Petrological Studies of the Buddha Image Carved on Rock Surface at the Gyeongju Namsan Area, Korea - A Case Study of the Seated Buddha Image Carved on Rock Surface of Yuneulgok in Bae-ri, Gyeongju -

경주 남산 마애불 암석의 물리적 특성연구 - '경주배리윤을곡마애불좌'을 중심으로 -

The Seated Buddha image carved on rock surface of Yuneulgok in Bae-ri, Gyeongju constituted of alkali feldspar granite. There is surface weathering by abrasion, exfoliation and break out. As a result various experiment was carried out testing rock material property to quantitatively grade weathering. Besides, this study is focused on properties of rock and correlation between things. Additionally, comparison of chemical properties to nondestructive weathering grade in the buddha image carved on rock. This result utilized on important resource for scientific conservation system compared with weathering appearance.