It is considered that the damage of the underground structures caused by earthquakes is minor for a long time. However, the catastrophic damages induced by seve
Chemical composition, Raman microspectrometry, and Fourier transform infrared (FT-IR) and SEM-CL (Cathodluminescence) analyses are carried out for Tanzania and
A monogenetic multiple volcano was emergent on Udo island, 3 km offthe sea shore of the eastern promontory of Jeju Island, South Sea,Korea. All of the preserved