Author： Spenceley A. P.
Publisher： Taylor & Francis Ltd
ISSN： 0812-0099
Source： Australian Journal of Earth Sciences, Vol.48, Iss.6, 2001-12, pp. : 777-784
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Abstract
Evidence for glacial erosion of competent intrusive igneous rock is described for sites at Quart Pot Creek, Stanthorpe, Queensland. The bedrock, comprising the Stanthorpe Adamellite, was emplaced during the Early‐Middle Triassic. It is argued that the pluton was exposed during the late Middle ‐ Late Triassic and subjected to glacial erosion at that time. This was consequent to the rapid uplift and denudation of the landscape, which accompanied the Hunter‐Bowen Orogeny. Burial of the eroded surface occurred most probably during that ice age and a subsequent period of subsidence. The ancient surface has been exhumed during more recent denudation. It is suggested that during the late Middle ‐ Late Triassic, climatic conditions remained cold enough over this part of southeastern Australia at least for valley glaciers to form and influence landscape development.
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