Thursday 17 September 2009, 6.15 pm
(Drinks and Nibbles from 5.30pm)
Dr Anthony Reid
(2009 Howchin Medallist
and
Senior Geochronologist, Geological Survey of South Australia)
will speak on
"Sue Daly's challenge:
Sand, Gold and 70 million years of orogenesis"
Venue: Mawson Theatre, Mawson Laboratories, University of Adelaide.
(Optional post meeting dinner at Café Michel, Rundle St for ~$30 per head)

ABSTRACT:
Sue Daly’s challenge:
Sand, Gold and 70 million years of orogenesis
in the Mulgathing Complex
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Sue Daly’s career at the Geological Survey of South Australia
spanned over 40 years. During this time she was an integral part
of the major advances in our understanding of the Archaeanearliest
Palaeoproterozc geology of the Gawler Craton. When she
began mapping the TARCOOLA 1:250000 sheet there was little
previous work but descriptions of sand, with a few scattered
outcrops of ‘granite’ or ‘gneiss’. By the time she had finished there
was a gold mine within those Archaean gneisses and numerous
regional gold and nickel prospects and a thorough documentation
of the geology of the Mulgathing Complex. This talk will cover
these 'historical' changes and present the results of PIRSA’s new
geochronology and observations on the geology of this region
leading to an discussion of the tectonic evolution of the Mulgathing
Complex. Our new data shows that prolonged magmatic heat input
into the crust and shallow sedimentary basin(s) was likely an
important primer for the subsequent c. 2480-2410 Ma granulite
facies metamorphism.

VISITORS WELCOME
PARKING
• Victoria Drive, Frome Road, Memorial Drive: meters timed to 6.00 p.m.,
free thereafter.
• Meter parking within university grounds, tickets $5 through Gate 10, west
of the
footbridge, coin machine 10m within gate.
• "EZIPARK" at Royal Adelaide Hospital, enter from Frome Rd. at traffic
lights opposite
Petroleum Engineering. $2-50/hour for 3 hours thence $1-00 for each extra
hour.
2

Grant Jacquier
Computers in Geology
Parkside, South Australia
tel/fax/service 61-8-8271-1672
http://www.grantjacquier.info/