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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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A Field Trip to the Syn-Rift Petroleum System of Central Sumatera Andrew Carnell; Chris Atkinson; Peter Butterworth
Berita Sedimentologi Vol 27, No 1 (2013)
Publisher : Ikatan Ahli Geologi Indonesia

In September 2012, a field trip was run by the authors above into the Ombilin Basin of West Sumatra province to examine outcrop analogs of the syn-rift petroleum system of Central Sumatra. This was organized by SEAPEX and AAPG as part of the AAPG International Conference held in Singapore. The field trip started and finished in Padang but was conducted in the Barisan mountains amidst the stunning scenery of West Sumatra.Rift basin evolution is a key component of the petroleum systems of many Southeast Asian basins (e.g. South Sumatra Basin, Sunda Basin). Syn-rift lacustrine mudstones are prolific oil prone source rocks and syn-rift and early post-rift clastics sediments can provide excellent reservoir intervals. Rift petroleum systems are, however, geologically complex and hydrocarbon exploration within them requires a greater knowledge of the structures and sedimentological evolution of the basin than is often the case elsewhere. Local factors such as provenance and rift related tectonic activity can have a significant impact on the quality, quantity and distribution of source, reservoir and seal.The field trip was conducted over four days with each day concentrating on a separate aspect of the petroleum system as follows:Day 1 Basement and Regional Geology (SYN-RIFT)Day 2 Source Rock (SYN-RIFT)Day 3 Reservoirs (EARLY POST-RIFT)Day 4 Syn-rift Reservoirs (SYN-RIFT)

Modern Fluvio-Lacustrine System of Lake Singkarak, West Sumatra and Its Application as An Analogue for Upper Red Bed Fm. in the Central Sumatra Basin Enry Horas Sihombing; Nadya Oetary; Iqbal Fardiansyah; Reybi Waren; Endo Finaldhi; Faizil Fitris; Habash Semimbar; Satia Graha; Abdullah F. Talib; Willy R. Paksi
Berita Sedimentologi Vol 36, No 1 (2016)
Publisher : Ikatan Ahli Geologi Indonesia

Paleogene synrift fluvio-lacustrine rocks in western Indonesian basins are viable and prolific petroleum plays. However, due to active tectonics and confined environment, reservoir distribution and geometry of these Paleogene rocks are highly complex. In order to better understand and identify stratigraphic relationships and facies geometries in Paleogene synrift reservoirs, a field study on analogous modern alluvial-fan and axial-fluvial deltas in Lake Singkarak has been performed by investigating data from various elements of the depositional system. The results of this study illustrate how an integration of grain texture, faunal analysis, depositional facies, and stratigraphic stacking patterns in a modern depositional environment can characterize the complexity of reservoir geometry, reservoir quality and their distribution, both laterally and vertically.This study focuses on modern sediment of Sumpur axial-fluvial delta and Malalo alluvial fan delta in the northern part of Lake Singkarak, West Sumatra Province. Seven depositional facies were recognized in the Sumpur axial-fluvial delta including fluvial, upper and lower distributary channel, subaqueous distributary channel, mouth bar, shoreline, and abandoned delta. From a sand quality and facies geometry perspective, the lower distributary channel, subaqueous distributary channel and mouth bar facies are associated with the most favourable reservoir potential. The Malalo alluvial-fan delta can be subdivided into four depositional facies including upper, middle, lower, and subaqueous fan facies. The highest reservoir quality exists in the lower and subaqueous fan facies. These two deltaic systems exhibit that the highest quality reservoirs occur in the more distal setting and their distribution in the axial-fluvial delta is more regionally extensive than it is in the alluvial fan delta.The model from Lake Singkarak was then compared to Paleogene reservoirs in “NAT” Field, Central Sumatra Basin. The field produced hydrocarbons from synrift deposits within Upper Pematang Group. The comparison was done with an objective to use Lake Singkarak as the analog depositional model for the Upper Pematang Group.

