Stratigraphy and sediment provenance, Barito Basin, southeast Kalimantan

Witts, Duncan; Hall, Robert; Morley, Robert J.; BouDagher‐Fadel, Marcelle K.

doi:10.29118/ipa.1894.11.g.054

Cited by 15 publications

(12 citation statements)

References 33 publications

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“…The Barito Basin is located to the south of the Schwaner Mountains. The Eocene (Bartonian)‐Lower Oligocene (Rupelian) terrestrial Tanjung Formation represents the base of the Barito Basin and is overlain by the transgressive fluviodeltaic to shallow marine sediments of Late Oligocene to present age (Witts et al, , ).…”

Section: Geologic Settingmentioning

confidence: 99%

“…The Meratus Complex is interpreted as a Cretaceous subduction complex, which forms the suture between SW Borneo and the Paternoster microcontinental fragment (see section 2.2.4; Hall, ; Hall, Clements, & Smyth, ; Parkinson et al, ; Wakita et al, ). It is unconformably covered by the Upper Eocene (Bartonian)‐Lower Oligocene (Rupelian) Tanjung Formation (Witts et al, , ).…”

Section: Geologic Settingmentioning

confidence: 99%

See 1 more Smart Citation

Cenozoic Rotation History of Borneo and Sundaland, SE Asia Revealed by Paleomagnetism, Seismic Tomography, and Kinematic Reconstruction

Advokaat

Marshall

et al. 2018

Tectonics

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SE Asia comprises a heterogeneous assemblage of fragments derived from Cathaysia (Eurasia) in the north and Gondwana in the south, separated by suture zones representing closed former ocean basins. The western part of the region comprises Sundaland, which was formed by Late Permian‐Triassic amalgamation of continental and arc fragments now found in Indochina, the Thai Penisula, Peninsular Malaysia, and Sumatra. On Borneo, the Kuching Zone formed the eastern margin of Sundaland since the Triassic. To the SE of the Kuching Zone, the Gondwana‐derived continental fragments of SW Borneo and East Kalimantan accreted in the Cretaceous. South China‐derived fragments accreted to north of the Kuching Zone in the Miocene. Deciphering this complex geodynamic history of SE Asia requires restoration of its deformation history, but quantitative constraints are often sparse. Paleomagnetism may provide such constraints. Previous paleomagnetic studies demonstrated that Sundaland and fragments in Borneo underwent vertical axis rotations since the Cretaceous. We provide new paleomagnetic data from Eocene‐Miocene sedimentary rocks in the Kutai Basin, east Borneo, and critically reevaluate the published database, omitting sites that do not pass widely used, up‐to‐date reliability criteria. We use the resulting database to develop an updated kinematic restoration. We test the regional or local nature of paleomagnetic rotations against fits between the restored orientation of the Sunda Trench and seismic tomography images of the associated slabs. Paleomagnetic data and mantle tomography of the Sunda slab indicate that Sundaland did not experience significant vertical axis rotations since the Late Jurassic. Paleomagnetic data show that Borneo underwent a ~35° counterclockwise rotation constrained to the Late Eocene and an additional ~10° counterclockwise rotation since the Early Miocene. How this rotation was accommodated relative to Sundaland is enigmatic but likely involved distributed extension in the West Java Sea between Borneo and Sumatra. This Late Eocene‐Early Oligocene rotation is contemporaneous with and may have been driven by a marked change in motion of Australia relative to Eurasia, from eastward to northward, which also has led to the initiation of subduction along the eastern Sunda trench and the proto‐South China Sea to the south and north of Borneo, respectively.

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Section: Geologic Settingmentioning

confidence: 99%

Section: Geologic Settingmentioning

confidence: 99%

Cenozoic Rotation History of Borneo and Sundaland, SE Asia Revealed by Paleomagnetism, Seismic Tomography, and Kinematic Reconstruction

Advokaat

Marshall

et al. 2018

Tectonics

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“…All these areas are still largely undeformed with the exception of SE Borneo where the narrow and elongate Meratus mountains ridge (Fig. 9), which represents a reactivated Cretaceous suture, probably rose between the Late Miocene and Pleistocene (Witts et al, 2011;Witts, 2012).…”

Section: Sundalandmentioning

confidence: 99%

The palaeogeography of Sundaland and Wallacea since the Late Jurassic

2013

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“…The coal-bearing sedimentary rocks thicken to the east towards the Meratus Range, whereas the coal seams have significant variation in thickness, ranging from 0.5 m to ~50 m. This formation has a total thickness of sediments of up to several thousands of meters [9], was deposited in a shallow marine to fluvio-deltaic environment [26], and comprises the syn-inversion sequence of the basin [9]. The Meratus uplift continued from the Pliocene through the Plio-Pleistocene [7,10] and resulted in the deposition of polymict alluvial, shallow marine sediment and tectonic molasse of the Dahor Formation, which comprise the syn-inversion sequence of the basin [25,26]. The Dahor Formation consists mostly of reddish sandstone, polymict conglomerate and siltstone with an indication of kaolinitic features.…”

Section: Geology Of Barito Basinmentioning

confidence: 99%

“…Following a phase of regression in the Middle Oligocene, as the marine influence increased, the extensive shallow water platform carbonates of the Berai Formation were deposited from the Late Oligocene through the Early Miocene [7,24,26]. Carbonate development in the Barito Basin ceased in the Early Miocene coinciding with an increase in pro-deltaic clastic input from the west [7,24].…”

Section: Geology Of Barito Basinmentioning

confidence: 99%

Tectonics and Geological Factors Controlling Cleat Development in the Barito Basin, Indonesia

Sapiie

Rifiyanto

2017

J. Eng. Technol. Sci.

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Abstract. Cleats are natural fractures within coal seams. This paper presents the results of regional cleat mapping and characterization in relation to coalbed methane (CBM) exploration and development in the Barito Basin, South Kalimantan, Indonesia involving two major coal layers, namely the Late Eocene Tanjung Formation and Early to Middle Miocene Warukin Formation with thicknesses ranging from 2 to 50 m. The coal is classified as lignite to subbituminous with calorific values ranging from 6000-8000 Cal/gr with ash content 0.68-17.42%. We applied two methods of cleat measurement, i.e. scanline and window sampling using a 100 x 100 cm grid. More than 20,000 cleats were measured from 65 scanline and 37 window sampling locations. The results revealed that face and butt cleats are predominantly oriented in the WNW-ESE and NNE-SSW directions, respectively. The results showed that cleat density increases related to structural position such as fold hinge and fault zone. The formation of the cleats may be influenced by several geological processes, where the cleats, which form during coalification, are superimposed by later processes such as fluid pressure and tectonic stresses and are seemingly also affected by the composition of the coal.

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Stratigraphy and sediment provenance, Barito Basin, southeast Kalimantan

Cited by 15 publications

References 33 publications

Cenozoic Rotation History of Borneo and Sundaland, SE Asia Revealed by Paleomagnetism, Seismic Tomography, and Kinematic Reconstruction

Cenozoic Rotation History of Borneo and Sundaland, SE Asia Revealed by Paleomagnetism, Seismic Tomography, and Kinematic Reconstruction

The palaeogeography of Sundaland and Wallacea since the Late Jurassic

Tectonics and Geological Factors Controlling Cleat Development in the Barito Basin, Indonesia

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