Berita Sedimentologi
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.
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Book Review: Mesozoic Geology and Paleontology of Misool Archipelago, Eastern Indonesia
Herman Darman
Berita Sedimentologi Vol 31, No 1 (2014)
Publisher : Ikatan Ahli Geologi Indonesia
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DOI: 10.51835/bsed.2014.31.1.130
Scientific publications on the Mesozoic of Eastern Indonesia are very rare. This region is relatively remote and accesses to outcrops are generally difficult. Recent publications are predominantly published by petroleum companies based on their subsurface data. It is important to integrate subsurface and outcrops to understand the geology of the area. Hasibuan’s research on becomes important piece of information because he worked entirely based on outcrop data.
Learning Biostratigraphy in University of Gadjah Mada
Diyaning Ratri;
Fitra Annurhutami
Berita Sedimentologi Vol 31, No 1 (2014)
Publisher : Ikatan Ahli Geologi Indonesia
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DOI: 10.51835/bsed.2014.31.1.126
Biostratigraphy is an even-semester elective course (non-mandatory) only offered to sophomores and higher in Gadjah Mada University, Yogyakarta. Many students choose to take this course on their 4th semester since it will ease them to understand other advanced materials on the next semesters such as paleontology and stratigraphy analysis. The course usually starts in the 4nd week of February and held every Thursday for 2x50 minutes.
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
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DOI: 10.51835/bsed.2014.31.1.122
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.
Learning Biostratigraphy in University of Pembangunan Nasional “Veteran” Yogyakarta
Hari Irwanto;
Satrio Esti Hapsoro
Berita Sedimentologi Vol 31, No 1 (2014)
Publisher : Ikatan Ahli Geologi Indonesia
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DOI: 10.51835/bsed.2014.31.1.127
Biostratigraphy class is one of many scientific disciplines in the curriculum of Geological Engineering Department, University of Pembangunan Nasional “Veteran” Yogyakarta. The campus had been located at SWK street 104 North Ringroad, Sleman Regency, Yogyakarta Province.
An Introduction to Mesozoic Faunas and Floras of Indonesia
J.T. (Han) van Gorsel
Berita Sedimentologi Vol 31, No 1 (2014)
Publisher : Ikatan Ahli Geologi Indonesia
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DOI: 10.51835/bsed.2014.31.1.123
This paper is a continuation of the paper on Paleozoic and reviews the main Mesozoic fossil groups of Indonesia and key literature, with focus on groups that are of biostratigraphic or paleobiogeographic significance.
Learning Biostratigraphy in University of Diponegoro, Semarang
Lucky Agustina;
Samuel Richard Natanael Simorangkir
Berita Sedimentologi Vol 31, No 1 (2014)
Publisher : Ikatan Ahli Geologi Indonesia
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DOI: 10.51835/bsed.2014.31.1.128
Biostratigraphy is a branch of stratigraphy, which focuses on correlating and assigning relative ages of rock strata by using the fossil assemblages contained within them. In Diponegoro University, Semarang, Central Java Province, we learn biostratigraphy in micropaleontology subject, in the 5th semester. In total there are 6 months per semester and we get approximately 12 classes given by the lecturers and 10 other classes given by the lecturer assistants in the laboratory. In the class, there are 100 students, taught by 2 lecturers Mr. Hadi Nugroho, and Ms. Anis Kurniasih. They are the lecturer in paleontology, with master degrees. The lecturer assistants in the laboratory are our senior students who were interviewed and selected by the lecturers.
The Manusela Limestone in Seram: Late Triassic Age for A ‘Jurassic’ Petroleum Play
Tim R. Charlton;
J.T. (Han) van Gorsel
Berita Sedimentologi Vol 31, No 1 (2014)
Publisher : Ikatan Ahli Geologi Indonesia
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DOI: 10.51835/bsed.2014.31.1.124
A well-known Mesozoic hydrocarbon exploration target in eastern Indonesia is the ‘Jurassic Limestone Play’, validated by the Oseil oilfield in NE Seram. However, there is no biostratigraphic evidence to support a Jurassic age for the Manusela Limestone that forms the reservoir in this play, while numerous paleontological studies on outcrops and wells instead document only Late Triassic faunas and microfloras.We here review the paleontological literature on Seram and suggest that the Manusela Limestone is of latest Triassic (Late Norian-Rhaetian) age, while the Early-Middle Jurassic interval is condensed or absent over the structural highs established as a result of the Manusela Limestone accumulation. This revised (but in reality 100 years old) age model fits well in Tethys-wide trends where sponge- and algae-dominated reefs blossomed during the Norian-Rhaetian from the Alps to NW Australia-Papua New Guinea, while a major extinction event at the end of the Triassic caused a collapse of carbonate reef systems globally, leading to a virtual absence of reefal limestones during the Early-Middle Jurassic.
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
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DOI: 10.51835/bsed.2014.31.1.129
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.
Planktonic Foraminifera Biozonation of the Middle Eocene-Oligocene Kebo Formation, Kalinampu Area, Bayat, Klaten, Central Java
Dian Novita;
Didit Hadi Barianto;
Moch. Indra Novian
Berita Sedimentologi Vol 31, No 1 (2014)
Publisher : Ikatan Ahli Geologi Indonesia
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DOI: 10.51835/bsed.2014.31.1.125
Research on foraminifera from the Paleogene volcanoclastics-dominated Kebo Butak Formation of Central Java is limited. A study was conducted in the Kalinampu and surrounding areas of Bayat, Klaten, Central Java. The study included measuring of three stratigraphic sections and geological mapping. The study area contains the Nampurejo pillow lava, which is considered to be the base of the Kebo-Butak Formation (part of the 'Old Andesites' complex of South Java), but its Middle Eocene age is older than previously assumed.Correlation and biozone interpretation allowed the recognition of 12 planktonic foraminifera zones, ranging in age from Middle Eocene (P11) to Early Miocene (N5). Depositional environments are all deep marine, ranging from lower bathyal to upper bathyal.