Lapangan Gunung Api Tersier Daerah Berbah Sleman - Imogiri Bantul,Yogyakarta

TL;DRAbstract

In the area of Berbah - Sleman to Imogiri - Bantul Districts, Yogyakarta Tertiary volcanic rocksform a hummocky topography. Those volcanic rocks comprise coherent lavas and volcaniclastic rocks having basalt to basaltic andesite in composition. Genetically, the rocks are pillow lavaflows, dikes. pyroclastics and resedimented (syn-eruptive) deposits. Previous workers stated that the hummocky topography was controlled by tectonic faulting. Based on volcanic geology study it is believed that the landscape is a volcanic field consisting some paleo volcanic cones. The volcanic field is distributed in NE-SW direction. Perhaps, this pattern was controlled by a subsurface fault. and then reactivated to cut the volcanic cones. Volcanic activities in this area varied from monogenetic cones, such as Watuadeg paleovolcano, developing to the Sudimoro composite volcano.

Chat with Paper

AI Agents for this Paper