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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 2 Documents
 1 
Search results for , issue "Vol 43, No 1 (2019)" : 2 Documents clear
Destructive Diagenesis Observed in Outcrop Examples of Neogene Sandstone Reservoir and Clay Contact Zones, Miri, Northern Sarawak Franz L. Kessler; John Jong
Berita Sedimentologi Vol 43, No 1 (2019)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2290.741 KB) | DOI: 10.51835/bsed.2019.43.1.69

Abstract

The occurrence of diagenetic siderite and iron oxide deposits has been recognized in offshore subsurface reservoirs of Baram Delta fields. Iron-rich intra-reservoir deposits are relatively common in coastal Sarawak, but good examples are rare. In this article, we present outcrop examples of the Miri area. In three selected locations, geometries and composition of diagenetically-derived iron precipitates can be explored, measured and analyzed. The destructive impact of siderite rims on net reservoir volume for STOIIP calculation, and their potential interaction with chemicals used for enhanced oil recovery (EOR) is also noted.
The Stratigraphic Distribution of Neogene Dinoflagellate Cysts from A Deep Water Well, Offshore Sabah, Northern Borneo Huibert van den Brink
Berita Sedimentologi Vol 43, No 1 (2019)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1017.124 KB) | DOI: 10.51835/bsed.2019.43.1.70

Abstract

A research project was initiated with the objective to establish a dinoflagellate cyst biozonation for deep water wells drilled offshore Sabah and Brunei, Northern Borneo, to complement the biozonations based on nannoplankton, foraminifera and spores-pollen.Analysis of dinoflagellate cysts in ditch cutting samples from deep water well Kebabangan-1, offshore Sabah, resulted in a list of FDO’s, which could be of stratigraphic value: Hystrichokolpoma rigaudiae at 3150’, Operculodinium sp. A at 3840’, Dapsilidinium pastielsii at 4140’ and Lingulodinium pycnospinosum at 4950’ within the Pliocene section; Selenopemphix brevispinosa subsp. conspicua at 5760’ and consistent occurrence of Achomosphaera sp. B at 5760’ within the Upper Miocene section. Samples from appraisal well Kebabangan-2 were examined for calibration.Dinoflagellate cysts have been recovered from mud-rich shelfal topsets and underlying mud-rich slope fan systems in the interval 2610’ to 6495’, while the basal sand-rich base-of-slope fans in the interval 6705’ to 7905’ were barren of palynomorphs. A dinoflagellate biozonation is not yet proposed based on analyses of one well and cursory examination of the appraisal well. The correlation potential of the FDO’s reported for this well needs to be confirmed in follow-up wells along the Northern Borneo offshore.

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