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All Journal IJOG : Indonesian Journal on Geoscience BULLETIN OF THE MARINE GEOLOGY JURNAL PENDIDIKAN TAMBUSAI Journal of Community Based Environmental Engineering and Management INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Journal of Geoscience Engineering and Energy (JOGEE) JURNAL ABDI MASYARAKAT INDONESIA (JAMIN) Jurnal Eksakta Kebumian
Jambak, Moehammad Ali
Universitas Trisakti
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics Public Health Social Sciences Other

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Journal : BULLETIN OF THE MARINE GEOLOGY

 1 
MIOCENE PALEOGEOGRAPHIC RECONSTRUCTION IN THE SANGATTA AREA, EAST KALIMANTAN BASED ON CALCAREOUS NANNOFOSSIL BIOSTRATIGRAPHY AND BENTHONIC FORAMINIFERAL ANALYSIS Jambak, Moehammad Ali; Deny, Deny; Rendy, Rendy; Syavitri, Dewi
BULLETIN OF THE MARINE GEOLOGY Vol 39, No 2 (2024)
Publisher : Marine Geological Institute of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32693/bomg.39.2.2024.869

Abstract

The Kutai Basin is a significant hydrocarbon potential basin with up to 15 km thickness of Tertiary sediments. It is dominated by a complex deltaic system to a marine shelf environment. Thus, it is crucial to understand the facies distribution in the area. This study was carried out to assess, correlate, and reconstruct the paleoceanographic evolution of the basin using lithological and microfossil data obtained from five exploration wells. The lithostratigraphic analysis was used to identify lithological units of each well, while the calcareous nannofossils biostratigraphy was applied to estimate the age and benthic foraminifera was analysed for paleoenvironmental interpretation. The findings reveal that the study region consisted of claystone, siltstone, shale, coal, and sandstone of the Gelingseh and Kelandasan Formation. The age of these lithological units is assigned from the Middle to Late Miocene epoch (NN6-NN11), based on the presence of some nannofossil index fossils such as Catinaster coalitus, Discoaster hamatus, Discoaster quinqueramus, Discoaster calcaris, and Coronocyclus nitescens. Benthic foraminifera assemblages are primarily composed of arenaceous species such as Trochamina spp. and Haplophragmoides spp., indicating a transitional environment, though some species such as Elphidium spp. and several planktonic foraminifera species appeared, which reflect marine influence on the research area. Based on the biofacies analysis; mudflats, tidal flats, delta front, prodelta-marine shelf, and fluvial plain were formed during the Middle to Late Miocene in the studied area.
Co-Authors Adhitama, Ramadhan Amri, Muhammad Adimas Barus, Rico Budi Wijaya Budi Wijaya Cahyaningratri Prima Riyandhani Cahyaningratri Prima Ryandhani Cahyaningratri Prima Ryandhani Chaerunnisa, Maryam Christin Palit Christmas Age Putra Saragih Dalimunthe, Yusraida Khairani Deny Deny, Deny Desta, Barona Bella Dyah Ayu Setyorini Firman Herdiansyah Firman Herdiansyah, Firman Gheovany Tresna Hafiz, Surya Darma Heni Pujiastuti Jambak, Moehammad Lestari, Arini Dian Listiana Satiawati Listiana Satiawati Listiana Satiawati, Listiana Maman Djumantara Maman Djumantara, Maman Mira Meirawaty Mira Meirawaty Muhammad Burhannudinnur Oliver Enrico Zefanya Putra, Rifky Nuraza Ramadhan Adhitama Rendy Rico Barus Rifky Nuraza Putra Salam, Ilham Fikri Saragih, Christmas Age Putra Setiawan, Naiy Salsabila Suherman Dwi Nuryana Sulyana, Deska Surya Darma Hafiz Susilo, Yves Belgiaswara Syavitri, Dewi Tengku Rafiyansyah Fajri Tresna, Gheovany Wildan Tri Koesmawardani Wildan Tri Koesmawardani Yarra Sutadiwiria Yeftamikha Yeftamikha Yeftamikha Yeftamikha Yeftamikha, Yeftamikha Yuda, Himmes Putra Yusriani, Anggi Zefanya, Oliver Enrico