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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 7 Documents
 1 
Search results for , issue "Vol 20, No 1 (2011)" : 7 Documents clear
First Evidence of Miocene Avian Tracks from Sumatra: Short Announcement Yahdi Zaim; Yan Rizal; Gregg F. Gunnell; Thomas A. Stidham; Russell L. Ciochon; Aswan Aswan
Berita Sedimentologi Vol 20, No 1 (2011)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (561.194 KB) | DOI: 10.51835/bsed.2011.20.1.214

Abstract

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Book Review: Sumatra. Geology, Resources and Tectonic Evolution Fatrial Bahesti
Berita Sedimentologi Vol 20, No 1 (2011)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (97.201 KB) | DOI: 10.51835/bsed.2011.20.1.219

Abstract

BARBER, A. J., CROW, M. J. and MILSOM, J. S. 2005. Sumatra. Geology, Resources and Tectonic Evolution. Geological Society Memoir no. 31. ix + 290 pp. London, Bath: Geological Society of London. ISBN 1 86239 180 7. doi:10.1017/S0016756806212974.
Outcrops Conservation of Tanjung Baru or Lower Talang Akar Formation, Baturaja City of Palembang Area - South Sumatra Basin: How important? Premonowati Premonowati
Berita Sedimentologi Vol 20, No 1 (2011)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (756.135 KB) | DOI: 10.51835/bsed.2011.20.1.215

Abstract

Tanjung Baru Formation only outcropped in one location so called Tanjung Baru, Palembang, South Sumatra. In total this formation is expossed in an area of about one acre. The outcrop is a quartz sandstone quarry, which has become smaller in size rapidly because of intensive mining activities by the local community. The formation is also called Gritsand Member (GRM) of the Lower Talang Akar Formation/Lemat Formation/Lahat Formation. A different name from Talang Akar Formation was given to this formation because it has an important role in the tectonostratigraphy context. Tanjung Baru Formations has different genetic, location and section type from that of Talang Akar Formation. The formation consists of conglomeratic sandstone of channel deposit. The sections indicate five times of channeling with each channel has a geometry of 20 m long and 9 m thick. This lag sedimentary deposit consists of fine- to very coarse-grained sandstones. The erosional base contact has polymictic conglomeratic sandstone outcrop with gradded bedding and planar crossbedding that indicate high energy deposition like channelized environment in shallow marine. The fining upward succession was a result of lateral accretion of channel shifting or a fluvial channel system depositional environment. The very fine sand of channel plug was deposited in a very low energy environment before the channel was abandoned. Some parts have shaly and coal streaks with mafic and feldspatic minerals. This formation has an indication to be an excellent reservoir.The geology of Tanjung Baru Formation is an important object to study because it is the one and only outcrop that needs to be conserved. The objective is to save this outcrop from extinction. A socialization to the Governor of South Sumatra Province and Head of Palembang Regent needs to be done. The government has to create a regulation to stop the mining activities, build a boundary for the outcrops with plantation and put an information board to explain that it’s a conservation area. Let all geology students and also people of all generations to have a possibility to learn Tanjung Baru Formation from this outcrop as a geopark.
University: An Announcement Berita Sedimentologi
Berita Sedimentologi Vol 20, No 1 (2011)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (159.895 KB) | DOI: 10.51835/bsed.2011.20.1.220

Abstract

As Berita Sedimentologi journal aimed to bridge communications, the editor has prepared a special column for the academia, both lecturer and students. In this column, university researchers, lecturers and even students could contribute their articles.Students are welcome to submit their papers related to their laboratory, field studies, or campus academic activities related to sedimentary geology.For students who like to take their opportunity to publish their article, please follow the following guideline:Get permission from supervisorGet permission from the sponsoring company if applicable.Prepare figures such as:MapStratigraphic columnOutcrop photosPrepare the text in EnglishTotal pages including the figures should not longer than 3 pages of A4 size paper. The editors are happy to assist further on the paper preparation.This space will also accommodate news related to student activities such as field trips, seminars, conference, etc. AAPG student chapters, for example, could submit their activity news.
Half-Day Visit to Solok-Sawahlunto Area, Ombilin Basin: A Short Observation on Non-marine Depositional Sequences RM Iman Argakoesoemah; Didit Ariady Firmansyah
Berita Sedimentologi Vol 20, No 1 (2011)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1040.846 KB) | DOI: 10.51835/bsed.2011.20.1.216

