FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2001932484> ?p ?o ?g. }

• W2001932484 endingPage "346" @default.
• W2001932484 startingPage "329" @default.
• W2001932484 abstract "In order better to understand the origin and significance of across‐strike geochemical variations in the Eocene Absaroka volcanic province (AVP), this article compares compositional data for magmatic rocks from two eruptive centers that define type localities for major stratigraphic subdivisions of the Absaroka Volcanic Supergroup. Geochemical variations for evolved lavas indicate that the calc‐alkaline differentiation trend at Washburn volcano results from mixing compositionally diverse mafic and silicic magmas, whereas the shoshonitic trend at the more easternly Sunlight volcano reflects assimilation‐fractional crystallization. The mantle source for both volcanoes is, as shown by incompatible trace element contents and radiogenic isotopic ratios of mafic lavas, largely within ancient depleted lithospheric mantle later enriched by a metasomatic event characterized by low Sm/Nd and Rb/Sr ratios. The approximate timing of the enrichment event, as calculated from Nd isotopic data (2.2–2.0 Ga), is similar to estimates from other magmatic fields in the Wyoming Province. Large variations in trace element ratios of mafic lavas involving large ion lithophile elements (LILE) and light rare earth element that are not obviously reflected in isotopic ratios also indicate a recent (<100 Ma) metasomatic enrichment event. Superficially, the mantle source for Sunlight volcano appears to contain larger amounts of the young metasomatic component, as measured by high LILE/high field strength element (HFSE) ratios. Parental magmas at both volcanoes have similar HFSE contents and HFSE/heavy rare earth element ratios, however, suggesting comparable degrees of source region melting and metasomatism. Rather than variable degrees of metasomatism and partial melting, the geochemical differences between the mafic rocks are best explained by compositional heterogeneity in metasomatic fluids inherited from breakdown of different phases in hydrous peridotite. A consistent geodynamic model to account for generation of AVP magmas involves metasomatism of asthenosphere and subcontinental mantle lithosphere during shallow subduction of the Farallon plate during the Late Cretaceous through Paleocene, followed in the Eocene by foundering of the slab and primary basalt generation through major heating associated with upwelling and influx of hot asthenosphere." @default.
• W2001932484 created "2016-06-24" @default.
• W2001932484 creator A5029949285 @default.
• W2001932484 date "2003-05-01" @default.
• W2001932484 modified "2023-10-18" @default.
• W2001932484 title "Origin and Tectonic Implications of Across‐Strike Geochemical Variations in the Eocene Absaroka Volcanic Province, United States" @default.
• W2001932484 cites W1965658370 @default.
• W2001932484 cites W1973785499 @default.
• W2001932484 cites W1974600815 @default.
• W2001932484 cites W1974795382 @default.
• W2001932484 cites W1975049873 @default.
• W2001932484 cites W1980298393 @default.
• W2001932484 cites W1980637838 @default.
• W2001932484 cites W1997048572 @default.
• W2001932484 cites W2006140206 @default.
• W2001932484 cites W2006174552 @default.
• W2001932484 cites W2009269212 @default.
• W2001932484 cites W2009614001 @default.
• W2001932484 cites W2009776043 @default.
• W2001932484 cites W2014506930 @default.
• W2001932484 cites W2015503578 @default.
• W2001932484 cites W2017869658 @default.
• W2001932484 cites W2018637165 @default.
• W2001932484 cites W2018717489 @default.
• W2001932484 cites W2018953794 @default.
• W2001932484 cites W2019875441 @default.
• W2001932484 cites W2021145403 @default.
• W2001932484 cites W2037607429 @default.
• W2001932484 cites W2040548650 @default.
• W2001932484 cites W2040613156 @default.
• W2001932484 cites W2045803133 @default.
• W2001932484 cites W2047963618 @default.
• W2001932484 cites W2047965201 @default.
• W2001932484 cites W2048689831 @default.
• W2001932484 cites W2051955054 @default.
• W2001932484 cites W2054913618 @default.
• W2001932484 cites W2056232757 @default.
• W2001932484 cites W2064170118 @default.
• W2001932484 cites W2067229582 @default.
• W2001932484 cites W2068310688 @default.
• W2001932484 cites W2071631388 @default.
• W2001932484 cites W2073051003 @default.
• W2001932484 cites W2074105632 @default.
• W2001932484 cites W2084783523 @default.
• W2001932484 cites W2086757431 @default.
• W2001932484 cites W2093019874 @default.
• W2001932484 cites W2103861514 @default.
• W2001932484 cites W2104291319 @default.
• W2001932484 cites W2107282719 @default.
• W2001932484 cites W2119438235 @default.
• W2001932484 cites W2130945854 @default.
• W2001932484 cites W2137608877 @default.
• W2001932484 cites W2138848081 @default.
• W2001932484 cites W2139788788 @default.
• W2001932484 cites W2147165781 @default.
• W2001932484 cites W2161123384 @default.
• W2001932484 cites W2343488851 @default.
• W2001932484 cites W2344596156 @default.
• W2001932484 cites W2346190460 @default.
• W2001932484 cites W4205749704 @default.
• W2001932484 doi "https://doi.org/10.1086/373972" @default.
• W2001932484 hasPublicationYear "2003" @default.
• W2001932484 type Work @default.
• W2001932484 sameAs 2001932484 @default.
• W2001932484 citedByCount "47" @default.
• W2001932484 countsByYear W20019324842012 @default.
• W2001932484 countsByYear W20019324842013 @default.
• W2001932484 countsByYear W20019324842014 @default.
• W2001932484 countsByYear W20019324842015 @default.
• W2001932484 countsByYear W20019324842016 @default.
• W2001932484 countsByYear W20019324842017 @default.
• W2001932484 countsByYear W20019324842018 @default.
• W2001932484 countsByYear W20019324842019 @default.
• W2001932484 countsByYear W20019324842021 @default.
• W2001932484 countsByYear W20019324842022 @default.
• W2001932484 countsByYear W20019324842023 @default.
• W2001932484 crossrefType "journal-article" @default.
• W2001932484 hasAuthorship W2001932484A5029949285 @default.
• W2001932484 hasConcept C120806208 @default.
• W2001932484 hasConcept C127313418 @default.
• W2001932484 hasConcept C167284885 @default.
• W2001932484 hasConcept C167919410 @default.
• W2001932484 hasConcept C17409809 @default.
• W2001932484 hasConcept C2780040746 @default.
• W2001932484 hasConcept C34682378 @default.
• W2001932484 hasConcept C67236022 @default.
• W2001932484 hasConcept C79572550 @default.
• W2001932484 hasConceptScore W2001932484C120806208 @default.
• W2001932484 hasConceptScore W2001932484C127313418 @default.
• W2001932484 hasConceptScore W2001932484C167284885 @default.
• W2001932484 hasConceptScore W2001932484C167919410 @default.
• W2001932484 hasConceptScore W2001932484C17409809 @default.
• W2001932484 hasConceptScore W2001932484C2780040746 @default.
• W2001932484 hasConceptScore W2001932484C34682378 @default.
• W2001932484 hasConceptScore W2001932484C67236022 @default.
• W2001932484 hasConceptScore W2001932484C79572550 @default.
• W2001932484 hasIssue "3" @default.
• W2001932484 hasLocation W20019324841 @default.

• next