Matches in SemOpenAlex for { <https://semopenalex.org/work/W2039451708> ?p ?o ?g. }
Showing items 1 to 80 of
80
with 100 items per page.
- W2039451708 endingPage "783" @default.
- W2039451708 startingPage "767" @default.
- W2039451708 abstract "The 2.45 Ga Matachewan–Hearst dike swarm was emplaced over 250 000 km 2 in diverse granitoid–greenstone and metasedimentary terranes of the Superior Province of Canada. The Fe-rich tholeiitic dikes host large, uniform plagioclase megacrysts and display significant trace-element variations, e.g., (La/Sm) N = 0.62–2.23, not correlated to terrane lithologies.Fractional crystallization alone cannot produce these variations or simultaneously account for both major- and trace-element abundances. Combined periodic replenishment–fractional crystallization (RFC) in shallow magma chambers is consistent with major- and trace-element concentrations and with field evidence for periodic magma injection within the dikes. RFC cannot, however, produce the observed variation in incompatible-trace-element ratios, e.g., (La/Sm) N . Models invoking mixed mantle sources are unsuccessful at reproducing trace-element trends. Combined assimilation–fractional crystallization (AFC) models, assuming depleted parental magmas and using crustal rock data from xenoliths and from the Kapuskasing Structural Zone, can accommodate the trace-element variations, including the light-rare-earth-element enrichment and the observed relative depletions of the high-field-strength elements. The AFC process apparently took place in the lower crustal regions from where evolved magmas were periodically transported to shallow chambers dominated by RFC." @default.
- W2039451708 created "2016-06-24" @default.
- W2039451708 creator A5023123079 @default.
- W2039451708 creator A5045588156 @default.
- W2039451708 creator A5059714147 @default.
- W2039451708 date "1990-06-01" @default.
- W2039451708 modified "2023-09-25" @default.
- W2039451708 title "Open-system evolution versus source control in basaltic magmas: Matachewan–Hearst dike swarm, Superior Province, Canada" @default.
- W2039451708 doi "https://doi.org/10.1139/e90-078" @default.
- W2039451708 hasPublicationYear "1990" @default.
- W2039451708 type Work @default.
- W2039451708 sameAs 2039451708 @default.
- W2039451708 citedByCount "23" @default.
- W2039451708 countsByYear W20394517082013 @default.
- W2039451708 countsByYear W20394517082014 @default.
- W2039451708 countsByYear W20394517082015 @default.
- W2039451708 countsByYear W20394517082017 @default.
- W2039451708 countsByYear W20394517082020 @default.
- W2039451708 countsByYear W20394517082021 @default.
- W2039451708 crossrefType "journal-article" @default.
- W2039451708 hasAuthorship W2039451708A5023123079 @default.
- W2039451708 hasAuthorship W2039451708A5045588156 @default.
- W2039451708 hasAuthorship W2039451708A5059714147 @default.
- W2039451708 hasConcept C11872896 @default.
- W2039451708 hasConcept C120806208 @default.
- W2039451708 hasConcept C127313418 @default.
- W2039451708 hasConcept C150999391 @default.
- W2039451708 hasConcept C151730666 @default.
- W2039451708 hasConcept C161509811 @default.
- W2039451708 hasConcept C167236342 @default.
- W2039451708 hasConcept C17409809 @default.
- W2039451708 hasConcept C183222429 @default.
- W2039451708 hasConcept C2779181077 @default.
- W2039451708 hasConcept C2779870107 @default.
- W2039451708 hasConcept C34682378 @default.
- W2039451708 hasConcept C42796848 @default.
- W2039451708 hasConcept C67236022 @default.
- W2039451708 hasConcept C77928131 @default.
- W2039451708 hasConcept C79572550 @default.
- W2039451708 hasConcept C83893233 @default.
- W2039451708 hasConcept C83948199 @default.
- W2039451708 hasConceptScore W2039451708C11872896 @default.
- W2039451708 hasConceptScore W2039451708C120806208 @default.
- W2039451708 hasConceptScore W2039451708C127313418 @default.
- W2039451708 hasConceptScore W2039451708C150999391 @default.
- W2039451708 hasConceptScore W2039451708C151730666 @default.
- W2039451708 hasConceptScore W2039451708C161509811 @default.
- W2039451708 hasConceptScore W2039451708C167236342 @default.
- W2039451708 hasConceptScore W2039451708C17409809 @default.
- W2039451708 hasConceptScore W2039451708C183222429 @default.
- W2039451708 hasConceptScore W2039451708C2779181077 @default.
- W2039451708 hasConceptScore W2039451708C2779870107 @default.
- W2039451708 hasConceptScore W2039451708C34682378 @default.
- W2039451708 hasConceptScore W2039451708C42796848 @default.
- W2039451708 hasConceptScore W2039451708C67236022 @default.
- W2039451708 hasConceptScore W2039451708C77928131 @default.
- W2039451708 hasConceptScore W2039451708C79572550 @default.
- W2039451708 hasConceptScore W2039451708C83893233 @default.
- W2039451708 hasConceptScore W2039451708C83948199 @default.
- W2039451708 hasIssue "6" @default.
- W2039451708 hasLocation W20394517081 @default.
- W2039451708 hasOpenAccess W2039451708 @default.
- W2039451708 hasPrimaryLocation W20394517081 @default.
- W2039451708 hasRelatedWork W1518059211 @default.
- W2039451708 hasRelatedWork W1964228532 @default.
- W2039451708 hasRelatedWork W2032286539 @default.
- W2039451708 hasRelatedWork W2034561981 @default.
- W2039451708 hasRelatedWork W2039451708 @default.
- W2039451708 hasRelatedWork W2079906544 @default.
- W2039451708 hasRelatedWork W2081314164 @default.
- W2039451708 hasRelatedWork W2321118190 @default.
- W2039451708 hasRelatedWork W3192996540 @default.
- W2039451708 hasRelatedWork W2116799736 @default.
- W2039451708 hasVolume "27" @default.
- W2039451708 isParatext "false" @default.
- W2039451708 isRetracted "false" @default.
- W2039451708 magId "2039451708" @default.
- W2039451708 workType "article" @default.