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Berita Sedimentologi

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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 282 Documents

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Cyclostratigraphy and Spectral Analysis of Geophysical Logs S. Djin Nio
Berita Sedimentologi Vol 13, No 1 (2000)
Publisher : Ikatan Ahli Geologi Indonesia

Stratal patterns and stratification of sedimentary rocks are one of the most remarkable features of sedimentary rocks. Stratification patterns are formed by various periodic, which are episodic depositional processes and sometimes modified and overprinted by biological and diagenetic processes. In outcrop, stratal patterns and stratifications commonly display a certain degree of rhythmicity, representing an alternation or repetition of lithofacies units. These rhythmic and cyclic patterns occur worldwide and are observed in all depositional facies throughout geological time. Cyclostratigraphy is the study of these rhytmic and cyclic patterns in sediment successions.The concept of cyclostratigraphy has developed from a descriptive classification scheme into process-related interpretations. Furthermore, with the development of sequence stratigraphy and the improved seismic acquisition tools for the subsurface, the understanding of climate-related processes and basin dynamics is becoming more clear and is presently considered as the driving mechanism in cyclostratigraphy.This short paper discusses new cyclostratigraphic concepts derived from deterministic modelling of wireline log data.

A Report from SEAPEX Evening Talk in Bangkok: Current Understanding of Sundaland Tectonics Minarwan, Minarwan
Berita Sedimentologi Vol 25, No 1 (2012)
Publisher : Ikatan Ahli Geologi Indonesia

Sundaland, the so called "craton‟ and "stable‟ core of SE Asia, may not be a real craton after all. New granite zircon dating, seismic tomography and heat flow data from the region all point towards relatively young, hot, heterogeneously assembled and easily deformed lithosphere with only local strong crusts. Ongoing research undertaken by Prof. Robert Hall and his team in the Southeast Asia Research Group (SEARG) of Royal Holloway, University of London (UK) shows strong evidences to argue that Sundaland is not a craton and neither are its characteristics similar to well-known cratons such Wyoming (US) and Gawler (South Australia). Their findings were presented by Prof. Hall in a recent SEAPEX Evening Talk that took place on the 31st of July 2012 in Bangkok, Thailand.

Fragmen Tumbuhan dalam Endapan Sedimen Herman Darman; Yahdi Zaim
Berita Sedimentologi Vol 2, No 1 (1996)
Publisher : Ikatan Ahli Geologi Indonesia

Sisa-sisa tumbuhan yang berupa batang kayu, akar, ranting, daun atau buah banyak dijumpai dalam endapan fluviatil, delta, dan danau modern. Sisa-sisa tanaman ini ada yang bersifat insitu (tumbuh di tempat itu juga) dan ada pula yang mengalami proses sedimentasi seperti halnya mineral-mineral dalam batupasir. Proses itu antara lain adalah transportasi, pengikisan permukaan material tumbuhan yang relatif keras, pelapukan, dan pengendapan pada daerah-daerah dengan tingkat energi tertentu. Oleh karena itu sisa tumbuhan dalam batuan sedimen biasa dianggap sebagai fragmen seperti halnya mineral-mineral kuarsa, feldspar atau fragmen batuan.

Hydrocarbon Prospectivity and Petroleum System in West Sumatra Forearc Basin Perdana Rakhmana Putra; Rusalida Raguwanti
Berita Sedimentologi Vol 46, No 1 (2020)
Publisher : Ikatan Ahli Geologi Indonesia

West Sumatra forearc basin lies in the western part of Sumatra island extending from the north to the south. The forearc basin is considered not having potential to produce hydrocarbon due to its low geothermal gradient. However, indications of hydrocarbons were found in Bengkulu A-1X and Arwana-1 wells, which suggest that the Bengkulu forearc basin area has matured source rocks. The Paleogene syn-extensional sediments which are expected to be the main source rock are still under explored, especially those in the outer forearc region. Furthermore, in the Sibolga basin, the Paleogene sediments have not been well explored. Some wells were only drilled up dip of the Paleogene graben and did not penetrate the deeper Paleogene sediments. In addition, Sumatra's forearc region can also have unconventional play potential such as gas hydrate.

