Matches in SemOpenAlex for { <https://semopenalex.org/work/W3049157078> ?p ?o ?g. }
Showing items 1 to 92 of
92
with 100 items per page.
- W3049157078 abstract "The forearc of the southern Mariana arc preserves igneous suites formed during the initiation of subduction between the Pacific and Philippine Sea plates about 50 Ma ago. We have studied rare suites of gabbroic to tonalitic plutonic rocks dredged from two locations in the Mariana forearc by cruise by University of Hawai'i cruise KK81-06-26. Comparison of the chemical and isotopic (Sr, Nd, Pb, and Hf) characteristics of these rocks with well-studied volcanics from the forearc reveals that the plutonics from dredge RD63 and RD64 are chemically related to boninites erupted at 48–43 Ma. This is the first report of boninite-like plutonics in the southern Mariana trench. These suites have trace element characteristics consistent with island arc settings (U/Th: 0.58–1.44, Nb/La: 0.18–0.79) and other features uniquely connected with boninites: TiO2 25. RD63 plutonics resemble nearby boninite volcanics and were likely derived from differentiated boninite magma with 58% SiO2, forming gabbro by crystal accumulation, diorite and quartz diorite by crystallization, and tonalite by crystallization and/or partial melting. The RD64 suite (gabbro through tonalite) may have had a more depleted magma source and formed by accumulation and crystallization only. Although the physical dimensions of the plutonic body are unknown, the relationship with boninites indicates that felsic intrusives can form during early stages of island arc development. Such rocks could form part of midcrustal low-velocity layers detected in arc crust by seismic studies. Tonalites similar to those studied here are also found in some ophiolites." @default.
- W3049157078 created "2020-08-21" @default.
- W3049157078 creator A5018815834 @default.
- W3049157078 creator A5018870956 @default.
- W3049157078 creator A5066951263 @default.
- W3049157078 creator A5077878111 @default.
- W3049157078 creator A5088669682 @default.
- W3049157078 date "2012-12-01" @default.
- W3049157078 modified "2023-09-24" @default.
- W3049157078 title "Geochemical and Isotopic Study of a Plutonic Suite and Related Early Volcanic Sequences in the Southern Mariana Forearc" @default.
- W3049157078 hasPublicationYear "2012" @default.
- W3049157078 type Work @default.
- W3049157078 sameAs 3049157078 @default.
- W3049157078 citedByCount "0" @default.
- W3049157078 crossrefType "journal-article" @default.
- W3049157078 hasAuthorship W3049157078A5018815834 @default.
- W3049157078 hasAuthorship W3049157078A5018870956 @default.
- W3049157078 hasAuthorship W3049157078A5066951263 @default.
- W3049157078 hasAuthorship W3049157078A5077878111 @default.
- W3049157078 hasAuthorship W3049157078A5088669682 @default.
- W3049157078 hasConcept C11872896 @default.
- W3049157078 hasConcept C120806208 @default.
- W3049157078 hasConcept C127313418 @default.
- W3049157078 hasConcept C165205528 @default.
- W3049157078 hasConcept C167284885 @default.
- W3049157078 hasConcept C172660882 @default.
- W3049157078 hasConcept C17409809 @default.
- W3049157078 hasConcept C180492444 @default.
- W3049157078 hasConcept C183222429 @default.
- W3049157078 hasConcept C192241223 @default.
- W3049157078 hasConcept C193429443 @default.
- W3049157078 hasConcept C2776698055 @default.
- W3049157078 hasConcept C2778849375 @default.
- W3049157078 hasConcept C33757491 @default.
- W3049157078 hasConcept C42787717 @default.
- W3049157078 hasConcept C58097730 @default.
- W3049157078 hasConcept C5900021 @default.
- W3049157078 hasConcept C63379926 @default.
- W3049157078 hasConcept C77928131 @default.
- W3049157078 hasConcept C79572550 @default.
- W3049157078 hasConcept C79605941 @default.
- W3049157078 hasConcept C94436079 @default.
- W3049157078 hasConceptScore W3049157078C11872896 @default.
- W3049157078 hasConceptScore W3049157078C120806208 @default.
- W3049157078 hasConceptScore W3049157078C127313418 @default.
- W3049157078 hasConceptScore W3049157078C165205528 @default.
- W3049157078 hasConceptScore W3049157078C167284885 @default.
- W3049157078 hasConceptScore W3049157078C172660882 @default.
- W3049157078 hasConceptScore W3049157078C17409809 @default.
- W3049157078 hasConceptScore W3049157078C180492444 @default.
- W3049157078 hasConceptScore W3049157078C183222429 @default.
- W3049157078 hasConceptScore W3049157078C192241223 @default.
- W3049157078 hasConceptScore W3049157078C193429443 @default.
- W3049157078 hasConceptScore W3049157078C2776698055 @default.
- W3049157078 hasConceptScore W3049157078C2778849375 @default.
- W3049157078 hasConceptScore W3049157078C33757491 @default.
- W3049157078 hasConceptScore W3049157078C42787717 @default.
- W3049157078 hasConceptScore W3049157078C58097730 @default.
- W3049157078 hasConceptScore W3049157078C5900021 @default.
- W3049157078 hasConceptScore W3049157078C63379926 @default.
- W3049157078 hasConceptScore W3049157078C77928131 @default.
- W3049157078 hasConceptScore W3049157078C79572550 @default.
- W3049157078 hasConceptScore W3049157078C79605941 @default.
- W3049157078 hasConceptScore W3049157078C94436079 @default.
- W3049157078 hasLocation W30491570781 @default.
- W3049157078 hasOpenAccess W3049157078 @default.
- W3049157078 hasPrimaryLocation W30491570781 @default.
- W3049157078 hasRelatedWork W1972231621 @default.
- W3049157078 hasRelatedWork W1977181360 @default.
- W3049157078 hasRelatedWork W1994554855 @default.
- W3049157078 hasRelatedWork W2011128984 @default.
- W3049157078 hasRelatedWork W2021537650 @default.
- W3049157078 hasRelatedWork W2035595872 @default.
- W3049157078 hasRelatedWork W2036933386 @default.
- W3049157078 hasRelatedWork W2056159235 @default.
- W3049157078 hasRelatedWork W2074020034 @default.
- W3049157078 hasRelatedWork W2112836744 @default.
- W3049157078 hasRelatedWork W2127342153 @default.
- W3049157078 hasRelatedWork W2495712203 @default.
- W3049157078 hasRelatedWork W2551715547 @default.
- W3049157078 hasRelatedWork W2900471175 @default.
- W3049157078 hasRelatedWork W2904226063 @default.
- W3049157078 hasRelatedWork W3048877013 @default.
- W3049157078 hasRelatedWork W3107431221 @default.
- W3049157078 hasRelatedWork W3112425166 @default.
- W3049157078 hasRelatedWork W905739017 @default.
- W3049157078 hasRelatedWork W3127735523 @default.
- W3049157078 hasVolume "2012" @default.
- W3049157078 isParatext "false" @default.
- W3049157078 isRetracted "false" @default.
- W3049157078 magId "3049157078" @default.
- W3049157078 workType "article" @default.