After emerging from the resources wilderness thanks to its world-class geology and industry-friendly government policies, South Australia is now a leader in Australian mining and hydrocarbon developments over the last decade.
In little more than a decade the State has gone from four operating mines to more than 20 and is rated Australia’s second most popular exploration destination.
With a comprehensive review of the Mining Act under way, the State’s attractiveness as a place for resources and energy investment is expected to be strengthened.
South Australia is now a leader in the exploration for next generation energy sources with companies such as Santos and BP leading the charge, while initiatives such as the Government’s Copper Strategy – designed to treble annual copper production to 1 mtpa – is set to establish the State as one of the world’s premier producers of the red metal.
In the energy space, uranium and nuclear energy is another area of keen interest, with the South Australian Government initiating a Royal Commission into Participation in the Nuclear Fuel Cycle in 2016.
The State has become synonymous with innovation, cutting-edge development and a remarkable rate of discovery. From uranium prospects, to geothermal energy and the buoyant hydrocarbons sector, South Australia is now a leader in the exploration for next generation energy sources.
With full support from the Department of State Development, the South Australian Resources and Energy Investment Conference will continue to showcase this burgeoning sector in 2017. From copper plays in the Gawler Craton, to iron ore and graphite developments on the Eyre Peninsula and the emergence of the State as a new hydrocarbon frontier, South Australia’s resources potential is at last being fully recognised.
The conference will feature the success stories and emerging players in the State from both minerals and oil and gas and will also tackle thorny industry issues such as infrastructure, corporate social responsibility and the future of the Woomera Prohibited Area.
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1. Diamonds – New ApproachesDiamonds – New Approaches
to Data and Targetingto Data and Targeting
Andrea McKinnon-Matthews
EXIT
2. Introduction
• Initiatives by PIRSA:
Diamond Exploration Database
Kimberlite and Related Rocks Atlas
Diamond Interest Group
• Industry Results
Orogenic Exploration Pty Ltd
Flinders Diamonds Ltd
3. DIAmond EXploration
Database
• Comprehensive compilation of
all historical open file diamond
exploration results from surface
and sub-surface samples
• Details include:
location metadata
indicator mineral results
microprobe data
trace element and whole
geochemistry
detailed referencing petrology,
palynology and geochronology
reports
• Promotional CD available
July 2005!Compiler: Andrea McKinnon-Matthews,
Project Geologist, PIRSA
4. DIAEX Database Progress
• Work began October 2003
• Focus began with more recent open file reports that had
complete data
• 162 open file reports have been reviewed (>50%)
• Data for over 21,000 samples with indicator mineral data are
entered into SA_Geodata
• These samples have ~ 85,000 indicator mineral results, of which
about 4500 are positive
• Completed data from these reports will be
available on a promotional CD July 2005
6. Ilmenite
0
1
2
3
4
5
6
7
0 5 1 0 1 5 2 0 2 5
M g O w t %
Cr2O3wt%
N o n - k im b e r lit ic M g - R ic h K im b e r lit ic
C le v e - 1 a n d S k e r r in g
K im b e r lite s , A u s tr a lia
( W y a tt e t a l. , 2 0 0 4 )
A r g y le L a m p r o it e
I lm e n it e
5 1 0 1 5 2 00
1
2
6
7
3
5
4
0
2 5
S o u t h A u s t r a lia
N o r th e r n T e r r it o r y
A lb e r ta , C a n a d a
7. Chromite
0
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
0 5 1 0 1 5 2 0
D ia m o n d I n c lu s io n
C h r o m it e s
M g O w t %
Cr2O3wt%
5 1 5 2 00 1 0
0
1 0
2 0
4 0
7 0
8 0
6 0
3 0
5 0
S o u t h A u s t r a lia
N o r th e r n T e r r it o r y
A lb e r ta , C a n a d a
A r g y le L a m p r o it e
E lle n d a le
L a m p r o it e
8. Garnet
0
2
4
6
8
1 0
1 2
1 4
1 6
0 2 4 6 8 1 0 1 2 1 4
C a O w t %
Cr2O3wt%
2 6 8 1 20
8
1 4
S o u t h A u s t r a lia
N o r t h e r n T e r r it o r y
A lb e r ta , C a n a d a
1 0
1 2
1 4
1 6
6
4
2
0
1 0
4
C r - r ic h
G u r n e y G 9 P y r o p e
( L h e r z o lit ic )
G u r n e y G 1 0 P y r o p e
( H a r z b u r g itic )
E lle n d a le
L a m p r o it e
A r g y le
L a m p r o it e
9. Kimberlite and Related Rocks – S.A. Atlas
• Consist of a compiled summary of
each kimberlite province/field
documenting:
