Early to Middle Paleozoic arc magmatism in the Korean Peninsula

Constraints from zircon geochronology and geochemistry

Sung Won Kim, Sanghoon Kwon, Seung Ik Park, Keewook Yi, M. Santosh, In Chang Ryu

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The Hongseong area of the central southwestern Korean Peninsula has been tectonically correlated to the Qinling-Dabie-Sulu collisional belt of the central China Orogenic Belt. Here we have presented geochemical and sensitive high-resolution ion microprobe (SHRIMP) U-Pb zircon data on the metaigneous rocks from the Early to Middle Paleozoic Gwangcheon gneiss, located in the middle of the Hongseong area. Our data show U-Pb ages of ca. 450. Ma for quartz-dioritic gneiss, 442. Ma for metagabbro, 409, 407 and 402. Ma for tonalitic gneiss, 440. Ma for intermediate dyke, and 401. Ma for mafic intrusive. The rocks display geochemical features suggesting magma generation within Late Ordovician (ca. 450. Ma) to Early Devonian (ca. 401. Ma) subduction-related volcanic arc and subsequent collapsing environment. The ages and geochemical characteristics presented in this study correlate well with those of the Early to Middle Paleozoic orogenic belts in the Qinling orogenic belt. Our study provides further insights into the tectonic linkage among Paleozoic to Triassic East Asian continents, with evidence for a Paleozoic Pacific-type subduction prior to the Triassic Alpine-type collision.

Original languageEnglish
Pages (from-to)866-882
Number of pages17
JournalJournal of Asian Earth Sciences
Volume113
DOIs
Publication statusPublished - 2015 Dec 1

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geochronology
magmatism
zircon
Paleozoic
geochemistry
orogenic belt
gneiss
Triassic
subduction
metaigneous rock
metagabbro
ion microprobe
island arc
dike
Ordovician
collision
magma
quartz
tectonics
rock

All Science Journal Classification (ASJC) codes

  • Geology
  • Earth-Surface Processes

Cite this

Kim, Sung Won ; Kwon, Sanghoon ; Park, Seung Ik ; Yi, Keewook ; Santosh, M. ; Ryu, In Chang. / Early to Middle Paleozoic arc magmatism in the Korean Peninsula : Constraints from zircon geochronology and geochemistry. In: Journal of Asian Earth Sciences. 2015 ; Vol. 113. pp. 866-882.
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Early to Middle Paleozoic arc magmatism in the Korean Peninsula : Constraints from zircon geochronology and geochemistry. / Kim, Sung Won; Kwon, Sanghoon; Park, Seung Ik; Yi, Keewook; Santosh, M.; Ryu, In Chang.

In: Journal of Asian Earth Sciences, Vol. 113, 01.12.2015, p. 866-882.

Research output: Contribution to journalArticle

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