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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

1 2 3 4 5

Structural Development, Deposition Model and Petroleum System of Paleogene Carbonate of the Engkabang-Karap Anticline, Onshore Sarawak John Jong; Frank Kessler; Steve Noon; Tran Quoc Tan
Berita Sedimentologi Vol 34, No 1 (2016)
Publisher : Ikatan Ahli Geologi Indonesia

To further investigate the hydrocarbon potential of the 400 km2 large Eocene - Oligocene carbonate body of the Engkabang-Karap Anticline, onshore Sarawak, high-resolution 2D seismic data, aero-gravity and magnetics were acquired by JX Nippon in 2009 and 2010. Interpretation of the latter confirmed the existence of a large carbonate-cored anticline, previously drilled by Shell in 1959-1960 and proving sub-economic gas in a massive 272m section of tightly cemented and dolomitized limestone, with little or no matrix porosity/permeability retained.Recent drilling results of Engkabang West-1 by JX Nippon confirmed the presence of gas in tight carbonate reservoirs, consisting of mainly mudstone and wackestone, but DST flow rates proved to be un-economic. The latest biostratigraphic analyses of the Engkabang wells indicate the presence of a number of key stratal events related to regional unconformities and hiatuses, suggesting that the basin ramp area saw periods of compression, inversion and/or uplift. The new seismic data indicate significant structural deformation, including strike-slip tectonism and local overthrusting, not seen on older seismic, nor noticed from the interpretation of surface geology. There is also seismic evidence of a low-angle detachment plane, linked to a zone of increased tectonism commonly referred to as the Baram Line. Other than in the nearby Lambir Hills, there is hardly any visible sign of major deformation on the surface, whilst biostratigraphic data of the Engkabang wells suggest the last folding event occurred during the Pliocene. Associated with elements of compressive folding, thrusting and strike-slip movements, the study area seemed to have undergone strong tectonic stresses caused by movements along the nearby Baram Line and Belait Wrench system.This resulted in active mud volcanism, with the active Karap mud volcano located to the southwest of Marudi Township. Post-folding, peneplanation truncated the anticline, followed by a cover of Quaternary alluvial deposits. The proposed structural model, an overthrust system rooted in a low-angle detachment plane, explains the occurrences of both shallow oil and deep gas, including mud volcanism. This trapping mechanism may also be present in other areas of onshore Sarawak and can be considered as a new hydrocarbon play. Although the petroleum system is relatively well-established with significant potential upside, technical challenges remain to further derisk the carbonate play. The tight reservoir facies encountered in both wells suggest well-developed fracture systems will be needed to improve flow rates, but fracture orientation can only be mapped with properly designed 3D seismic coverage.

Depositional and Diagenetic Models of Miocene Parigi and Pre-Parigi Carbonates Offshore Northwest Java, Indonesia Fransiskus J. Sugiaman
Berita Sedimentologi Vol 10, No 1 (1998)
Publisher : Ikatan Ahli Geologi Indonesia

An integrated approach to understanding the deposition and diagenesis of the Parigi carbonates in KL area and the Pre-Parigi carbonates in APN area has been developed using petrographic, well logs and seismic analysis.

Middle Jurassic Ammonites from The Cendrawasih Bay Coast and North Lengguru Fold-Belt, West PApua: Implications of a ‘Forgotten’ 1913 Paper van Gorsel, J.T. (Han)
Berita Sedimentologi Vol 23, No 1 (2012)
Publisher : Ikatan Ahli Geologi Indonesia

Occurrences of Middle Jurassic bathyal shales with typical ammonite faunas were reported from the 'Birds Neck', West Papua, in 1913 and 1927 publications but these appear to be largely forgotten. They signify an eastern limit for the gas-productive Middle Jurassic sands of Bintuni Bay and thus have significant negative implications for the potential of Mesozoic hydrocarbon plays in Cenderawasih Bay.

Hominin Femur finding from Banjarejo: Its morphological character and taxonomical position Sofwan Noerwidi; Rusyad Adi Suriyanto; Ashwin Prayudi; Harry Widianto
Berita Sedimentologi Vol 47, No 3 (2021)
Publisher : Ikatan Ahli Geologi Indonesia

Recently, Banjarejo became an important prehistoric site for Quaternary research because of its significant faunal and hominin remains. This study aims to describe a new finding of the hominin femur specimen from the site and its taxonomical position in human evolution. The specimen was identified by morphological and metric descriptions of the external feature of the femur. Then, comparative study to Homo erectus (n=2), Homo neanderthalensis (n=8), Homo heidelbergensis (n=1), prehistoric Homo sapiens (n=44), Australopithecus africanus (n=1), Paranthropus robustus (n=2), also non-human primate including Pongo (n=1), Macaca (n=1) and Gibbon (n=1) using bivariate and multivariate statistical analysis presented the specimen in the evolutionary perspective. This study shows the morphological and metric character of Banjarejo specimen located between Homo erectus and prehistoric Homo sapiens population sample. Further study should be addressed to investigate the cultural and chronological context of the hominin specimen.

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

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.

