FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4383313487> ?p ?o ?g. }

• W4383313487 abstract "Exploring the nature of Archean plate tectonics is crucial for understanding the geodynamic evolution of early Earth. While previous studies have focused on (ultra-)mafic metavolcanic and tonalite−trondhjemite−granodiorite (TTG) rocks, the crust-mantle interactions of Archean intermediate magmatism have received much less attention. Mesoarchean (ca. 2936−2855 Ma) dioritic and tonalitic-trondhjemitic magmatism occurred in the Jiaobei terrane, North China Craton. While low-silica (65.67−68.82 wt%) TTG magmatism persisted throughout the entire magmatic period, both the high-silica (69.79−74.54 wt%) TTG and biotite dioritic (MgO of 1.52−2.45 wt%) magmatism were transient (ca. 2922−2901 Ma). They were mainly sourced from metabasaltic crust, though the biotite dioritic and low-silica TTG rocks show variable mantle input. In comparison, the hornblende dioritic magmatism (MgO of 2.07−5.00 wt%) occurred later (ca. 2912−2865 Ma) and was derived from melt-metasomatized mantle sources. Spatially, the magmatism became younger from northeast to southwest. Combined with increasing crustal melting pressures after ca. 2920 Ma and mildly elevated zircon δ18O (up to +6.8‰) of TTG rocks, a Mesoarchean nascent subduction zone is proposed for the Jiaobei terrane that is featured by the recycling of supracrustal basaltic rocks to thickened lower crust (forming high-pressure and high-δ18O TTG) and subsequent melt-related mantle metasomatism (forming relatively high-Mg hornblende dioritic rocks). The recycled supracrustal materials may have lubricated the basal part of the thickened crust and then triggered the opening of a nascent mantle wedge. Further compilation of data from global Archean dioritic and TTG rocks reveals chemical discontinuities at ca. 3.6−3.5 Ga and after ca. 3.0 Ga; these periods are marked by the occurrence of both high-Mg (median MgO &gt;3 wt%) dioritic magmatism and high-(La/Yb)N (median &gt;30) and high-δ18O (median &gt;5.9‰) TTG magmatism. These data, along with independent geological evidence, suggest that the nascent subduction processes may have initiated locally at ca. 3.6−3.5 Ga but globally after ca. 3.0 Ga." @default.
• W4383313487 created "2023-07-07" @default.
• W4383313487 creator A5008920671 @default.
• W4383313487 creator A5019874020 @default.
• W4383313487 creator A5052979062 @default.
• W4383313487 creator A5059588289 @default.
• W4383313487 creator A5059615499 @default.
• W4383313487 creator A5079202638 @default.
• W4383313487 creator A5089629700 @default.
• W4383313487 date "2023-07-06" @default.
• W4383313487 modified "2023-10-03" @default.
• W4383313487 title "Initiation of Mesoarchean nascent subduction zone in the North China Craton" @default.
• W4383313487 doi "https://doi.org/10.1130/b36877.1" @default.
• W4383313487 hasPublicationYear "2023" @default.
• W4383313487 type Work @default.
• W4383313487 citedByCount "0" @default.
• W4383313487 crossrefType "journal-article" @default.
• W4383313487 hasAuthorship W4383313487A5008920671 @default.
• W4383313487 hasAuthorship W4383313487A5019874020 @default.
• W4383313487 hasAuthorship W4383313487A5052979062 @default.
• W4383313487 hasAuthorship W4383313487A5059588289 @default.
• W4383313487 hasAuthorship W4383313487A5059615499 @default.
• W4383313487 hasAuthorship W4383313487A5079202638 @default.
• W4383313487 hasAuthorship W4383313487A5089629700 @default.
• W4383313487 hasConcept C127313418 @default.
• W4383313487 hasConcept C147717901 @default.
• W4383313487 hasConcept C149347711 @default.
• W4383313487 hasConcept C150999391 @default.
• W4383313487 hasConcept C151730666 @default.
• W4383313487 hasConcept C162973429 @default.
• W4383313487 hasConcept C167284885 @default.
• W4383313487 hasConcept C17409809 @default.
• W4383313487 hasConcept C2776698055 @default.
• W4383313487 hasConcept C58097730 @default.
• W4383313487 hasConcept C5900021 @default.
• W4383313487 hasConcept C67236022 @default.
• W4383313487 hasConcept C73462661 @default.
• W4383313487 hasConcept C77928131 @default.
• W4383313487 hasConceptScore W4383313487C127313418 @default.
• W4383313487 hasConceptScore W4383313487C147717901 @default.
• W4383313487 hasConceptScore W4383313487C149347711 @default.
• W4383313487 hasConceptScore W4383313487C150999391 @default.
• W4383313487 hasConceptScore W4383313487C151730666 @default.
• W4383313487 hasConceptScore W4383313487C162973429 @default.
• W4383313487 hasConceptScore W4383313487C167284885 @default.
• W4383313487 hasConceptScore W4383313487C17409809 @default.
• W4383313487 hasConceptScore W4383313487C2776698055 @default.
• W4383313487 hasConceptScore W4383313487C58097730 @default.
• W4383313487 hasConceptScore W4383313487C5900021 @default.
• W4383313487 hasConceptScore W4383313487C67236022 @default.
• W4383313487 hasConceptScore W4383313487C73462661 @default.
• W4383313487 hasConceptScore W4383313487C77928131 @default.
• W4383313487 hasLocation W43833134871 @default.
• W4383313487 hasOpenAccess W4383313487 @default.
• W4383313487 hasPrimaryLocation W43833134871 @default.
• W4383313487 hasRelatedWork W1970258891 @default.
• W4383313487 hasRelatedWork W2146778905 @default.
• W4383313487 hasRelatedWork W2350029720 @default.
• W4383313487 hasRelatedWork W2589002275 @default.
• W4383313487 hasRelatedWork W3014955153 @default.
• W4383313487 hasRelatedWork W3186844327 @default.
• W4383313487 hasRelatedWork W4214624675 @default.
• W4383313487 hasRelatedWork W628945124 @default.
• W4383313487 hasRelatedWork W2185491845 @default.
• W4383313487 hasRelatedWork W2188970845 @default.
• W4383313487 isParatext "false" @default.
• W4383313487 isRetracted "false" @default.
• W4383313487 workType "article" @default.