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RST Apology to Tasmanian Aboriginal people 2021.

The significance and provenance of stromatolitic clasts in a probable Late Precambrian diamictite in north-western Tasmania

Papers & Reports

Summary

Two types of stromatolitic dolomite boulders occur in a diamictite of possibly late Precambrian age in northwestern Tasmania; they are the oldest Tasmanian fossils so far recorded. The first type comprises dark grey dolomites containing the stromatolite Baicalia cf. B. burra, generally well preserved. The remainder are pale grey rather recrystallised dolomites containing stratiform and columnar-layered stromatolites.
Their diagenesis and intrusion by dolomite veins preceded the erosion and redeposition of the clasts into the diamictite. The diamictite contains no diagnostic evidence of glaciation though a glacial origin cannot be definitely excluded. A debris flow mechanism of deposition is favoured. There is no proof in the material examined that either the well preserved Baicalia specimens or the recrystallised stromatolitic dolomites, occurring in clasts in the diamictite, were derived from the Smithton Dolomite. The occurrence of Baicalia cf. B. burra is consistent with a late Precambrian age of the source rocks, and close comparisons can be made with the Skillogalee Dolomite of South Australia.

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.