Journal article

Tectonism and eustasy across a Late Miocene strandplain: The Loxton-Parilla Sands, Murray Basin, southeastern Australia

John A Miranda, Malcolm W Wallace, Sandra McLaren



Sediments of the Loxton-Parilla Sands form a progradational strandplain that stretches for over 350 km across the Murray Basin, in southeastern Australia. The strandplain comprises over 600 individual ridges, with stratigraphic and strontium isotope data indicating these strandlines are Late Miocene to Early Pliocene in age, with deposition beginning before 7.2 Ma and terminating at approximately 5.0 Ma. Post-Pliocene uplift along the Padthaway High due to regional, compressive, intraplate tectonism, was responsible for altering the orientation of strandlines and drainage systems, as well as contributing to increased erosion across the strandplain. This uplift both restricted and starved the..

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Awarded by Australian Research Council Discovery

Funding Acknowledgements

We would like to acknowledge Peir K. Pufahl and Colin V. Murray-Wallace for their critical and constructive reviews which have helped to strengthen and improve the quality of this manuscript. We would also like to acknowledge the assistance of Dr. Tom Darragh and staff at the Museum of Victoria for access to fossils samples from the Mallee Bores. Similarly, we acknowledge the assistance of Geoscience Victoria and Geoscience Australia for providing access to drill cores and sampling of material from the Horsham Bores. JM acknowledges the financial support from the David Hay Memorial fund during the preparation of this manuscript. Research was supported by Australian Research Council Discovery Grant DP0558705.