ANALYSIS OF MIOCENE CARBONATES DISTRIBUTION AND FACIES DEPOSITIONAL MODEL, FAKFAK AREA, WEST PAPUA, INDONESIA

• Main Author: ADJI (NIM: 22012303), KURNIA
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/22854
• Institution: Institut Teknologi Bandung

Facies is a body of rock that characterized by a combination of lithology, physical, biological and chemical. Facies heterogeneity of limestone is high enough, so facies analysis and depositional environment need to be done due to determine the development dan facies distribution of carbonate rocks. In oil and gas industry, carbonate rocks is an important reservoir rocks. Different porosity in carbonate rocks with silisiclastic is limestone has a heterogeneous type (example moldic, vug, intraparticle) caused by diagenesis effect. While, now is still less understand <br /> <br /> <br /> about the relationship between the carbonate facies and their distribution to the number of porosity in carbonate rocks. Field data is the data that used in this study. Thin section is necessary to analyze <br /> <br /> <br /> the facies, depositional environment, age and porosity, so it would be obtained the characteristic from each facies that analyzed Foraminifera wackestone with poor porosity, foraminifera wacke-packstone with poor porosity, bioclastic packstone with good porosity and floatstone facies found in Fakfak area. From those facies, can be grouped into three facies association, <br /> <br /> <br /> fore reef bioclastic packstone, fore reef-basin foraminifera wackestone-packstone and slope deposite floatstone. Paleogeography shows that in Middle Miocene this area is outer neritic to bathyal and shallow to the north.