Comparison of Paleo-Mahakam Delta with Other Delta Systems F. Hasan Sidi
Berita Sedimentologi Vol 12, No 1 (1999)
Publisher : Ikatan Ahli Geologi Indonesia

The Middle to Upper Miocene delta system in Kutai Basin is compared with several published delta models in this article. The modern day Mississippi has been taken to represent fluvial-dominated deltas, Colorado delta in the Gulf of California for tide-dominated delta, and the Rhone delta for the wave-influenced comparison.

Seismic Expression of the Timor-Tanimbar, Eastern Indonesia Darman, Herman
Berita Sedimentologi Vol 24, No 1 (2012)
Publisher : Ikatan Ahli Geologi Indonesia

The Timor-Tanimbar Trough is an oceanic trough, which is an eastern continuation of the Sunda Trench. It marks the boundary between Indo-Australian Plate's continental shelf and the Timor Plate in the north. The trough is located in the south of Timor Island and is called the Timor Trough with WSW to ENE orientation. Further east, the trough orientation changes to SW-NE and is called Tanimbar Trough.A number of seismic lines across Timor-Tanimbar Trough have recently been published by different authors in several publications. Five of those seismic lines which provided regional geological understanding of the southern part of Banda arc, are discussed in this paper. These seismic lines provide a better geological understanding of the area after Hamilton published regional seismic lines in 1979. In this paper, consistent stratigraphic nomenclature has been applied to these key seismic lines. This will help to understand the regional geological process in chronological order.From west to east, the coverage of the sections published in this article are as follow:Section 1: West part of Timor trough, published by Jones et al (2011);Section 2: East part of Timor trough to Australian Platform, published by Lee and Bawden (2011);Section 3: A regional older section, which provides a regional understanding of the tectonic in the area, is published by Hamilton (1979);Section 4: South of the Tanimbar trough, published by Carter at al. (2003);Section 5: A regional section across the northern part of Tanimbar trough published by Dinkelman et al. (2010), with details which is published by Roberts et al (2011).This article discusses the observations of these seismic lines, but the alternative interpretations are quite limited, for the lack of access to the original data. Seismic-to-well tie is not explained in the source of these seismic sections, and it will not be discussed in this paper.

Undiscovered Potential in the Basement Exploring in Sumatra for oil and gas in naturally fractured and weathered basement reservoirs Tako Koning; Nick Cameron; John Clure
Berita Sedimentologi Vol 47, No 2 (2021)
Publisher : Ikatan Ahli Geologi Indonesia

This paper was first published in GEOExPro magazine, Vol. 18, No. 1, 2021, both in print and electronically (Koning et al., 2021) and is republished with permission from GEOExPro. For Berita Sedimentologi we have made various changes to the existing text and figures by including further results from our ongoing in-depth research into the geology of basement oil and gas plays in Sumatra.This paper provides and up-to-date and in-depth review of the status of exploration for oil and gas in naturally fractured and weathered basement throughout Sumatra. Also reviewed is the status of oil and gas production from Sumatra’s basement fields. In this paper’s section on Economic Impact, we emphasize the major positive contribution to Indonesia’s economy resulting from gas produced from basement reservoirs in the South Sumatra Basin.

Sedimentary Facies of the Upper Part of Tapak Formation in Banyumas Area, Central Java Ricky Andrian Tampubolon; Yan Rizal
Berita Sedimentologi Vol 44, No 1 (2019)
Publisher : Ikatan Ahli Geologi Indonesia

The upper part of Tapak Formation in Kali Cimande of Banyumas area shows a good example of tidal flat succession. The interval consists of alternating sandstones, siltstone and mudstone that show a fining and thinning upward bedding pattern and includes sand flat, mixed flat and mud flat sedimentary facies. The sand flat facies is characterized by medium-grained sandstone, moderately sorted, with cross-lamination sedimentary structures and bioturbation trace fossils (Skolithos) found mostly on the top of sandstone layer. The mixed flat facies is characterized by an alternation of thin layered sandstones with mudstone and siltstone, with lenticular, wavy, and flaser sedimentary structures. This facies contains many forms of bioturbations, such as Planolites, Thallasinoides, Lockeia, and Ophiomorpha. The mud flat facies is characterized by repeated claystone and thin sandstone intercalation, where the ratio of clay content being more than 95 % of the total layers, and contains abundant Lockeia trace fossil. The Upper Tapak Formation in Banyumas basin has moderate reservoir potential.

