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RST Apology to Tasmanian Aboriginal people 2021.

Late Holocene landscape evolution in the Dazzler Range: new evidence

Papers & Reports

Summary

Radiocarbon dating of a wood sample from the upper part of a sequence of coarse fluvial gravels at Branchs Creek has confirmed that accumulation of coarse fluvial gravels continued into the late Mid Holocene, prior to an influx of up to 3 m of sand during the last two millenia. Ongoing erosion at Branchs Creek has revealed that clay previously interpreted as a separate unit beneath the gravels is merely a clay lens and that the gravel/clay sequence is over 3.5 m thick. Investigation ofa site at Saxons Creek, at the southern end of the Dazzler Range, has revealed a similar stratigraphy and confirms widespread catchment instability during the Mid to Late Holocene. The upper gravels are again rich in logs and smaller wood fragments, and two samples have returned radiocarbon ages of -4.1 and 2.2 ka BP. At least 3 m of sand has accumulated since deposition of the gravels ceased, with at least 1 m of sand deposited over the last several centuries. As at Branchs Creek and elsewhere in the Dazzler Range, pronounced incision into alluvial sediments has been triggered by artificial straightening of the Saxons Creek channel.

 

Keywords:

Royal Society of Tasmania, RST, Van Diemens Land, natural history, science, ecology, taxonomy, botany, zoology, geology, geography, papers & proceedings, Australia, UTAS Library

Acknowledgement of Country

The Royal Society of Tasmania acknowledges, with deep respect, the traditional owners of this land, and the ongoing custodianship of the Aboriginal people of Tasmania. The Society pays respect to Elders past, present and emerging. We acknowledge that Tasmanian Aboriginal Peoples have survived severe and unjust impacts resulting from invasion and dispossession of their Country. As an institution dedicated to the advancement of knowledge, the Royal Society of Tasmania recognises Aboriginal cultural knowledge and practices and seeks to respect and honour these traditions and the deep understanding they represent.

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On 15 February 2021, the Royal Society of Tasmania offered a formal Apology to the Tasmanian Aboriginal people.