Mesozoic-Cenozoic Stratigraphy and Tectonic Development of the Southern Great Tarakan Basin, Northeast Borneo, Indonesia

Authors

DOI:

https://doi.org/10.17794/rgn.2022.1.11

Keywords:

Tectonic development, megasequence, inversion, transpressional, potential hydrocarbon

Abstract

We analyzed the tectonics and stratigraphy of the Southern Great Tarakan Basin to determine its tectonic evolution during the Mesozoic-Cenozoic Eras, the evolution of  basin geometry, and the potential of hydrocarbon using integrated surface and subsurface data. Southern Great Tarakan Basin can be divided into three sub-basins, Berau, Muara, and South Tarakan. They comprise deposits of Jurassic to Quaternary age, which can be assigned five mega sequences based on their lithological characteristics and tectonic development. We divide the tectonic events into four main phases; (1) contractional Jurassic-Cretaceous, (2) extensional Paleogene, (3) subsidence Early Neogene, and (4) contractional Late Neogene. The development of the strike-slip activity influenced the geometric evolution of the two sub-basins. NW-SE transpressional structures formed during the contraction phase caused most of the existing structure in Paleogene reactivated and inverted, followed by basement uplift and erosion. Consequently, the evolution of the transpressional system caused The Great Tarakan Basin to be divided into five sub-basins during the Late Miocene-Pliocene. Moreover, five horizons with hydrocarbon potential exist in the southern part of The Greater Tarakan Basin; three plays in the Berau Sub-basin, and two main plays in the Muara Sub-basin. The Late Neogene structures in the Berau Sub-basin control the accumulation, migration, and trapping mechanism, whereas these structures do not exist in Muara; hence, this sub-basin is dominated by stratigraphic traps.

Author Biographies

Benyamin Sapiie, Bandung Institute of Technology (ITB)

(Professor, Sr. structural geologist, structural geology and geomechanics) as an advisor, guided to build detail structural analysis and regional structure as well as a regional tectonic map in Berau sub-basin

Agus Men Riyanto, Research Center for Geotechnology, Indonesian Institute of Sciences (LIPI)

(B.Sc., senior researcher, geology, research administrator) as the main contributor, provided petrography and paleontology laboratory analysis and administered the research

Adi Gunawan, Pertamina Hulu Energy (PHE)

(M.Sc., Sr. exploration geologist, exploration geology and petrophysics) performed geological mapping and provided subsurface data and petroleum system analysis as well as founded fieldwork activity in Berau, Mangkalihat, and Bunyu Northeast Borneo, Indonesia

Febriana Fiona Rizky, Bandung Institute of Technology (ITB)

(B.Sc., Jr. geologist, stratigraphy) provided the result of sequence stratigraphy based on well interpretation

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Published

2022-02-01

How to Cite

Alfathony Krisnabudhi, Benyamin Sapiie, Agus Men Riyanto, Adi Gunawan, & Febriana Fiona Rizky. (2022). Mesozoic-Cenozoic Stratigraphy and Tectonic Development of the Southern Great Tarakan Basin, Northeast Borneo, Indonesia. Rudarsko-geološko-Naftni Zbornik, 37(1). https://doi.org/10.17794/rgn.2022.1.11

Issue

Vol. 37 No. 1 (2022): No. 57

Section

Geology

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