Archeomagnetism of the Pottery of Koryo Celadon, the Historic site No. 68

사적(史蹟)68호(號) 고려청자도요지(高麗靑瓷陶窯址)의 고고지자기(考古地磁氣)

Recently, excavation of ancient pottery kiln of Koryo celadon of the Koryo dynasty have been continued since 1979 in Hang-dong, Daegu-myun, Gangjin-gun, Jeonnam Province, south-western part of Korea. The authers carried out an archeomagnetic study using the baked earth of the floors of the kiln, togimi and fabrics of rocks which were placed firmly on the floors of the kiln. These specimens were measured using the astatic magnetometer. The results of measurements are: declination, $0.3^{\circ}W$; inclination, $52.9^{\circ}C$. Referring to the secular change curves drawn from the studies of the south-western Japan, the last period when the pottery kiln was fired finally is estimated to be around A.D. 1170. Many potsherds of Koryo celadon were excavated around the kiln. According to the shape of these potsherds, the age of the pottery kiln is estimated to be 10-12 C, which is consisted with this study.