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POSTPONED -PESA Sedimentology and Stratigraphy Interest Group 3rd Meeting
Friday, 3 April @ 1:00 pm - 5:00 pm (Australia/Perth time)$10
Postponed until further notice.
This event will be re-advertised when the PESA board decides that it is suitable to resume running gatherings of this type.
Apologies in the mean time.
After the great reception given to our Late Permian nearshore sands getting transgressed and liberally covered with shale and source rock, for the next SSIG meeting we’re going to look at what happens with Early Permian nearshore sands when relative sea-level starts to regress. To do that we’re going to look at the Waitsia-1, Corybas-1, Cliff Head-3 and Dunsborough-2 cores and admire the transition from the nearshore High Cliff Sandstone, through to the aptly ‘Bit Basher Shale’, identify the elusive the Kingia Fm (and maybe even discuss what it is and isn’t) before launching headlong into the Glossopteris swamps preserved in the Irwin River Coal Measures. All of these facies are absolutely full to the brim with lovely sedimentary features and a wonderfully diverse ichnofauna so they will make interesting viewing for anyone that enjoys a good core and should be compelling for anyone who holds the Early Permian of the northern Perth Basin dear to their hearts.
In May we are planning to look at the Oxfordian section from the Montara region and postulate on whether the ‘Montara Delta’ is real or just a ghost left from a simpler time. We’ll go through a number of key cores from the area and look at the relationships between the sand bodies and more importantly pull out some fascinating information from the ichnofacies that should challenge the way this area is thought to have been deposited.
Don’t forget to book early as we have a hard limit of 30 attendees and February’s SSIG meeting was fully booked out. The next meeting starts at 1pm at the GSWA Carlisle Core Library on the 3rd of April.