Abstract

This is a brief note of our visit to Solok, Sawahlunto area, Ombilin Basin on November 8, 2008 for the purpose of broadening our knowledge on non-marine depositional sequence and its relationship to the development of hydrocarbon petroleum system in the region. Exposure of the outcrops is excellent in the form of accessibility and vertical extent of the stacked sequences.Unfortunately, as the time was limited, there was no opportunity to conduct sufficient detailed description of the outcrops. However, several notes of broad observation of the outcrops were made. Part of them is discussed in this paper.A total of eight (8) locations (=STA) were visited during this half-day reconnaissance trip. The traverse began from Solok using a car towards the northeast to locations 1 to 8 following the existing main road to Sawahlunto. The outcrops are easilyaccessed and visible from the main road. Some of the outcrops are located immediately on the edge of the road.
Seismic Expression of Some Geological Features of Andaman-Offshore West Sumatra Subduction zone Herman Darman
Berita Sedimentologi Vol 20, No 1 (2011)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (961.199 KB) | DOI: 10.51835/bsed.2011.20.1.217

Abstract

A subduction zone developed in the south of Myanmar, continued to the Andaman Sea (India), west of Sumatra and south of Java (Indonesia). Two major fault system developed parallel to the subduction zone, so called the Mentawai Fault System and Sumatra Fault system. To the north, where the subduction zone changes its orientation from NNW-SSE to NS, a spreading zone developed towards the east of Andaman Sea. This zone is a complex and active geological system. The 2004 Aceh Tsunami was a major disaster which was triggered in this subduction zone.The Andaman - Offshore West Sumatra subduction system is where part of the Indo-Australian oceanic plate moving northwards and going beneath the southern tip of Eurasian continental plate. Sumatra Island, which is part of Indonesian volcanic island arc, occurs parallel to and inland from the boundary between these two plates. An accretionary prism or wedge has formed from sediments that accreted onto the nonsubducting plate. Most of the material in this wedge consists of marine sediments scraped off from the downgoing slab of Indian oceanic plate with some erosional products of Sumatra volcanics. Fore-arc ridge in this system is a chain of islands (e.g. Andaman, Simeulue, Nias, Mentawai, and Enggano), formed by the accretionary wedge. A series of fore-arc basins developed between the accretionary ridge and the volcanic arc.This region is also an active petroleum exploration area. Recently, there are a number of companies (e.g. Spectrum, TGS and Geco) that provide new and reprocessed seismic lines to the market. These seismic lines show the geological features in this subduction system.
Tectono-stratigraphic Evolution of the Simeulue Forearc Basin, NW Sumatra Edyta Frankowicz
Berita Sedimentologi Vol 20, No 1 (2011)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (409.534 KB) | DOI: 10.51835/bsed.2011.20.1.218

Abstract

This paper presents a tectono-stratigraphic evolutionary model for the Simeulue forearc basin. The Simeulue basin is located offshore NW Sumatra and it is bounded to the west by Simeulue Island and the dextral strike-slip (transpressive) Mentawai Fault System. The basin extends over 260 km in NW-SE direction and 100 km in SW-NE direction. It consists of a deep water area with maximum water depth of approx. 1300 m and contains up to 6 sec TWT of Neogene sediments, most of which are siliciclastics expected to have been derived from Sumatra mainland. The Miocene carbonate build-ups have been the main hydrocarbon exploration target in the basin.

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