@article{oai:nagoya.repo.nii.ac.jp:00001424,
 author = {KATO, Takenori and SUZUKI, Kazuhiro and MORISHITA, Taisei and YONEZAWA, Chinatsu},
 journal = {The Journal of earth and planetary sciences, Nagoya University},
 month = {Dec},
 note = {The CHIME (chemical Th-U-total Pb isochron method) dating was carried out for zircons from pyrope-rich (Prp_<28>-Prp_<32>) garnet-bearing granitic gneiss and topaz-bearing biotite granite from the Samilpo region in the southeastern part of Democratic People's Republic of Korea. Zircons from the garnet-bearing granitic gneiss show a distinct core-rim structure ; the cores yield an early Proterozoic age of 2133±56 Ma, and the rims yield a poorly defined age of ca. 1500 Ma. The core and rim ages agree well with those for protolith formation and high-grade metamorphism, respectively, of the basement gneiss complex in the Gyeonggi Massif. Zircons from the topaz-bearing granite show a middle Jurassic age of 172±4 Ma, suggesting the granite to be assigned to the Jurassic Daebo Granite.},
 pages = {61--69},
 title = {CHIME ages of zircons in granitic gneiss and granite from Samilpo, southeastern Democratic People's Republic of Korea},
 volume = {44},
 year = {1997}
}