Accurate location
Size and shape of body
Depth of cover
Regional/local structure and
geology
Petrology, whole rock
geochemistry, indicator minerals
and chemistry, geochronological
information
Will also include state-wide
geophysical, paleo-drainage and
structural interpretation maps
Researchers: Brian Morris, Senior Geologist,
PIRSA; Steven A. Cooper, Senior Geologist,
Orogenic Exploration Pty Ltd
10. Diamond Interest Group – D.I.G.
• Is a unique, interactive forum involving industry,
academia and PIRSA
• Established January 2003
• Prominent past guest speakers include:
Interstate: Wolfgang Marx, Richard Haines, Miles
Kennedy, Brian Kennett
South Australia: Dr. Kevin Wills, Lindsay Curtis, Dr.
David Miller, Steve Cooper
PIRSA: Wolfgang Preiss, John Keeling, Alan Mauger,
Malcolm Sheard, Baohong Hou, Wayne Cowley
• Line-up for 2005
Tom Reddicliffe, Striker Resources
Dr. Lynton Jaques, Minerals Division, Geoscience
Australia
Dr. Wayne Taylor, Elkedra Diamonds NLCoordinator: Vicki Stamoulis,
Project Geologist, PIRSA
11. Diamond Exploration in
South Australia
HOLDERS OF EXPLORATION LICENCES
AKD Ltd
Alphadale Pty Ltd
Amona Mining and Exploration
Pty Ltd
Aztec Mining Company Ltd
Caldera Resources Pty Ltd
Flinders Diamonds Ltd
Richard J Haren
D T Miller
Novec Pty Ltd
Olliver Geological Services
Orogenic Exploration Pty Ltd
Reedy Lagoon Corporation Ltd
Statelink Holdings Pty Ltd
Tasman Resources NL
Tawana Resources NL
Tarcoola
Woomera
Port Augusta
Moonta
Ceduna
Coober Pedy
Oodnadatta
Moomba
Mintabie
Renmark
Adelaide
Kingscote
Marree
Diamond exploration licences
Robe
Mt Gambier
12. Orogenic Exploration Pty Ltd – Shell Lagoon Project
• Exploration Results
Used available open file and
aerial geophysical data to
generate a number of new
magnetic targets
Collected 29 stream sediment
samples, 15 of which returned
positive results
92 chromites confirmed by
microprobe and a pale-greenish
dodecahedral microdiamond
(0.55x0.45x0.35mm; 0.0015ct)
• Future Exploration
Further sampling is planned
Photos provided
courtesy of Orogenic
Exploration
13. Flinders Diamonds Ltd – Flinders Ranges Diamond
Province
• Exploration Results
9 new kimberlites have recently
been discovered in the form of
dykes, one sill and the JS Kimberlite
pipe
A total of 9 microdiamonds were
recovered from 6 of the kimberlites
4 major regional northwest trending
kimberlite dyke swarms have been
identified; Cradock, Eurelia,
Peterborough, and Jamestown
swarms
• Future Exploration
20 targets have been selected for
trenching began April 2005
2 new high-resolution airborne
magnetic surveys to commence in
May 2005
Photos provided courtesy of Flinders
Diamonds Ltd
14. Summary
• The Diamond Exploration database provides a first stage
tool for diamond explorers
User-friendly data
Easier targeting
Lower the exploration risk
Offers the “big picture” of historical exploration data
Refinement/development of diamond exploration
techniques
• Leads to second stage of “gap analysis”
Editor's Notes
Complete Data: locations, indicator mineral and microprobe data
SA_Geodata: system is backed up off site, not susceptible to random data loss etc
The presentations have included using high resolution ground gravity for detecting kimberlites, paleochannel modelling, alluvial diamonds in South Africa to name a few.
The JS kimberlite pipe was originally located as a small exposure in a creek bank by John Simnovec
Detailed airborne magnetics to be flown at 100m line spacing and totalling ~37000 line kilometers
Lindsay Curtis (Novec Pty Ltd) and Amona entered 2 year option agreement on EL’s 2723,2977,3225 with FDL.