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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 5 Documents
 1 
Search results for , issue "Vol 18, No 1 (2003)" : 5 Documents clear
Application of Neural-network Technology in Analyzing Deep-water Depositional Elements Deddy Aditya Sebayang
Berita Sedimentologi Vol 18, No 1 (2003)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1152.808 KB) | DOI: 10.51835/bsed.2003.18.1.233

Abstract

The introduction of neural-network technology in 3D seismic interpretation proves to be a powerful tool in constructing depositional elements in basin plain environment. The most known software that uses neural network technology to classify the seismic facies by imitating the human's brain work is Stratimagic. Its 'magic' requires a reference surface, interval thickness (window) and number of iteration as data inputs to create a facies map.The reference surface(s) is used as a reference to define the interval thickness. Interval thickness acts as a processing window that depends mostly on lithology complexity and the quality of the seismic data while the number of iteration defines how much trial-and-error processes are needed in search of a better correlation to the real traces. The result is a series of signal traces that represents the diversity of the signal shape over the seismic volume. In other word, Neural Network Technology trains itself actual trace shapes within a 3D seismic interval by constructing synthetic seismic traces.
Inversion Technology Application for Reservoir Characterization in Indonesia F. Hasan Sidi
Berita Sedimentologi Vol 18, No 1 (2003)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4333.001 KB) | DOI: 10.51835/bsed.2003.18.1.228

Abstract

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.
Seismic Expression of Shelf Breaks: Examples from Borneo/Kalimantan Basins Herman Darman
Berita Sedimentologi Vol 18, No 1 (2003)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3045.982 KB) | DOI: 10.51835/bsed.2003.18.1.229

Abstract

Shelf break is a physiographic province in a basin defined by a change in dip from the shelf (dipping less than 1:1000 landward of the shelf edge) to the slope (dipping more than 1:40 seaward of the shelf edge). Vanney and Stanley (1983) described it is a point of the first major change in gradient at the outermost edge of the shelf, and its depth, distance from shore and configuration are highly variable. The shelf break is a distinct, critical interface of continental margins, which delineates the major physiographic boundary between two major submarine provinces, shelf and slope.Clinoform features and accordingly shelf breaks are expressed well in some seismic sections in the Tertiary basins surrounding Borneo or Kalimantan Island. Some seismic examples are taken from offshore Kutai, Tarakan, Sandakan, and NW Borneo basins. The depositional environments of the clastic systems of these basins range from fluvial to deepwater environment.
The Late Quaternary Depositional History of the Baram Delta and Its Adjacent Brunei Shelf Francis Ik Sing Ho
Berita Sedimentologi Vol 18, No 1 (2003)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1134.096 KB) | DOI: 10.51835/bsed.2003.18.1.230

Abstract

The Baram Delta, located in the NW Borneo, has long been recognized as prolific oil producing province in this region. The stratigraphic history of the Baram Delta has recently become a topic of many studies. The present day Baram Delta depositional processes have been widely used as an analogue to interpret the  ancient depositional framework of sedimentary successions in this area. As an aid to the reconstruction of the modern depositional model of the Baram system, this research project is initiated with two main goals.The primary objective of this research is to describe the distribution pattern and acoustic character of the Late Quaternary fluvial-deltaic-estuarine deposits preserved on the western Brunei Shelf. The approach adopted involves the use of high-resolution (Minigun, 2.5 kHz) seismic reflection data to map stratigraphic boundaries and to characterize seismic facies units bounded by these surfaces. Correlation of seismic horizons, mapping of faults and seismic units, and the generation of isochron and paleogeographic maps help to interpret the depositional processes and shelf evolution through the last eustatic cycle.The secondary objective of this research includes the study and evaluation of the evolution of the paleo-Baram coastline during the last highstand, with respect to the present rate of sediment discharge from the Baram River. The result so derived may assist us to better understand the depositional environment of the most recent Baram Delta sequences.
Unravelling Salt Structural Evolution: Case Study from West Africa Nila Murti
Berita Sedimentologi Vol 18, No 1 (2003)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2721.419 KB) | DOI: 10.51835/bsed.2003.18.1.231

Abstract

The offshore area of Guinea Bissau is part of the Mauritania-Senegal Basin that forms a part of Mesozoic-Cenozoic basin in the Central Atlantic passive margin of West Africa. Its geological history reflects the evolution of the Atlantic Ocean. The area is also located in one of the salt basins in West Africa, with a syn-rift salt sequence or Triassic-Early Jurassic age. The sequence formed various salt structures, which provide potential hydrocarbon trapping mechanisms. To reveal the distribution and evolution of the salt structures in the Offshore Guinea Bissau will lead to the better understanding of interaction between the sediments and the structures. The study will also give explanation for reservoir distribution, the timing of trap formation and the shape of salt structures, hence helping to better locate the prospects in hydrocarbon exploration activity.

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