re: Ann: FURTHER EXCELLENT DRILLING RESULTS F... ocracoke , just...

re: Ann: FURTHER EXCELLENT DRILLING RESULTS F... ocracoke , just a bit of info you and others might find interesting after reading posts from you, P.P. and 2ic.
Next Wed 15 April at The Theodore Club , 333 Adelaide St
Brisbane. the Geological Society of Australia (Qld)
free seminar + (finger food and drinks at the bar)
TOPIC: "Australian Proterozoic Mafic-Ultramafic
Magmatic Events Map"
SPEAKER: Jon Claoue-Long (Geoscience Australia)

I reckon it will be a top night !
Get there before 6pm, a bit of finger food and a couple of
VB long-necks then straight up to the 13th floor for Jon's
"seminar". Mate, you'll love it !!

"Worldwide,the discovered very large Nickel and Platinum
Group Element(PGE)sulphide deposits are strongly concentrated in mafic igneous rocks of Proterozoic age.
The rich Proterozoic Ni-PGE endowment of other countries -
Canada,Africa,China and Russia - contrasts with the
record of discovery in Australia,where only one world-class
example has been found so far ( Nebo-Babel )

The deficit of discoveries in Australia, relative to other
continents,is unlikely to reflect real geological differ-
ences,rather,it points to the difficulty of identifying
settings for mineralisations in intrusions that are under
cover. This presents a major opportunity for exploration
that can use the knowledge gained from other continents
to predict which magmatic events and intrusions may be
most prospective.

Geoscience Australia has produced a new 'MAP OF AUSTRALIAN
PROTEROZOIC MAFIC-ULTRAMAFIC MAGMATIC EVENTS'
Nine of 30 newly-defined Magmatic "events" (yeah yeah) are
mineralised in Oz and 6 are co-eval with major Ni-Cu + PGE
deposits in other continents.
There are important correlations of these mineralised
systems under SHALLOW COVER and in under-explored provinces. The full extent of the mafic-ultramafic magmatic systems is shown and significant extensions to
some igneous provinces are evident".

Then a bit about Qld and a 'prominent' example in the
Mount Isa Eastern Creek Volcanics , whose metal depletion implies removal of PGE sulphides in the FEEDER plumbing.
The new map highlights coeval PGE-Au-V mineralised intrus-
ions as far away as the Arunta and Kimberley regions.

If yous can't make it next Wednesday night to the 'Theo'
with Jon and ocracoke (maybe Keith Watkins as well) then
best you just 'download it'.

THE QUEENSLAND GEOLOGIST - Bi monthly Newsletter Vol 109
No 2 - March/April 2009

www.qld.gsa.org.au

The map at Geoscience Australia.