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The South Palembang Sub basin in the southern part of the South Sumatra Basin is an important area for coal and oil production In order to develop the economy of this region an understanding of…
·The andesitic intrusion close to the Tertiary coal seams in Tanjung Enim area in South Sumatra Basin Indonesia has caused some significant changes of petrographic and chemical coal properties The rank of the coals increases from sub bituminous and high volatile bituminous to medium low volatile bituminous and even anthracite and meta anthracite
·Based on analyses of the lithofacies palaeogeography of the Taiyuan and the Shanxi Formations in the Qinshui Basin the spatial variations of the coal seam thickness coal maceral composition coal quality and gas content together with the lithofacies of the surrounding rocks in each palaeogeographic unit were investigated The results show that the thick coals of
·The Orzesze 1 exploratory well with a depth of 3708 m TVD was drilled in 2019 2020 in the depocentre of the Upper Silesian Coal Basin USCB The methane content in the coal seams has been tested to a depth of 2840 m and the sorption capacity of the coal to a depth of 2576 m These are the deepest measurements in the USCB so far
·Kutai Basin is known as one of the most prolific sedimentary coal basins in Indonesia Coal bearing sequence in Kutai Basin is mainly Miocene to Eocene in age in which the coal seams are mostly in
·The Kutai Basin can be divided into two sub basins; a western Inner or Upper Kutai Basin and an eastern Outer or Lower Kutai Basin Fig 1 Today the Upper Kutai Basin is an area of major tectonic uplift as a result of Lower Miocene inversion of Paleogene depocenters and the effects of subsequent erosion Moss and Chambers 1999
PDF On Jan 1 2000 Koesoemadinata published Tectono stratigraphic framework of Tertiary coal deposits of Indonesia Southeast Asia Coal Geology Conference Find read and cite all the
·Indonesia s thermal coal export is expected to dip in 2024 amid moderate global demand and a supply glut The country s coal exports declined in value more than 15 percent from 2022 to US$59
The Sangatta coal seam which contains high volatile bituminous coal and is the most important seam in the Sangatta Coalfield was deposited within a Late Middle Miocene fluvial system that occupied the northern Kutei Basin Indonesia A study of clastic sedimentology coal petrology of standard and etched coal samples thickness and coal quality parameters integrated with a
·Indonesia has become the world s largest exporter of thermal coal and is a major supplier to the Asian coal market particularly as the People s Republic of China is now 2007 and perhaps may
·Indonesia has been recognized to have at least eleven onshore coal basins with a considerable amount of CBM resources Studies on deep coal seams >300 m suggested that the country may possess
·The Kutai Basin is one of the few Indonesian basins that has evolved from a rift basin/foreland basin to a marginal sag basin Much of the early basin fill in the Kutai Basin has been inverted and exposed Moss et al 1997; Satyana et al 1999 Since the Middle Miocene a major deltaic sequence located on the passive margin prograded into the deep water basin of
·The Barito Pasir and Tarakan Basins in Kalimantan Island is the most extensive coal bearing sedimentary basin in Indonesia mined since 1989 The coal is notable in having high sulfur coal content exceeding >10% in some cases contributed by the presence of pyrite The latter issue contributed to interest in the coal forming economic
Kutai Basin is known as one of the most prolific sedimentary coal basins in Indonesia Coal bearing sequence in Kutai Basin is mainly Miocene to Eocene in age in which the coal seams are mostly in
The South Sumatra basin is among the most important coal producing basins in Indonesia Results of an organic petrography study on coals from Tanjung Enim South Sumatra Basin are reported The studied low rank coals have a mean random huminite reflectance between % and % and are dominated by huminite vol % Less abundant
·Coal with a sulfur content of more than 3% are referred to as coal with high sulfur content [2 5 7 8 [16][17][18] but in general the sulfur content in coal that is often found is around % 5%
·Indonesia coal reserves accounted for % of total world reserves BP 2018 Indonesia coal resources and reserves are dominated by low and medium quality coal In September 2018 MEMR announced an increase in resources and reserves to 166 and 37 billion tons Oktaviani 2018 Most of Indonesia coal are located at
·Chronostratigraphy of Indonesian petroliferous basins showing stages background tectonics and geodynamic events Seafloor spreading events and continental collisions are from Longley 1997
·Coal samples collected from the Air Laya Mine Muara Enim Formation and South Sumatra Basin were analyzed for their organic geochemical characteristics using extraction fractionation and compound identification methodsusing gas chromatography mass spectrometer GC MS instruments
·The world s top exporter of thermal coal is on track to smash last year s record sales after projected shipments for the first two months of 2024 jumped nearly 25% from the same period in 2023
·Indonesia is an archipelago of more than 17 000 islands that stretches astride the equator for about 5200 km in southeast Asia Fig 1 and includes major Cenozoic volcano plutonic arcs active volcanoes and various related onshore and offshore magmatic arcs have extensive Cu and Au mineralization that has generated much exploration and
The regional tectonic setting and Tertiary stratigraphy of W Indonesian basins suggest that they are similar in stratigraphic successions sedimentation history and structural development
·Economic coal deposits are mainly restricted to the major basins of Sumatra and Eastern Kalimantan but rift deposits containing thin coal seams occur in Western Sulawesi and Southwest Java Fig 1 Maximum peat deposition occurred during warm and wet periods the most favourable climatic conditions for peat swamp development and the
