DEPOSITIONAL ENVIROMENT CARBONATES SANDSTONE UNIT OF THE NYALINDUNG FORMATION BASED ON OUTCROP DATA

Yusi Firmansyah, Reza Mohammad Ganjar Gani, Kurnia Arfiansyah Fachrudin

Abstract


The research area is located in Loji Village, Simpenan District, Sukabumi Regency, West Java Province. The research was conducted by geological mapping method. The determination of the carbonaceous rocks precipitation environment based on the characteristics of lithology and fossil analysis. Based on the characteristics of lithology, this unit consists of carbonate sandstones. In megaskopis unit of this Carbonate Sandstone has physical characteristics, brown, medium grain sand size - very fine sand, circular round, open pack - closed, good sorting and bad permeability. The results of fossil foraminifera bentonic and plantonic analysis show that the bathymetry zone is at the outer center of neritik So it can be predicted that the deposition environment of this unit is in shallow sea.


Keywords : lithologic characteristics, bentonic foraminifera, depositional environment


References


Bemmelen, R. W. Van., 1949. The Geology of Indonesia, col. I A : General Geology of Indonesia and Adjacement Archipelago. Martinus Nijhoff. The Hague.

Bronto,S.,2006.Fasies Gunung Api dan Aplikasinya.,Jurnal Geologi Indonesia, Vol. 1 No. 2 : 59-71.

Clements, B. & Hall, R. 2007.Cretaceous to Late Miocene stratigraphic and tectonic evolution of West Java, Indonesian Petroleum Association, Proceedings 31st Annual Convention.

Sukamto. 1975. Peta Geologi Lembar Bogor skala 1:100.000. Bandung: Pusat Penelitian dan Pengem-bangan Geologi.

Sukamto.1975. Peta Geologi Lembar Jampang dan Balekembang skala 1:100.000. Bandung: Pusat Penelitian dan Pengem-bangan Geologi.

Komisi Sandi Stratigrafi Indonesia, 1996. Sandi Stratigrafi Indonesia. Ikatan Ahli Geologi Indonesia, 14 h.

Martodjojo, S., 1984. Evolusi Cekungan Bogor Jawa Barat. Disertasi Doktor Geologi, Fakultas Pasca Sarjana, Institut Teknologi Bandung. Tidak diterbitkan.

Phleger, Fred dan Parker L. Frances, 1951. Foraminifera Species, Part II, Scripps Institution of Oceanography, La Jolla, California.

Postuma, J.A., 1971. Manual of Planktonik Foraminifera, Elsevier Publishing Company, Amsterdam-London-New York




DOI: https://doi.org/10.24198/gsag.v2i3.15754

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