Inversion Technology Application for Reservoir Characterization in Indonesia F. Hasan Sidi
Berita Sedimentologi Vol 18, No 1 (2003)
Publisher : Ikatan Ahli Geologi Indonesia

Indonesia has been considered as one of the prolific oil and gas province in the world. In addition to large hydrocarbon reserves already found, including some recent giant fields, there are a wide variety of exploration opportunities awaiting for novel technology or creative minds. Appraisal/development plan is another topic since most of the fields in Indonesia are currently underdeveloped. Modern 3D seismic interpretations coupled with detailed geological understanding has been helping oil companies to improve definition of reservoir geometries and hydrocarbon distribution in several fields. However, that is not always the case since reservoirs most of the time can not be easily visualized through seismic. It will be worse in a production mode as a more detailed understanding of reservoir continuity across the field is a high priority for successful and sustained production.

Palynofacies Analysis of the Eocene Bayah Formation in Bayah High, Banten Block, SW Java Bob Yuris Chandra; A.T. Rahardjo; Dardji Noeradi
Berita Sedimentologi Vol 29, No 1 (2014)
Publisher : Ikatan Ahli Geologi Indonesia

The objective of this study is to characterize the palynofacies of the Bayah Formation from cores of wells DDH-1 (242m) and DDH-2 (315m).The wells were systematically sampled at 5m intervals. There were 47 samples from the DDH-1 and 62 samples from the DDH-2 wells. Sediment preparation was done in the Palynology Laboratory, Geological Engineering of ITB Laboratory. The examination of the processed samples was carried out with a light microscope at 400X magnification. The results of palynofacies investigation are presented in the form of palynodebris diagrams, which were then used for the basic interpretation. The palynodebris character of the Bayah Formation at DDH-1 core can be grouped into 6 palynofacies units, DDH-2 core into 7 palynofacies units. Palynofacies units 1 to 4 showed similar successions and can be correlated. The datum of the palynofacies correlation was the acme zone of Proxapertites operculatus, which is present in both wells.

The Palaeo-Kambaniru river mouth, Sumba, East Nusa Tenggara, Indonesia: A record of strongly seasonal catastrophic flow in a monsoon-controlled deltaic complex Zonneveld, John-Paul; Zaim, Yahdi; Rizal, Yan; Aswan, Aswan; Fortuin, Anne; Larick, Roy; Ciochon, Russell L.
Berita Sedimentologi Vol 47, No 3 (2021)
Publisher : Ikatan Ahli Geologi Indonesia

The Kambaniru River valley near the city of Waingapu preserves a thick succession of coarse-grained fluvial-deltaic sediment deposited during the Late Pleistocene. This succession incises through a thick uplifted coral reef terrace succession and records intervals of highly episodic flow events during the last glacial interval. The occurrence of intraclastic, coarse sand/gravel matrix olistostromes in several areas attests to the occasionally catastrophic nature of flow in the ancestral Kambaniru River. Small to moderate-sized coral-rich reefs and laterally restricted reef terraces occur on delta-front conglomerate successions at multiple horizons through the study interval. These reefs record both intervals of low flow as well as periodic river-mouth avulsion episodes. Comparison of radiometric dates obtained from pelecypod and coral material from both deltaic successions and laterally adjacent coral reef terrace intervals indicates that uplift/subsidence history of the terraces differs from that of the valley and that correlation between the two should be taken with care.

Middle Miocene Depositional Environment Shift in the Tarakan Basin: Some Perspectives from the Onshore Simenggaris Area Isnianto Saputra; Tulus Wibisono; Avesta Y. Prasetya
Berita Sedimentologi Vol 40, No 1 (2018)
Publisher : Ikatan Ahli Geologi Indonesia

This paper aims to share ideas on the stratigraphic evolution of the Tarakan Basin based on data from the Simenggaris area, onshore NE Kalimantan. Various data sets were incorporated in order to get a robust and comprehensive interpretation, including well logs, cores, and paleontology and petrography analyses. Post-stack time migration 2D seismic data were utilized to generate isopach maps, which were then used as the framework for paleogeographic models.We concluded that the stratigraphic succession in the onshore Tarakan Basin consists of two major depositional environments, with the shift occurring during Middle Miocene. The most significant marker of depositional system transition was observed in the paleontology and lithofacies association. In the Eocene-Early Miocene, the fossils were dominated by foraminifera and by low energy sediments such as shale and limestone with some tuff were also present, typical of a marine depositional system. Meanwhile, in the upper Middle Miocene to Pliocene, the fossils were dominated by pollen species and by siliciclastic sediments like sandstone, shale and coal, which were interpreted as a deltaic depositional environment.

