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Berita Sedimentologi
Published by Forum Sedimentologiwan Indonesia
ISSN : 08539413     EISSN : 2807274X     DOI : https://doi.org/10.51835/bsed
Core Subject : Science,
Earth & Planetary Sciences
BERITA SEDIMENTOLOGI aims to disseminate knowledge on the field of sedimentary geology to its readers. The journal welcomes contributions in the form of original research articles, review articles, short communications and discussions and replies. Occasionally, Berita Sedimentologi also includes field trip reports and book reviews, which are published only after going through peer-review processes. The main geographical areas of interest are Indonesia and SE Asia, however contribution from the rest of the world is also welcome. Berita Sedimentologi covers broad topics within sedimentary geology, particularly on depositional processes and their records in the rocks, petrology, sedimentology and stratigraphy of both siliciclastic and carbonate rocks; sequence stratigraphy, paleontology, biostratigraphy and sedimentary geochemistry. The journal also accepts articles on interdisciplinary research in sedimentary basin analysis, including large-scale basin geodynamics processes, mechanism of sedimentary basin formation, earth surface processes, sediment routing systems, petroleum geoscience and applied sedimentary geology analysis for mining and engineering geology.
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Geologi
Articles 6 Documents
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Search results for , issue "Vol 42, No 1 (2019)" : 6 Documents clear
Coaly Petroleum Source Rocks in Malaysia - Is the Present the Key to the Past? Kim-Kiat Liaw
Berita Sedimentologi Vol 42, No 1 (2019)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5898.571 KB) | DOI: 10.51835/bsed.2019.42.1.73

Abstract

Malaysia’s three oil-producing regions are: (1) Malay Basin, (2) Sarawak Basin, (3) Sabah Basin. Though, basin evolutions differ somewhat, the petroleum systems remain broadly similar. Other than Central Luconia, which is distinctively a carbonate gas province, the other provinces are characterised by accumulations of oil and gas found within Neogene clastic reservoirs. HC charge was derived principally from a Type III coaly source rock (SR) e.g., (i) in-situ pure coal and/or impure shaly coal, (ii) transported coaly clasts/fragments in channel lag deposits, (iii) finely-dispersed detritus, and also, commonly as coaly laminae/bands, mostly in marine deposits.
Reservoir Potential of Neogene Rocks in the Biak Island and Its Surrounding Areas Alviyanda Alviyanda; G.M. Lucki Junursyah; Rahmat Saragih
Berita Sedimentologi Vol 42, No 1 (2019)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5246.355 KB) | DOI: 10.51835/bsed.2019.42.1.74

Abstract

Biak Basin is located offshore to the immediate west and southwest of Biak Island. The basin contains up to 7,000m thick of sediments, which may be thermally mature to generate hydrocarbon if source rocks are present. The stratigraphy of the Biak Basin is generally dominated by carbonate sequences of Early to Late Neogene. The basin was drowned during the Oligocene, which could have led to source rock accumulation during this period. Then, carbonate platform facies were deposited massively above and can be of potential reservoir. The Neogene carbonates consist of two depositional sequences, namely Early Neogene sequence that contains Wainukendi, Wafordori, and Napisendi Formations; and Late Neogene sequence that contains Korem and Wardo Formations. A Late Miocene unconformity separates the two carbonate sequences.Reservoir rock potential of the Neogene carbonates has been evaluated by using quantitative parameters. Based on the evaluation, grainstone interbedded crystal limestone from the Napisendi Fm members has porosity ranging from 8.84% – 29.5% which can be categorized as good to special. Porosity types of the rock vary from intercrystalline, intracrystalline, and fracturing to vuggy. Secondary porosity occurred due to diagenetic rocks processes such as compacting, cementing, dissolution and dolomitization.
Obituary: Prof. S. George Pemberton, Ph.D., P.Geol., F.R.S.C. Berita Sedimentologi
Berita Sedimentologi Vol 42, No 1 (2019)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (802.851 KB) | DOI: 10.51835/bsed.2019.42.1.75

Abstract

On August 4, 2018, the geological community mourned the passing of Prof. Stuart George Pemberton. Professor Pemberton was most well-known for his remarkable contributions in ichnology that brought Canada to host the world-leading ichnological community. He received a BSc (Honours) in Geology at Queen’s University in Kingston, Ontario (1972) and a MSc (1976) and Ph.D. (1979) in Geology at McMaster University in Hamilton, Ontario.
Report on the Geological Field Trip to Mahakam Delta and Balikpapan Bay (August 31st to September 4th, 2018), Organized by FOSI-IAS-SEPM as Part of Regional Seminar: Past & Present Sedimentation in Tropical Region Tri Handayani
Berita Sedimentologi Vol 42, No 1 (2019)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3543.165 KB) | DOI: 10.51835/bsed.2019.42.1.76

