Studi Lingkungan Pengendapan dan Diagenesis Batuan Berdasarkan Analisis Petrografi di Daerah Sukolilo, Pati, Jawa-Tengah

Authors

  • Wahyu Budi Kusuma PPSDM Migas
  • Kalimi PPSDM Migas

DOI:

https://doi.org/10.37525/mz/2019-1/182

Keywords:

Ngrayong Formation, Bulu Formation, petrographic, depositional environment, diagenesis

Abstract

Sandstones of Ngrayong Formation are an important reservoir in the north-east Java basin while the Bulu Formation generally functions as an aquifer in the study area. The quality of aquifers and reservoirs in the form of porosity and permeability can be influenced by the diagenesis process. This study aims to determine the depositional environment and diagenesis processes that occur in rocks of Ngrayong Formation and Bulu Formation. Sandstones as sedimentary rocks generally undergo diagenetic processes consisting of compaction, cementation, and dissolution, while carbonate rocks diagenesis processes are very varied but the most important is the process of dissolving and fracturing as forming porosity. From the results of the petrographic analysis, it can be seen that the depositional environment of the Ngrayong Formation is inner-neritic to middle-neritic while the Bulu Formation is deposited in the inner shelf environment. The diagenesis process that occurs is compaction, cementation, dissolution and micritization.

References

Choquette, P.W. & Pray, L.C., 1970, Geologic Nomenclature and Classification of Porosity in Sedimentary Carbonates. American Association of Petroleum Geologists Bulletin.

Dunham, R.J., 1962 Classification of Carbonate Rocks according to Depositional Texture. American Association of Petroleum Geologists.

Haryono, E., 2001, Nilai Hidrologis Bukit Kars, Makalah Pada Seminar Nasional Eko-Hidrolik, 28-29 Maret 2001, Jurusan Teknik Sipil, UGM.

Kadar, D., 1986, Neogene Planktonic Foraminiferal Biostratigraphy Of The South Central Java Area Indonesia, Geological Research and Development Center, Bandung, Indonesia.

Kadar, D. & Sudijono, 1993, Peta Geologi Lembar Rembang, Jawa, Pusat Penelitian dan Pengembangan Geologi, Bandung.

Koesoemadinata, R. P., 1978, Geologi Minyak dan Gas Bumi, ITB, Bandung.

Moore, C.H., 1989, Carbonate Diagenesis and Porosity, Developments in Sedimentology, Elsevier Science Publisher, Amsterdam.

Pringgoprawiro, H., 1983, Stratigrafi cekungan Jawa Timur Utara dan Paleogeografinya: sebuah pendekatam baru, Disertasi Doktor. ITB (Tidak diterbitkan).

Tipsword, H. L., Setzer, F. M., & Smith F. L. Jr., 1966, Interpretation of depositional environment in Gulf Coast petroleum exploration from paleoecology and related stratigraphy. Transaction G. C. Assoc. Geol. Soc: America

Tucker, M. E., 1991, Sedimentary Petrology: An Introduction to the Origin of Sedimentary Rocks, Blackwell Scientific Publication, Oxford, 2nd ed.

Suwarti, T., dan Wikarno, R., 1992, Peta Geologi Lembar Kudus, Jawa. Pusat Penelitian dan Pengembangan Geologi, Bandung.

van Bemmelen. R. W., 1949, The Geology of Indonesia, v. I.A. Government Printing Office.

Published

2019-05-02

How to Cite

Kusuma, W. B., & Kalimi. (2019). Studi Lingkungan Pengendapan dan Diagenesis Batuan Berdasarkan Analisis Petrografi di Daerah Sukolilo, Pati, Jawa-Tengah. Jurnal Nasional Pengelolaan Energi MigasZoom, 1(1), 6–16. https://doi.org/10.37525/mz/2019-1/182