The research location is in the Ulak Bandung area, Kaur Regency, Bengkulu Province, this area is included in the geological sheet of Manna and Enggano Sumatra. Geologically, the study area has a dominating sandstone lithology, especially in the Lemau Formation. Sandstones in the Lemau Formation are Middle Miocene – Late Miocene in transitional environments with gradual transgression phases tu…