Abstract

The Mahakam Delta and Balikpapan Bay Field Trip was held on August 31st to September 4th, 2018 and lead by Dr. Erlangga Septama (G and G Advisor for Pertamina EP asset 5 at that time). Pertamina EP Asset 5 has carried out several fieldworks in the Mahakam Delta, Balikpapan Bay and surrounding area since 2013 to improve the understanding of subsurface reservoir geometry, internal architecture and potential sand connectivity in a less constrained style (e.g. surface outcrop vs. core or wireline log data). The study, as also our field trip; aimed to characterize the facies and stratigraphy of the deltaic sequence from outcrops and correlates them to the subsurface data in Sangasanga Field. This field based study is required to fill the knowledge gap due to the scarcity of the subsurface data in the existing oilfields.
How Did Channel Systems Survive High Sea Level Periods? New Sedimentological Insights from Outcrop, Modern Analogue and Subsurface Data in the Lower Kutai Basin, E. Kalimantan Erlangga Septama; Pambudi Suseno; Chandra Mustopa EP; Gilang Nuansa; Febri Iswanto; Rizky Andi
Berita Sedimentologi Vol 42, No 1 (2019)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (8933.314 KB) | DOI: 10.51835/bsed.2019.42.1.72

Abstract

It is generally assumed that fluvial depositions reached their peak in low sea level conditions and that high sea levels were generally considered as a period of neglected breaks in sedimentation and thus were ordinarily interpreted to be associated with an abandonment phase. In contrast, our recent findings from outcrop and subsurface data in the Lower Kutai Basin, East Kalimantan has revealed a complex response in the channel-fill development stages within relatively high sea level periods (either authigenic or allogenic factors). Evidence has shown that some channels certainly “survived” the abandonment period.A three km detailed transect was measured through several road cuts and coal mines in the Samarinda Anticlinorium area. The well log, FMI, pressure analysis and core petrographic analyses permit an assessment of the subsurface pattern. The integrated biostratigraphy data (foraminifera, nanno-plankton and palynology) are used to synthesize the regional marker. This study also benefitted from unmanned aerial vehicle (UAV) mapping, which created a high resolution (1-3 cm precision) 3D digital outcrop model (DOM). To complete the final perspective view, the recent channel deposits in the Mahakam Delta and Balikpapan bay are also used as a comparative model. These entire measurements and intensive amount of information are synthesized into the integrated geological model.We identify three typical depositional models of highstand channels due to their specific responses at the channel upper boundary, namely: i) drowned fluvial channel, ii) backfilled/keep-up channel and iii) fluvial channel to shoreface rejuvenation. This study also reveals new insights about the sedimentary processes and facies geometries in the Lower Kutai basin. This unique phenomenon was affected by (a) a large tidal prism area that covers the entire delta systems and (b) a short (40-45 km.) fluvial to shelf sedimentation conduits, combined with (c) relatively high sedimentation fluxes. This type of sand has been long overlooked and currently become recognized as a new bypassed oil reservoir. This new insight is noteworthy toward the re-assessment of the geological model.
Seminar Report FOSI-IAS-SEPM Regional Seminar: Past and Present Sedimentation in Tropical Region Barry Majeed Hartono; Ahmad Najili
Berita Sedimentologi Vol 42, No 1 (2019)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3093.127 KB) | DOI: 10.51835/bsed.2019.42.1.77

Abstract

Tropical sedimentations are unique. The “unique” term that given for tropical sedimentation is because that this sedimentation is affected by climates, vegetation, and high rate of weathering. The understanding of recent and modern tropical sedimentation can be used to study the sedimentation happened in the past. So studies about tropical sedimentation hopefully could help and improve the understanding of oil and gas exploration or coal exploration.FOSI 3rd Regional Seminar was held first September in Grha Sabha Pramana (UGM Conference Centre) Yogyakarta, Indonesia. Indonesian Sedimentologist Forum (FOSI) together with International Sedimentologist Association (IAS) and Society of Sedimentary Geology (SEPM) organized the joint Seminar. This Seminar was held also as a follow up from lecture (FOSI special meeting) in 2016 that was given by Prof. Poppe de Boer (Utrecht University) and Ir. Herman Darman (FOSI) in Gadjah Mada University (UGM).

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