Stream response to Quaternary climate change: evidence from the Shoalhaven River catchment, southeastern highlands, temperate Australia
Nott, Jonathan, Price, David, and Nanson, Gerald (2002) Stream response to Quaternary climate change: evidence from the Shoalhaven River catchment, southeastern highlands, temperate Australia. Quaternary Science Reviews, 21 (8-9). pp. 965-975.
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Luminescence ages from a flight of four paired alluvial terraces in the upper catchment of the Shoalhaven River, southeast highlands, Australia, provide a record of stream behaviour throughout the late Quaternary. Ages ranging from 7 ka in the modern floodplain to nearly 500 ka for the uppermost dated terrace allow comparisons to be made of the response of streams throughout southeastern Australian to late Quaternary climatic perturbations. The alluvial record of the Shoalhaven River highlights the broad regional synchronicity of episodes of heightened fluvial activity during Oxygen Isotope Stage (OIS) 5 (terminating not, vert, similar75 ka), 60–not, vert, similar40, 30–25 and 20–15 ka. The Shoalhaven record also shows an absence of fluvial activity during the Last Glacial Maximum suggesting that southeastern Australia was most likely dry at this time as compared to northern Australia which was probably wet. Fluvial activity, while still significant, decreased substantially after approximately 60 ka suggesting a general drying of climate towards the present.
|Item Type:||Article (Refereed Research - C1)|
|Keywords:||alluvial record; fluvial activity; Quaternary climate change; Shoalhaven River catchment; stream behaviour|
|FoR Codes:||05 ENVIRONMENTAL SCIENCES > 0503 Soil Sciences > 050399 Soil Sciences not elsewhere classified @ 100%|
|SEO Codes:||96 ENVIRONMENT > 9699 Other Environment > 969999 Environment not elsewhere classified @ 100%|
|Deposited On:||11 Jun 2009 14:04|
|Last Modified:||18 Oct 2013 00:36|
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