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2025 PESA WEBINAR SERIES: New Insights into Depositional Modelling of the Permian Kingia Sandstone in the Perth Basin Using Ichnology (Fiona Burns)

Kindly supported by Rock Flow dynamics 
This live webinar will take place at:
11am | Perth
12.30pm | Darwin
1pm | Brisbane
1:30pm | Adelaide
2pm | Canberra, Hobart, Melbourne, Sydney
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New Insights into Depositional Modelling of the Permian Kingia Sandstone in the Perth Basin Using Ichnology
Presented by Dr Fiona Burns (Task Fronterra)
Abstract
Historically, sedimentological interpretations of the Kingia Sandstone in the northern Perth Basin have relied heavily upon conventional sedimentary facies analysis of a limited dataset integrating core with well-log data. This paper however provides invaluable insights into the high-resolution depositional modelling of the Kingia Sandstone using sedimentary facies analysis integrated with detailed ichnological studies. Historic cored wells have also been re-evaluated utilising an ichnological approach, while newly released cored wells have been interpreted, also using this integrated approach. Cores from a variety of wells including but not limited to West Erreguella-4, South Erreguella-1, Mountain Bridge-1, Corybas-1, Waitsia-1, Waitsia-2 and Waitsia-3 have been included in this study.
The results allow the subdivision of the Kinga Sandstone into numerous sub-environments reflecting marginal to fully marine sub-environments. The Kinga sandstone is interpreted to represent deposition in a wave-dominated deltaic system, with trace-fossil assemblages key to the evaluation of stress levels (e.g. freshwater dilution) in the system. Local sharp-based shoreface packages, abruptly overlying shelfal deposits, are interpreted to represent forced regressive events during overall highstand progradation of the Kingia shoreface system.