Ulasan Singkat Buku: Sedimentary Petrology; An Introduction to the Origin of Sedimentary Rocks (2nd Edition) Berita Sedimentologi
Berita Sedimentologi Vol 5, No 1 (1997)
Publisher : Ikatan Ahli Geologi Indonesia

Author: Maurie E. TuckerPenerbit/tahun: Blackwell, 1991Keterangan: 260 halaman, sampul lunakHarga: £17

A New Insight of Talang Akar Formation in the Ridho Field, North Palembang Sub-basin, Indonesia: An Integrated Approach Togi Y. Sitinjak; Ricky A. Tampubolon; Ardian Pratama; Wildanto P. Nusantara; Aziza Muis; Harsanti Setiani
Berita Sedimentologi Vol 45, No 1 (2020)
Publisher : Ikatan Ahli Geologi Indonesia

The synrift sandstone deposits of Eo-Oligocene Lemat (LMF) and Oligo-Miocene Talang Akar Formations (TAF) are the most well -known hydrocarbon reservoirs in the South Sumatra Basin, Indonesia. However, only limited studies on TAF in the North Palembang Sub-Basin have been published. In the Ridho field, TAF is characterized by fining-up sequences of inter bedded, fine to medium-grained sandstones and shales overlain by a coal layer as the top marker, while LMF comprises of continuous blocky-shaped, medium to coarse-grained, conglomeratic sandstones.Previous lithostratigraphy-driven sand to sand correlation between wells has created difficulties in understanding the geology and in producing consistent correlation, especially within the TAF. In order to define chronostratigraphy-based correlation and interpret the depositional environment of TAF and LMF, an integration between palynological, core study and petrophysical analysis was performed. The result of this integrated approach demonstrates aligned hypotheses. The occurrence of pollen Meyeripollis naharkotensis and Florschuetzia trilobata along the studied wells suggest Late Oligocene age. The palynology study subdivides TAF into three backmangrove-intertidal sand units with an increase of marine influence defining a transgression to the top of the TAF. The transgressive event is identified in core sample by lesser tidal influx sedimentary structures such as ripple, mudlayer, flaser and also finer grained sandstone at the top of TAF. Furthermore, based on petrophysical evaluation, better sand quality with lower NTG (net -to gross) near top TAF confirms the retrogradational event in this formation.The new sand unit definitions from the current study provide more consistent correlation in terms of sand thickness and characteristics for future modeling purposes.

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Home Page

OAI Link

Editorial Team

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Contact Name Minarwan

Contact Email minarwanx@gmail.com

Phone +6281908602813

Journal Mail Official bs.fosi@gmail.com

Editorial Address Forum Sedimentologiwan Indonesia (FOSI) Komisi Sedimentologi Ikatan Ahli Geologi Indonesia (IAGI) Jl. Ciledug Raya Kav. 109 Cipulir, Kebayoran Lama, Jakarta Selatan, Indonesia

Location Kota adm. jakarta selatan, Dki jakarta INDONESIA

Abstract

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Contact Name
Minarwan

Contact Email
minarwanx@gmail.com

Phone
+6281908602813

Journal Mail Official
bs.fosi@gmail.com

Editorial Address
Forum Sedimentologiwan Indonesia (FOSI) Komisi Sedimentologi Ikatan Ahli Geologi Indonesia (IAGI) Jl. Ciledug Raya Kav. 109 Cipulir, Kebayoran Lama, Jakarta Selatan, Indonesia

Location
Kota adm. jakarta selatan,

Dki jakarta

INDONESIA