default.
- W2330411073 date "1989-08-01" @default.
- W2330411073 modified "2023-09-26" @default.
- W2330411073 title "The Stability of Hercynite and Hercynite-Gahnite Spinels in Corundum- or Quartz-Bearing Assemblages" @default.
- W2330411073 doi "https://doi.org/10.1093/petrology/30.4.1017" @default.
- W2330411073 hasPublicationYear "1989" @default.
- W2330411073 type Work @default.
- W2330411073 sameAs 2330411073 @default.
- W2330411073 citedByCount "73" @default.
- W2330411073 countsByYear W23304110732013 @default.
- W2330411073 countsByYear W23304110732014 @default.
- W2330411073 countsByYear W23304110732015 @default.
- W2330411073 countsByYear W23304110732016 @default.
- W2330411073 countsByYear W23304110732017 @default.
- W2330411073 countsByYear W23304110732018 @default.
- W2330411073 countsByYear W23304110732019 @default.
- W2330411073 countsByYear W23304110732020 @default.
- W2330411073 countsByYear W23304110732021 @default.
- W2330411073 countsByYear W23304110732022 @default.
- W2330411073 countsByYear W23304110732023 @default.
- W2330411073 crossrefType "journal-article" @default.
- W2330411073 hasAuthorship W2330411073A5058359455 @default.
- W2330411073 hasAuthorship W2330411073A5064788901 @default.
- W2330411073 hasConcept C113196181 @default.
- W2330411073 hasConcept C121332964 @default.
- W2330411073 hasConcept C127313418 @default.
- W2330411073 hasConcept C131157278 @default.
- W2330411073 hasConcept C17409809 @default.
- W2330411073 hasConcept C178790620 @default.
- W2330411073 hasConcept C185592680 @default.
- W2330411073 hasConcept C191897082 @default.
- W2330411073 hasConcept C192562407 @default.
- W2330411073 hasConcept C199289684 @default.
- W2330411073 hasConcept C2776230739 @default.
- W2330411073 hasConcept C2777519835 @default.
- W2330411073 hasConcept C2779131772 @default.
- W2330411073 hasConcept C2779193389 @default.
- W2330411073 hasConcept C2779698641 @default.
- W2330411073 hasConcept C2779870107 @default.
- W2330411073 hasConcept C43617362 @default.
- W2330411073 hasConcept C67236022 @default.
- W2330411073 hasConcept C85084404 @default.
- W2330411073 hasConcept C89464430 @default.
- W2330411073 hasConcept C93746451 @default.
- W2330411073 hasConcept C97355855 @default.
- W2330411073 hasConceptScore W2330411073C113196181 @default.
- W2330411073 hasConceptScore W2330411073C121332964 @default.
- W2330411073 hasConceptScore W2330411073C127313418 @default.
- W2330411073 hasConceptScore W2330411073C131157278 @default.
- W2330411073 hasConceptScore W2330411073C17409809 @default.
- W2330411073 hasConceptScore W2330411073C178790620 @default.
- W2330411073 hasConceptScore W2330411073C185592680 @default.
- W2330411073 hasConceptScore W2330411073C191897082 @default.
- W2330411073 hasConceptScore W2330411073C192562407 @default.
- W2330411073 hasConceptScore W2330411073C199289684 @default.
- W2330411073 hasConceptScore W2330411073C2776230739 @default.
- W2330411073 hasConceptScore W2330411073C2777519835 @default.
- W2330411073 hasConceptScore W2330411073C2779131772 @default.
- W2330411073 hasConceptScore W2330411073C2779193389 @default.
- W2330411073 hasConceptScore W2330411073C2779698641 @default.
- W2330411073 hasConceptScore W2330411073C2779870107 @default.
- W2330411073 hasConceptScore W2330411073C43617362 @default.
- W2330411073 hasConceptScore W2330411073C67236022 @default.
- W2330411073 hasConceptScore W2330411073C85084404 @default.
- W2330411073 hasConceptScore W2330411073C89464430 @default.
- W2330411073 hasConceptScore W2330411073C93746451 @default.
- W2330411073 hasConceptScore W2330411073C97355855 @default.
- W2330411073 hasIssue "4" @default.
- W2330411073 hasLocation W23304110731 @default.
- W2330411073 hasOpenAccess W2330411073 @default.
- W2330411073 hasPrimaryLocation W23304110731 @default.
- W2330411073 hasRelatedWork W1971969221 @default.
- W2330411073 hasRelatedWork W1974719815 @default.
- W2330411073 hasRelatedWork W2028795489 @default.
- W2330411073 hasRelatedWork W2058524444 @default.
- W2330411073 hasRelatedWork W2071123829 @default.
- W2330411073 hasRelatedWork W2102750719 @default.
- W2330411073 hasRelatedWork W2143012196 @default.
- W2330411073 hasRelatedWork W2318056404 @default.
- W2330411073 hasRelatedWork W2325820002 @default.
- W2330411073 hasRelatedWork W2330411073 @default.
- W2330411073 hasVolume "30" @default.
- W2330411073 isParatext "false" @default.
- W2330411073 isRetracted "false" @default.
- W2330411073 magId "2330411073" @default.
- W2330411073 workType "article" @default.