Pan Gnammas (Weathering Pits) across Australia: Morphology in Response to Formative Processes

نویسندگان

چکیده

Pan gnammas occur across Australia, mainly in granites and sandstones. Their morphology origins on Eyre Peninsula, South Australia are known, but this Twidale model is not applicable everywhere. I investigated their theorized at eight sites the continent, noting particularly edge profiles, floors depths relation to geological placement. The steep sides, flat floors, up about 25 cm laminated apply only hot climates of Western Australia. Laminations rare Victorian granites, so pan have sloped edges as deep (ca. 10 cm) granitic uplands southeast Queensland, corrosion concentrated a narrow zone most ca. 5 deep. Gnammas horizontal sandstones New Wales Queensland or sloping reach ca dipping Grampians, Victoria horizontality has produced visors edges. vertically bedded Uluru enabled deeper pans different morphology. Regional depth variation biological consequences.

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ژورنال

عنوان ژورنال: International Journal of Geosciences

سال: 2021

ISSN: ['2156-8367', '2156-8359']

DOI: https://doi.org/10.4236/ijg.2021.1210051