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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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Tertiary Uplift and the Miocene Evolution of the NW Borneo Shelf Margin Franz L. Kessler; John Jong
Berita Sedimentologi Vol 33, No 1 (2015)
Publisher : Ikatan Ahli Geologi Indonesia

NW Borneo, of which the shelfal margin extends from the West Baram Line in the southeast to the Balabac Line in the northwest, encompasses an area of active hydrocarbon exploration since the 1970’s. A large number of the earlier oil and gas finds are located in shelfal reservoirs of Neogene age. In this study, we portray the development of the Miocene shelf from the standpoints of stratigraphy, sea sea-level fluctuations, hinterland uplift and sediment recycling; mobile clay tectonics and, last but not least, the impact of the monsoon climate. Balancing the different viewpoints, we believe the transition from a muddy Mi Mid-Miocene shelf to an unusually sandy one can be attributed to two independent factors, which are:The rise of the Borneo part of Sundaland in the Middle to Late Miocene, caused by tectonic compression, in combination with the influence of the monsoon climate, andThe availability, through erosion of the Rajang/Crocker system, of massive amounts of sand delivered to the basin in geologically short time intervals.The Early to Mid-Miocene Cycle III/Stage III “Setap Shale” and other sediments in the Baram Delta appear characteristically lean in sand in most areas. The available data suggest that the first massive regional sand pulse originated at the same time in the Baram Delta, Brunei and Sabah, during Cycle IV/Stage IVA (Serravallian), post-MMU/DRU times. Continued sand supply established a shelf edge that remained almost stationary throughout Mid Cycle V/Stage IVC. As compression and uplift continued, the Middle to Late Miocene Cycles IV/V (Stages IVA-E) shelf saw local modification by hydraulic clay injection. During Cycles V/VI, and also in the Stages IVD-F, we see a further major expansion of the shelf. The question, as to which of these pulses can be linked to sea-level fluctuations, remains open; though it appears that the Borneo uplift has “outrun” rising sea-level at least since the Late Pleistocene.

Paleomagnetic Study of Selected Dykes and Lava Flows from Bandung Area Edy Sunardi
Berita Sedimentologi Vol 8, No 1 (1998)
Publisher : Ikatan Ahli Geologi Indonesia

Attempts have been made to determine the stability of a geomagnetic field for the last 4 Ma of Plio-Pleistocene volcanic rocks from the Bandung area, and it was found that the geomagnetic directions were indicated to be much deflected from the present geomagnetic direction, and in the present study were supported by complementary studies of petrographical and geochemical characteristics leads to a better comprehensive on the variations of the Earth's magnetic field. The result shown that most of K-Ar ages are consistent with obtained magnetic polarity and other stratigraphic indicators. Therefore, an improved chronostratigraphy in this area would be as a standard for correlation, especially to establish the Plio-Pleistocene stratigraphy on the area such like West Java in particular, which is mainly dominated by volcanic origin.

A Short Note on Sedimentary Rocks of the Barru Area, South Sulawesi Asri Jaya; Sufriadin Sufriadin; Irzal Nur
Berita Sedimentologi Vol 22, No 1 (2011)
Publisher : Ikatan Ahli Geologi Indonesia

Barru area comprises four sedimentary sequences that include Cretaceous flysch sediment of Balangbaru Formation in the lower part, overlain by Tertiary terrestrial sediments of Mallawa, shallow-marine redeposited carbonate of Tonasa and volcaniclastics sediment of Camba Formations in the upper part. Three of these sequences show characteristics of deep-marine depositional system that are associated with turbidite – debris flow facies and post-depositional deformation structures. Their occurrences are interpreted to have been controlled by regional tectonics, in particular during the redeposition of the Tonasa Formation carbonates and also the volcaniclastic-epiclastic of the Camba Formation. The difficulties in defining sedimentary basin in this area might possibly be, in part, due to the basin was modified during or after the depositional period. Therefore, it is very hard to trace the basin continuously in only one site.

