UWA-based researcher and DHSC CI Dr Mick O’Leary has been busy testing our hypothesis that the stone tools located on the seabed of Murujuga Sea Country remain relatively stable over time, despite strong tidal currents in the archipelago.
Observations by DHSC scientific divers led to our appraisal of stability on the seabed. A series of artefacts were tested at various orientations under different current velocities to see if they would remain in situ or would be subject to transportation under high velocity current flow.
Stay tuned for more scientific data and analysis in the coming months while we prepare this exciting information for publication!
We report Australia’s first confirmed ancient underwater archaeological sites from the continental shelf, located off the Murujuga coastline in north-western Australia. Details on two underwater sites are reported: Cape Bruguieres, comprising > 260 recorded lithic artefacts at depths down to −2.4 m below sea level, and Flying Foam Passage where the find spot is associated with a submerged freshwater spring at −14 m.
The DHSC project team recognises the Murujuga Aboriginal Corporation Council of Elders and Murujuga Land and Sea Rangers Unit as core collaborators on this project.
The DHSC project was supported by the Australian Research Council, Flinders University and the Hackett Foundation. We thank our many colleagues, volunteers, and friends of the project including Ken Mulvaney, Shakti Chakravarty, Victoria Anderson, Sarah de Koning, Hiro Yoshida, Kerry Ludwig, Mads Holst, Sam Wright, Annette George, Tom Allardyce and Graham and Michelle Evans and the AustMarine staff for their support throughout the DHSC project. Further thanks to EGS Surveys and the Pilbara Ports Authority for supplying additional survey data.
Link to the full article published in the Public Libarary of Science (PLOS ONE):