Geology and depositional environment of sambipitu formation in Beji Area, Yogyakarta

The research is to study the distinct characteristic of the depositional environment of Sambipitu formation. This because the different environment carried distinct features. The previous study on Sambipitu only on regional mapping and to discovering new geology feature in the study area. In addition, the various interpretation of Sambipitu depositional environment in the previous study. This study should provide a geological map on a scale of 1:25000 and determine the depositional environment of Sambipitu formation. This research will apply the facies analysis, petrography and fossil identification. Furthermore, the mapping process for making a geological map. Sambipitu formation’s lithology unit that composed by different facies that influence to vary of determination about it depositional environment. By determining the depositional environment, it leads to better understanding of the Sambipitu formation where the deposition is influenced by many factors like volcanism and carbonate evolved. Hence, this research exposed the characteristic on different facies where these facies carried distinct feature. In short, the Sambipitu formation where deposited at the shallow marine to shelf or slope. In addition, the influence from the transgression and progression of sea level.