A new depositional and provenance model for the Tanjung Formation, Barito Basin, SE Kalimantan, Indonesia

Cenozoic ecological history of South East Asian peat mires based on the comparison of coals with present day and Late Quaternary peats

“…Coals of Late Eocene age have been examined from the Tanjung formation in southeast Kalimantan (Dettmann and Playford, unpublished report; Witts et al, 2012), from the latest Eocene of the Mangkalihat peninsula (Morley, 2000), and from the Yaw formation of Myanmar (Potonie, 1960). The Tanjung coal studied by Dettmann and Playford (unpublished report) was 7 m thick, with the seam base accumulating in a wholly freshwater setting, but with brackish influence being present in the upper part, and with peat accumulation presumably ceasing due to marine transgression.…”

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

“…For example, Witts et al (2012) and Friederich et al (1999;1995) have described basal coarse-grained units with quite variable thickness in the Barito and Pasir basins, respectively (Fig. 1).…”

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

“…In the Middle Eocene [5,11,24,25], the Barito Basin received rift sediments eroded from the Paleocene horsts [7,9,19], which form the clastic sedimentary rocks of the Tanjung Formation. The Tanjung Formation is widely exposed in the northern part of the Barito Basin and along the western flank of the Meratus Range.…”

“…To the south, the border is less distinct, and seems to be extended and narrowed to the south into the Java Sea [7][8][9][10][11] because no structural features or lithofacies changes can be observed.…”