Radiolarian Research in Some Mesozoic Provinces in Indonesia Munasri Munasri
Berita Sedimentologi Vol 16, No 1 (2001)
Publisher : Ikatan Ahli Geologi Indonesia

The single-celled radiolarians average between 20-200 mm in diameter. These planktonic animals range from Cambrian to Holocene. The name Radiolaria was first proposed by Muller (1858) for marine Sarcodina with radial symmetry to distinguish them from foraminifera. Ehrenberg (1838) proposed the name of Polysystina for fossil skeletons consisting of soild opaline processes. This group includes the two taxa Spumellaria (spherical) and Nassellaria (bell shaped).Although Radiolaria has been known since 19th century, but their fossils were only comprehensively treated for stratigraphic purpose within the last three decades. The new way of extraction of radiolarian-bearing rocks by using hydrofluoric acid solution; and the use of scanning electron microscope have also rapidly enhanced the development of radiolarian research.Recent studies of Radiolaria mostly emphasize their value to biostratigraphic correlation of marine sediments, as almost any initial report of the Deep-Sea Drilling Project has demonstrated.Radiolarians are particularly useful where other microfossils have suffered dissolution. They have also been used to indicate paleogeographic and tectonic change in ocean basin. For examples, radiolarians stratigraphy gave early support to the hypothesis of sea-floor spreading (Riedel, 1967); and paleogeographically distinct low- and high-paleolatitude faunas were described by Baumgartner (1993).

Late Syn-Rift Turbidite Systems in the North Sumatra Basin Lawrence D. Meckel, III
Berita Sedimentologi Vol 27, No 1 (2013)
Publisher : Ikatan Ahli Geologi Indonesia

The North Sumatra Basin in Indonesia is one of the most prolific petroleum provinces in SE Asia. It has been affected by rifting, transtensional and transpressional shear, and compression from the Paleogene to present day. This complex tectonic history has created numerous opportunities for petroleum exploration, including an inverted deepwater turbidite play that has been relatively under-explored to date.

Post-Earthquake groundwater potential analysis in Mamuju Regency, West Sulawesi Olyviani, Elsa; Priyono, Imam; Taufiq, Ahmad; Wardhana, Yan A.W.; Rinaldi, Dipta A.; Nugraha, A.M. Surya
Berita Sedimentologi Vol 48, No 1 (2022)
Publisher : Ikatan Ahli Geologi Indonesia

The earthquakes that occurred in January 2021 at Mamuju, West Sulawesi not only caused damage to buildings but also destruction of water facilities. Thus, question is raised about the changes of groundwater quality in the area. This study aims to follow up this question by conducting the geoelectric measurement, pumping test, and water quality analysis. Based on the resistivity values of geoelectrical data, each area has aquifers in different stratigraphic layers of (1) calcareous sandstone of the Mamuju Formation, (2) lapilli rock of the Gunung Api Adang Formation, (3) breccia of the Gunung Api Adang Formation and (4) sandstone of the Alluvium deposit. These aquifers are mainly confined and were grouped into the shallow (less than 25 m deep) and deep (more than 25 m deep) aquifers. Water quality from the groundwater wells meet the criteria of Environmental Health Quality Standards, except for one well GL03-PLDA that has high manganese content. Determined discharge values suggest that water resources are enough to support around 3916 people or 999 settlements in Mamuju District and about 11664 people or 2916 settlements in Simboro District.

Baram Line or West Baram Line? A Discussion with Late Prof. H.D. Tjia on Its Nomenclature in Jong et al. (2016) Franz L. Kessler; John Jong
Berita Sedimentologi Vol 36, No 1 (2016)
Publisher : Ikatan Ahli Geologi Indonesia

This note summarises the unedited correspondence and discussion we had with late Prof. H.D. Tjia on the above topic, starting with an initial email received by the corresponding author of the article “Structural Development, Deposition Model and Petroleum System of Paleogene Carbonate of the Engkabang-Karap Anticline, Onshore Sarawak” by Jong et al. (2016) published in Berita Sedimentologi, Vol. 34, p. 5-25.

Sedimentary Facies of the Mahakam Delta: Comparison between the Modern and the Miocene A. Wiweko; B. Giriansyah
Berita Sedimentologi Vol 12, No 1 (1999)
Publisher : Ikatan Ahli Geologi Indonesia

The Mahakam Delta is located on the eastern coast of Kalimantan Island, some 50 km south of the equator. The coastline of this area is oriented NNE-SSW, and is open to the Makassar Straits which are about 200 km wide, separating Kalimantan and Sulawesi.Field studies in the modern Mahakam Delta have been conducted by several workers. G.P. Allen, in 1974, conducted fieldwork to acquire a preliminary understanding of the sedimentary framework and characteistic facies distribution. The work was based on field observation, sediment sampling by using a Berthois hand dredge (surface sediment sampling) and coring devices (up to 2-4 meters depth), and water samples. In 1975, a second phase of study was conducted involving a coring program on the modern Mahakam Delta. The objective was to study the major geometrical characteristics and facies patterns of the formations. Additional coring program was conducted in 1976, which consisted of a number of shallower auger holes of up to 10 metres depth, and surface sediment samples. Allen (1992) conducted fieldwork in the large mouth bar system adjacent to Muara Bujit. The study was based on surface sediment sampling and shallow coring (up to 6 metres depth) to determine the geometry, facies patterns and internal architecture of a distributary mouth bar. The second phase of this work was done in 1993 and focused on the crest of the active distributary mouth bar to determine the detailed facies pattern, reservoir architecture and heterogeneity within the bar. The lengths of the vibracores used in this work were insufficient to determine in detail the thickness and geometry of the bar system. Therefore, coring campaign was again conducted in 1997, with drilling platform capable of drilling to depths of 20 m.Results of several studies conducted in the modern Mahakam sediments were then compared with facies analysis of the Miocene cores to understand any differences in terms of depositional energy between the modern and the Miocene sediments.

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

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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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