Contribution of geochemistry to the exploration in the Bintuni basin, Irian Jaya

Carbonate drowning successions of the Bird’s Head, Indonesia

“…In the eastern Bintuni Basin, evidence from the Aroba, Jamusura and Besiri River wells (Rossetter 1976) indicates that termination of Kais platform growth occurred in the Middle Miocene (Pigram et al 1982). However, this diachroneity is also shown in the western Bintuni Basin where the Kais Formation is indicated as continuing into the Late Miocene (Koesoemadinata 1976;Collins 1977;Chevallier and Bordenave 1986;Dolan and Hermany 1988). In the Bintuni Basin, diachroneity is interpreted to occur as subsidence migrated westwards away from the developing LFTB (Collins 1977).…”

“…It is interpreted to have formed as a fore-deep in the late Cenozoic (Chevallier and Bordenave 1986) when the former shallow-marine NGLG platform was rapidly deepened as a result of collision between the Bird's Head microcontinent with the Australian continent along a short-lived east-facing subduction zone (Pigram et al 1982).…”

“…1) are built on continental crust of either the northern promontory (Sula Spur) of the Australian plate (Redmond and Koesoemadinata 1976;Chevallier and Bordenave 1986;Gibson-Robinson and Soedirdja 1986;Phoa and Samuel 1986;Charlton 1996), or a small microcontinent comprising the Bird's Head (Pigram et al 1982;Dow and Hartono 1982;Pigram and Panggabean 1984;Pigram and Davies 1987;Struckmeyer et al 1993;Puntodewo et al 1994;Hall 2002;Wilson 2006;Tikku et al 2006).…”

The effect of meteoric phreatic diagenesis and spring sapping on the formation of submarine collapse structures in the Biak Basin, Eastern Indonesia

“…The results of the bulk-rock stable isotope analyses allowed palaeothermometry calculations to determine temperatures at which the cements precipitated. A geothermal gradient of 3°C/100m was calculated from bottom-hole temperatures in the similar Salawati (Redmond and Koesoemadinata, 1976), Bintuni (Chevallier and Bordenave, 1986), and North Irian (McAdoo and Haebig, 1999) regional basins was used to convert temperature to depth.…”

The Variation of Trace Elements in Steenkool Coal Formation, Bintuni Basin, West Papua, Indonesia

“…The Steenkool Formation is a coal bearing formation of Miocene to Pliocene age with a total thickness of about 500 m; consisting of coal, siltstone, sandstone, conglomerate. Steenkool formations are deposited in delta environments [6,7].…”