Late Triassic Metatonalite from the Schwaner Mountains in West Kalimantan and Its Contribution to Sedimentary Provenance in the Sundaland Nugroho Imam Setiawan; Yasuhito Osanai; Nobuhiko Nakano; Tatsuro Adachi; Lucas Donny Setiadji; Joko Wahyudiono
Berita Sedimentologi Vol 28, No 1 (2013)
Publisher : Ikatan Ahli Geologi Indonesia

This contribution presents petrography, geochemical characteristicc and LA-ICP-MS U-Pb zircon dating from metatonalites in the Schwaner Mountains of West Kalimantan. The metatonalites mainly consist of plagioclase, biotite, quartz, apatite, muscovite, and titanite with relict clinopyroxene surrounded by hornblende. The geochemical characteristics show that the rocks have calc-alkaline affinities and were derived from subduction-related arc tectonic environment. Some of the metatonalites have adakite signature, which suggests the Schwaner Mountains were not formed by a consecutive subduction system. The result of LA-ICP-MS U-Pb zircon dating reveals that the metatonalite has magmatic age at 233 ± 3 Ma (Late Triassic), which is the oldest magmatic age in the Schwaner Mountains. Therefore, it strongly suggests that the Schwaner Mountains has significantly potential for important sedimentary sources in Sundaland not only from Cretaceous age but also from Triassic age as well as Tin Belt granites from Malay Peninsula.

An Introduction to Paleozoic Faunas and Floras of Indonesia J.T. (Han) van Gorsel
Berita Sedimentologi Vol 31, No 1 (2014)
Publisher : Ikatan Ahli Geologi Indonesia

In the Indonesian region the most complete Paleozoic sedimentary section is in West Papua, where parts of the older Australian continental margin sequence are exposed. The oldest fossils are Ordovician-Silurian age corals and graptolites. The only Early Paleozoic fossils in West Indonesia are the enigmatic occurrence of a Devonian coral and stromatoporoid in limestone blocks in a melange section of uncertain age in NE Kalimantan. Late Paleozoic faunas and floras are more widespread across Indonesia, mainly on Sumatra, Timor and West Borneo, where the oldest fossils are of Late Carboniferous and Permian ages.Paleozoic fossils from Indonesia are mainly marine organisms, but non-marine Permian plant fossils are known from Sumatra and West Papua. Some assemblages or species signify 'low-latitude Tethyan' settings; others have 'anti-tropical/subtropical Tethyan' or 'Gondwanan' affinities, which helps constrain plate reconstruction models.

Event Deposits: The Role of Sediment Supply and Relative Sea-level Changes - Overview G. Einsele
Berita Sedimentologi Vol 7, No 1 (1998)
Publisher : Ikatan Ahli Geologi Indonesia

This overview on event deposits is based on (1) a brief summary on denudation rates in regions of various relief and climate as derived from the suspended and bed loads of river, (2) the fractions of sand and mud present in the filld of various basins, and (3) the mechanisms controlling sediment remobilization.

The Relic Fluvial-Dominated Morphology of Mahakam Delta Salahuddin Salahuddin
Berita Sedimentologi Vol 21, No 1 (2011)
Publisher : Ikatan Ahli Geologi Indonesia

The Mahakam Delta lies at the mouth of the Mahakam River on the east coast of Kalimantan, about 50 km south of the equator. Geologically, the delta is located in the Kutai Basin, one of the major hydrocarbon provinces of Indonesia since the end of the 19th century.This short article attempts to present another sedimentologist’s point of view on looking at the deltaic morphology, as supported by quantitative analysis of controlling factors. Primary data on submerged morphology of the Mahakam Delta was detailed by 381 bathymetric echosounder (using a single frequency portable Raytheon DE719D MK2) survey lines that transversed all the channels as far as 10 kilometers to the offshore, with an accuracy of about 0.5% of the indicated depth, collected during two years from 2003 to 2004.

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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