A Paleozoic subduction complex in Korea: SHRIMP zircon U-Pb ages and tectonic implications

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dc.contributor.authorKim, Sung Won
dc.contributor.authorKwon, Sanghoon
dc.contributor.authorSantosh, M.
dc.contributor.authorWilliams, Ian
dc.contributor.authorYi, Keewok
dc.date.accessioned2015-12-10T23:35:09Z
dc.date.issued2011
dc.date.updated2016-02-24T08:22:12Z
dc.description.abstractThe Wolhyeonri complex in the southwestern margin of the Korean Peninsula is divided into three lithotectonic units: Late Paleozoic Zone I to the west, Middle Paleozoic Zone II in the middle and Early Paleozoic Zone III to the east. Zones II and III display characteristics of continental arc magmatic sequence. Zone II is dominated by mafic metavolcanics, whereas zone III is characterized by the presence of dismembered serpentinite bodies including chaotic mélange. These zones are proposed to have been formed in a convergent margin setting associated with subduction. Here we present zircon SHRIMP U-Pb ages from the various units within the Wolhyeonri complex which reveal the Paleozoic tectonic history of the region. The Late Carboniferous ages obtained from the main shear zone between the Wolhyeonri complex and the Paleoproterozoic Gyeonggi massif are thought to mark the timing of continental arc magmatism associated with the subduction process. In contrast, Zone I with Neoproterozoic arc magmatic remnants might indicate deposition in a forearc basin. The Wolhyeonri complex also preserves strong imprints of the Triassic collisional event, including the presence of Middle Triassic high-pressure metabasites and eclogites near the eastern boundary of the Zone III. These range of radiogenic ages derived from the Wolhyeonri complex correlate well with subduction and accretion history between the North and South China cratons. Similar geochronological features have also been indentified from the Qinling, Tongbai-Xinxian, and northern Dabie areas in east-central China. The existence of Paleozoic coeval subduction in East Asia prior to the Triassic collision is broadly consistent with a regional tectonic linkage to Gondwana.
dc.identifier.issn1342-937X
dc.identifier.urihttp://hdl.handle.net/1885/69736
dc.publisherElsevier
dc.sourceGondwana Research
dc.subjectKeywords: Collision; Korean collision belt; Qinling-Dabie-Sulu belt; Subduction; Wolhyeonri tectonic complex
dc.titleA Paleozoic subduction complex in Korea: SHRIMP zircon U-Pb ages and tectonic implications
dc.typeJournal article
local.bibliographicCitation.issue4
local.bibliographicCitation.lastpage903
local.bibliographicCitation.startpage890
local.contributor.affiliationKim, Sung Won, Korea Institute of Geoscience and Mineral Resources
local.contributor.affiliationKwon, Sanghoon, Yonsei University
local.contributor.affiliationSantosh, M., Koshi UNiversity
local.contributor.affiliationWilliams, Ian, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationYi, Keewok, Korea Basic Science Institute
local.contributor.authoremailu8104453@anu.edu.au
local.contributor.authoruidWilliams, Ian, u8104453
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.identifier.absfor040313 - Tectonics
local.identifier.absseo970104 - Expanding Knowledge in the Earth Sciences
local.identifier.ariespublicationf2965xPUB2106
local.identifier.citationvolume20
local.identifier.doi10.1016/j.gr.2011.05.004
local.identifier.scopusID2-s2.0-80052887153
local.identifier.thomsonID000295754700015
local.identifier.uidSubmittedByf2965
local.type.statusPublished Version

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