Carbonate Slope Deposit of Bengalun River, East Kalimantan Herman Darman
Berita Sedimentologi Vol 10, No 1 (1998)
Publisher : Ikatan Ahli Geologi Indonesia

The Bengalon River is located in East Kalimantan, close to the northeastern margin of the Kutei Basin. A thick Paleogene and Neogene sedimentary package occur in this area, ranging from deep marine to fluviomarine depositional environments. This short note discusses the Early Miocene deep marine carbonates, particularly the calci-turbidite deposits.

Seismic Expression of Geological Features in Seram Sea: Seram Trough, Misool-Onin Ridge and Sedimentary Basin Darman, Herman; Reemst, Paul
Berita Sedimentologi Vol 23, No 1 (2012)
Publisher : Ikatan Ahli Geologi Indonesia

The Seram Sea is located between Seram Island and the Bird’s Head of Papua, Eastern Indonesia. This sea extends to the east towards Bintuni Bay. Some part of the sea, between Seram and Misool are deeper than 2000 m. The Seram Island is mountainous with altitudes reaching 3000 m above sea level at the center of the island.Several seismic surveys have been conducted to understand the geology of this region. The first seismic sections were published by Hamilton in 1979. These seismic sections were acquired by Western Geophysical for Phillips Petroleum. In 2000, Schlumberger published some seismic lines acquired in 1997 with an improved resolution improvement. More higher quality seismic lines were acquired as part of non exclusive and multi-client projects in the late 1990’s which provide a better geological understanding of the region and lead to several petroleum exploration opportunities.This article discusses the seismic expression of several geological features in the Seram Sea vicinity based on published seismic sections. The offshore seismic sections cover part of the imbricated complex in the north of Seram Island, the Seram Trough, the Misool-Onin High and the sedimentary basins the east of the Misool-Onin Ridge, such as the Tamaloi-Malagot Basin, the Semai-Berau Basin and the Bintuni Basin.

Cover and Front Matter Berita Sedimentologi
Berita Sedimentologi Vol 47, No 3 (2021)
Publisher : Ikatan Ahli Geologi Indonesia

Cover and Front Matter of Berita Sedimentologi Vol. 47 No. 3, 2021

How Did Channel Systems Survive High Sea Level Periods? New Sedimentological Insights from Outcrop, Modern Analogue and Subsurface Data in the Lower Kutai Basin, E. Kalimantan Erlangga Septama; Pambudi Suseno; Chandra Mustopa EP; Gilang Nuansa; Febri Iswanto; Rizky Andi
Berita Sedimentologi Vol 42, No 1 (2019)
Publisher : Ikatan Ahli Geologi Indonesia

It is generally assumed that fluvial depositions reached their peak in low sea level conditions and that high sea levels were generally considered as a period of neglected breaks in sedimentation and thus were ordinarily interpreted to be associated with an abandonment phase. In contrast, our recent findings from outcrop and subsurface data in the Lower Kutai Basin, East Kalimantan has revealed a complex response in the channel-fill development stages within relatively high sea level periods (either authigenic or allogenic factors). Evidence has shown that some channels certainly “survived” the abandonment period.A three km detailed transect was measured through several road cuts and coal mines in the Samarinda Anticlinorium area. The well log, FMI, pressure analysis and core petrographic analyses permit an assessment of the subsurface pattern. The integrated biostratigraphy data (foraminifera, nanno-plankton and palynology) are used to synthesize the regional marker. This study also benefitted from unmanned aerial vehicle (UAV) mapping, which created a high resolution (1-3 cm precision) 3D digital outcrop model (DOM). To complete the final perspective view, the recent channel deposits in the Mahakam Delta and Balikpapan bay are also used as a comparative model. These entire measurements and intensive amount of information are synthesized into the integrated geological model.We identify three typical depositional models of highstand channels due to their specific responses at the channel upper boundary, namely: i) drowned fluvial channel, ii) backfilled/keep-up channel and iii) fluvial channel to shoreface rejuvenation. This study also reveals new insights about the sedimentary processes and facies geometries in the Lower Kutai basin. This unique phenomenon was affected by (a) a large tidal prism area that covers the entire delta systems and (b) a short (40-45 km.) fluvial to shelf sedimentation conduits, combined with (c) relatively high sedimentation fluxes. This type of sand has been long overlooked and currently become recognized as a new bypassed oil reservoir. This new insight is noteworthy toward the re-assessment of the geological model.

