SHRIMP zircon age of a Proterozoic rapakivi granite batholith in the Gyeonggi massif (South Korea) and its geological implications

Mingguo Zhai, Zhiyao Ni, Chang Whan Oh, Jinghui Guo, Seon Gyu Choi

    Research output: Contribution to journalArticlepeer-review

    47 Citations (Scopus)

    Abstract

    A large rapakivi granite batholith in the Neo-Archaean/Palaeoproterozoic Odesan complex, northeastern Gyeonggi massif, South Korea, has been dated at 1839 ± 10 Ma using SHRIMP U-Pb analysis of zircons. The age, petrological and geochemical characteristics of this batholith are similar to those of the rapakivi granite batholiths exposed in the Rangnim massif of North Korea and in the Miyun-Chengde complex of North China. The country rocks of these rapakivi granite batholiths are also comparable; all are composed of granitic gneisses and banded iron formation (BIF)-bearing supracrustal rocks metamorphosed to amphibolite- to granulite-facies. This study provides new evidence for the suggestion that the Gyeonggi and Rangnim massifs may share an affinity with the Precambrian basement of the North China craton. The study provides new insight into the possible eastward extension of the Sulu orogenic belt in the Korean peninsula and further provides evidence to correlate the Korea basement to a possible global 2.1-1.8 Ga supercontinent.

    Original languageEnglish
    Pages (from-to)23-30
    Number of pages8
    JournalGeological Magazine
    Volume142
    Issue number1
    DOIs
    Publication statusPublished - 2005 Jan

    Keywords

    • Granite
    • Rapakivi
    • SHRIMP data
    • South Korea
    • Zircon

    ASJC Scopus subject areas

    • Geology

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