A regional review and new insights into SE Asian Cenozoic coal-bearing sediments: Why does Indonesia have such extensive coal deposits?

Friederich, Mike C.; Moore, Tim A.; Flores, Romeo M.

doi:10.1016/j.coal.2016.06.013

Cited by 41 publications

(47 citation statements)

References 81 publications

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“…All these formations were uplifted, folded and faulted due to the Pliocene-Pleistocene orogeny [20] associated with volcanic activity ( Figure 2C,D). Fossil resins from Jambi Province occur in immature coal layers (lignite beds) [22].…”

Section: Geological Settingsmentioning

confidence: 99%

Fossilization History of Fossil Resin from Jambi Province (Sumatra, Indonesia) Based on Physico-Chemical Studies

Naglik¹,

Kosmowska-Ceranowicz

Natkaniec‐Nowak

et al. 2018

Minerals

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A unique specimen of fossil resin originating from the Dipterocarpaceae tree family found in Miocene brown coal deposits in Jambi Province (Sumatra, Indonesia) was investigated via microscopic observations, microhardness testing and infrared and Raman spectroscopic methods. Its form is rare in nature, being an aggregate of three varieties of resin differing in colour, transparency and internal structure. This suggests the formation of the resins at different stages. Further alteration processes, including fossilization and maturation of the resin in a swamp environment resulted in stepwise aromatization of the cyclohexane ring in steroids and cross-linking through formation of ester bonds as well as carbon-carbon bonds between steroid molecules. The various environmental and geological conditions affecting the formation processes of the resins were recorded in their physico-chemical properties. Additionally, heating conditions accelerated by volcanism were proposed as a factor determining the maturation grade of the resin.

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Section: Geological Settingsmentioning

confidence: 99%

Fossilization History of Fossil Resin from Jambi Province (Sumatra, Indonesia) Based on Physico-Chemical Studies

Naglik¹,

Kosmowska-Ceranowicz

Natkaniec‐Nowak

et al. 2018

Minerals

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“…Rank of the coals, in general, depends largely on the geological age (Belkin et al, 2009;Thomas, 2012;Daulay, Santoso and Ningrum, 2015;Santoso, 2015;Friederich, Moore and Flores, 2016). Reflectance measurements on the coals indicate that there is a substantial difference in rank between Palaeogene and Neogene coals ( Table 2).…”

Section: B Rankmentioning

confidence: 99%

“…Coal type is related to the type of plant material in the peat and the extent of its biochemical and chemical alteration. It is a response to the first (biochemical) stage of coalification (Belkin et al, 2009;Thomas, 2012;Daulay, Santoso and Ningrum, 2015;Santoso, 2015;Susilawati et al, 2015;Friederich, Moore and Flores, 2016).…”

Section: Introductionmentioning

confidence: 99%

Factors controlling petrographic composition of neogene Tenggarong coals-Kutai basin-East Kalimantan

Santoso¹

2017

IMJ

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Petrographic composition of the Neogene Tenggarong coals in the Kutai Basin-East Kalimantan indicates its geological setting. The aim of this study is to obtain an understanding of the geologic aspects controlling the petrographic composition of the coals.Variation of type and rank in the coals was determined by petrographic examination of twenty-two samples. The coals are absolutely dominated by vitrinite, common liptinite and rare inertinite and mineral matter. Vitrinite macerals are dominated by detrovitrinite and telovitrinite. Cutinite and resinite are the dominant liptinite macerals in the coals. The inertinite macerals include semifusinite, inertodetrinite and sclerotinite. Clay and pyrite are the dominant mineral matters in the coals. The type differences largely reflect climatic influence and differences in peat conditions. Rank of the coals, in general, depends largely on the stratigraphic position. Reflectance measurements on the coals indicate that there is a slightly difference in rank. The coals are sub-bituminous rank (Rvmax of 0.40-0.47%). The change in vitrinite reflectance of the coals is due to the thicker cover/overburden on the high rank coals. Nevertheless, the vitrinite reflectance is higher in some coals in the Loa Kulu area (Rvmax of 0.48-0.57%) due to its stratigraphic position that is at the bottom of the sequence. The type and rank characteristics of the coals clearly influence the utilization. The coals are suited to utilize for direct combustion and therefore, the major utilization potential would be for power generation.

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“…The Barito Basin is one of the main coal-bearing deposits basins which is generally spread in the eastern part of Kalimantan Island (Friederich and van Leeuwen, 2017). In general, coal in the Basin in Kalimantan is divided into two namely Paleogene and Neogen Coal (Friederich et al, 2016;Friederich and van Leeuwen, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Eocene bituminous coal is spread in the sedimentary basin in the southeastern part of Kalimantan Island (especially Barito Basin and Upper Kutai sub-basin), and some in the western part of Kalimantan Island. Eocene bituminous coal typically has low to the moderate ash yield of lesser or equal to 10% in the Upper Kutai Sub-Basin and reaches more than 15% in the southeastern part of Borneo, as well as with varying sulfur content (Friederich et al, 2016;Friederich and van Leeuwen, 2017). Meanwhile, Neogen coal generally has low ash and sulfur content.…”

Section: Introductionmentioning

confidence: 99%

Total Sulfur and Ash Yield of Tanjung Formation Coal in Sekako, Barito Basin, Central Kalimantan: Implication of Depositional Process

et al. 2019

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Tanjung Formation is one of the major coal-bearing deposit in the Barito Basin, Central Kalimantan. The distribution of total sulfur and ash yield in coal is closely related to the depositional environment. This study was to determine the total sulfur and ash yield and the interpretation of the dynamics of depositional process. Coal seam A and B generally have low to medium ash yield 2.82 to 9.23 (wt.%, db) and low total sulfur content of <1 (wt.%, db), except for the 6PLY1 coal sample which has total sulfur content that relatively high at 1.55 (wt.%, db). Coal samples 5PLY1A, 5PLY1B, 5PLY3, 5PLY5, 6PLY2, 6PLY4, 6PLY5, 6PLY7, and 6PLY9 which have low to medium ash yield and low total sulfur content <1% (wt.%, db) are formed in the topogeneous mire (freshwater swamp) in a fluvial environment. The total sulfur content was interpreted to be derived mainly from the parent plant materials. Meanwhile, the 6PLY1 coal sample which has an ash yield of 5.83 (wt.%, db) and total sulfur content of 1.55 (wt.%, db) formed in topogeneous mire in an environment that is invaded by sea water, and the total sulfur content were interpreted coming from the parent plant materials and the effect of seawater invasion which is rich in sulfate (SO4) compounds. It is also supported by the occurrence of syngenetic mineral content (framboidal pyrite) and epigenetic pyrite of 1.23 (vol.%).

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A regional review and new insights into SE Asian Cenozoic coal-bearing sediments: Why does Indonesia have such extensive coal deposits?

Cited by 41 publications

References 81 publications

Fossilization History of Fossil Resin from Jambi Province (Sumatra, Indonesia) Based on Physico-Chemical Studies

Fossilization History of Fossil Resin from Jambi Province (Sumatra, Indonesia) Based on Physico-Chemical Studies

Factors controlling petrographic composition of neogene Tenggarong coals-Kutai basin-East Kalimantan

Total Sulfur and Ash Yield of Tanjung Formation Coal in Sekako, Barito Basin, Central Kalimantan: Implication of Depositional Process

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