One of the features of the unique Aouk Underground River is a giant sinkhole – Kuom Tiankeng.
Map of the site
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This giant hole in the Arfak Mountains was formed when the ceiling of a cave above the Aouk Underground River collapsed. This hole is more than 700 m long and some 160 m wide, its walls are some 100 – 160 m high. Area of the sinkhole is approximately 144,000 m2, volume – approximately 15 – 20 million m3.
Its size exceeds 100 m and also the depth exceeds 100 m – thus this sinkhole can be considered to be a true tiankeng.
The bottom of Kuom tiankeng is traversed by the stream of Aouk with a discharge of 50 m3/s. From the east, it receives Beir Aouk passage (some 1,950 m long) with Aouk stream. From the south also comes another powerful spring – most likely another submerged stream. Aouk leaves the Kuom towards the west through the 300 m long Kuom passage.
- Papua 2017 Aouk Underground River – Acheloos Geo Exploring, Petzl. Accessed in 14 January, 2019
- Andrea Benassi e Ivan Vicenzi, Papua 2017 Aouk Underground River – Acheloos Geo Exploring, cronache ipogee. Accessed in 16 January, 2019
- Il Tiankeng dell’Aouk, Speleologia Casolana. Accessed in 16 January, 2019
- Graham Mullan, News: Exploring Large River Caves in West Papua, Darkness Below. Accessed in 16 January, 2019
Kuom Tiankeng is included in the following article:
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