The Glaciation of the South-East Asian Equatorial Region

Michael Lanman Prentice, Geoffrey Hope, J A Peterson, Timothy Barrows

    Research output: Contribution to journalArticle

    Abstract

    This chapter presents estimates of likely glaciation extents across equatorial southeast Asia based on the Shuttle Radar Topography Mission digital elevation model and also discusses new evidence for multiple glaciations. Mt. Kinabalu in Malaysia has an area of 19.3 km2 higher than 3000 m above sea level (asl) but maximum glacier extent is closer to 5.5 km2. At least 3000 km2 of Papua, Indonesia, and 400 km2 of Papua New Guinea (PNG) rise above 3600 m asl. These areas represent rough glaciation extents because the late Pleistocene glacial snowline was broadly at 3600 m asl.On Mt Giluwe, PNG, small frontal moraines overlie large down-valley lateral moraines indicating a recent advance of relatively thick ice over an older glacial landscape. The small moraines appear to date to Marine Isotope Stages (MIS) 4 and 2. The large downvalley moraines on Mt. Giluwe are old with boulder exposure ages that date to MIS 6-7. North of Mount Trikora, Papua, cross-cutting moraines suggest at least two major glacial advances. Five boulders spread across an up-valley moraine have cosmogenic exposure ages that postdate the last glaciation. Boulders on downvalley moraines exhibit a range of older exposure ages, four dating to the last glaciations.
    Original languageEnglish
    Pages (from-to)1023-1036
    JournalDevelopments in Quaternary Science
    Volume15
    DOIs
    Publication statusPublished - 2011

    Fingerprint Dive into the research topics of 'The Glaciation of the South-East Asian Equatorial Region'. Together they form a unique fingerprint.

    Cite this