The purpose of this field trip was to investigate the extent, thickness versus distance relationships, and source of a young scoriaceous air-fall deposit exposed in the vicinity of the Kamodjang geothermal field. This deposit was first noticed in October 1981, exposed along the highway through the Kamodjang area. The eruption of similar scoria in the future could endanger the village of Pangkal…
Caldera forming eruption is on of the important phenomena that caused direct huge damage of global impact not only for a short time but moreover for long periods. There have been three big caldera forming eruption in Indonesia within a period of 1000 years BP that affected global climate change, such as Rinjani (1257 AD), Tambora (1815 AD) and Krakatau (1883 AD).