Neogene Dinoflagellate Cysts from A Deep Water Wel, Offshore Sabah, Northern Borneo Huibert van den Brink
Berita Sedimentologi Vol 16, No 1 (2001)
Publisher : Ikatan Ahli Geologi Indonesia

A research project is carried out with the objective to establish a dinoflagellate cyst biozonation for deep water wells drilled offshore Sabah and Brunei, envisaged to complement the biozonations based on nannoplankton, foraminifera and pollen. Ditch cutting samples from a pilot well have been analyzed for dinoflagellate cyst only, resulting in a list of FDO's, which could contain stratigraphic value: Hystrichokolpoma rigaudiae and Hystrichokolpoma okinawainum at 3150'. Operculodinium sp. A at 3840', Dapsilidinium pastielsii at 4140' and Lingulodinium pycnospinosum at 4950' within the Pliocene section; Selenopemphix brevispinosa Head et al. 1989 subsp. brevispinosa at 5760', consistent occurrence of Achomosphaera sp. B at 5760' and Systematophora placacantha at 6495' within the Upper Miocene section. The correlation potential should be checked in a follow-up well.

Review of the Palaeozoic Stratigraphy of the Langkawi Islands, Malaysia Chai Peng Lee
Berita Sedimentologi Vol 27, No 1 (2013)
Publisher : Ikatan Ahli Geologi Indonesia

The Langkawi group of 99 islands off the northwest coast of Malaysian Peninsula is located some 30 km off the coast of Perlis and 112 km north of Penang. These islands are a paradise for geologists, including some of the best and most interesting exposures of Palaeozoic sedimentary rocks in Malaysia, ranging in age from Cambrian to Permian. These consist of both clastics and carbonates, deposited within a range of depositional and palaeoclimatic conditions ranging from shallow marine shoreface to turbidites with dropstones. In addition, these sedimentary rocks had been intruded by younger Mesozoic granites with considerable contact metamorphic effects.Since the initial publication of the Geological Map of Langkawi and the subsequent Geology and Mineral Resources Memoir 17 on the States of Perlis, North Kedah and the Langkawi Islands, both by Jones (1966, 1981) many more recent studies had been carried out. These studies were particularly facilitated by the creation of new outcrops due to numerous recent development projects on the islands. A helpful compilation of published and unpublished geological researches on Langkawi was compiled by Sarman et al. (1997).The spectacular geological heritage of the islands heralded the formation of the Langkawi Geoforestpark by the Kedah State Government, Malaysia in May 2006 to preserve and display its unique geological features. The Geoforestpark was endorsed by the United Nations Educational, Scientific and Cultural Organization (UNESCO) under the Global Network of National Geoparks in June 2007 (Leman et al., 2007).

The Life and Scientific Legacy of Indonesian Paleontologist Dr. Tan Sin Hok (1902-1945) Munasri Munasri; J.T. (Han) van Gorsel
Berita Sedimentologi Vol 31, No 1 (2014)
Publisher : Ikatan Ahli Geologi Indonesia

Tan Sin Hok was probably Indonesia's most influential paleontologist. He was born and raised in West Java and was the only Indonesian with an academic earth science education from The Netherlands before World War II. His Ph.D thesis in 1927 was a pioneering study on little-known Cretaceous radiolaria and Tertiary calcareous nannofossils from Roti and Timor. Subsequent work during his professional career as paleontologist of the Geological Survey in Bandung mainly focused on evolution of Cenozoic larger foraminifera. Tan's scientific legacy was accomplished before he was 40 years old, when the Japanese occupation terminated his research and the turmoil immediately thereafter took his life.Although Tan Sin Hok made significant original contributions to taxonomy and evolution of several microfossil groups, he initially failed to recognize the potential biostratigraphic value of radiolaria and nannofossils; important high-resolution zonations of these groups were developed by other workers in the 1950's and later. Tan's novel approach to evolution and systematics of larger foraminifera of Indonesia appeared to resonate only with 'schools' in The Netherlands, probably largely because his publications were mainly written in Dutch and German and published in Dutch and 'Netherlands Indies' journals with limited distributions.

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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