Tectonic correlation of the Neoproterozoic and Paleozoic rocks between the western Gyeonggi block in Korea and major blocks in China: Geochronological implication

This note compares compiled detrital zircon U-Pb age data of various Neoproterozoic and Paleozoic rocks from the western Gyeonggi massif with those from the Chinese continents. The occurrences of Neoproterozoic rocks and the geochronological data from the western Gyeonggi massif can be correlated to those of the Yangtze and Cathaysia blocks associated with the amalgamation of the Neoproterozoic Rodinia supercontinent. The Early to Middle Paleozoic metaedimentary rocks and Middle to Late Paleozoic sedimentary rocks (Taean Formation) in this area are also compared with age populations from the Yangtze and Cathaysia blocks and Qilian-Qinling orogenic belt in China. However, age population in these areas are different with those from the North China blocks. As a result, the occurrences and geochronologies of the Neoproterozoic and Paleozoic rocks of the western Gyeonggi block in Korea are likely consistent with those of the South China block or the orogenic belt around the South China block in China. Especially, age populations of the Paleozoic sedimentary rocks strongly indicate that the sedimentary sequences were derived from similar peripheral clastic provenance of the South China block. Additional insitu regional-scale detailed geochronological study will be required to complete tectonic comparison between the Korean Peninsula and China.