Kuk Swamp lies at around 1580 m altitude in the upper Wahgi Valley, a large intermontane basin between the Sepik-Wahgi Divide to the north and the Kubor Range to the south, both of which rise to 4000 m or more above sea level. Today the basin is largely drained by the east-flowing Wahgi River, but formerly the western part drained westwards. This drainage was reversed with the damming of the valley by a massive volcanic debris avalanche from the MtÂ Hagen stratovolcano, which today dominates the western end of the basin, rising about 2000 m above the surrounding landscape (LÃ¶ffler 1977:Â 26â€“27, 73; Pain et al. 1987). The avalanche responsible for this blockage occurred at least 80â€“100,000 and possibly 400,000 years ago (Pain et al. 1987:Â 275).
|Title of host publication||Ten Thousand Years of Cultivation at Kuk Swamp in the Highlands of Papua New Guinea (Terra Australis 46)|
|Editors||J. Golson, T. Denham, P. Hughes, P. Swadling and J. Muke|
|Place of Publication||Canberra|
|Publication status||Published - 2017|