Facies distribution and limestone depositional history in Gunung Endut geothermal prospect area, Banten Province

Abstract

Abstract Gunung Endut, located in Banten Province, has geothermal pr ospect area in its mountain slope. Some of the area of Gunung Endut has limestone facies which commonly deposited in marine environment. Based on the regional geological map of Leuwidamar, limestone facies are the member of Bojongmanik Formation within the Bogor Physiographic Zone. In Gunung Endut, limestone was developed during the pre-volcanic period, meanwhile most of limestone in Java are found as outcrop in Southern Mountains Zone formed during the post-volcanic period. This study focused on macroscopic and microscopic identification of limestone in order to determine the distribution of facies and the history of limestone sedimentation in the area of Gunung Endut. The macroscopic and microscopic feature of the rock samples are analyzed and classified using modified Dunham classification by Embry-Klovan. The result of the analyses will provide information about the limestone facies distribution and geological history with better detail in the study area than previously known.