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Delamerian - Adelaide sub-tract

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Accreted island arcs and continental magmatic arcs of Cambrian age in the Delamerian Orogen
Tract ID 009pCu8001a
Country Australia
Commodity Cu
Study area name Australia
Tectonic setting mixed
Deposit type porphyry copper
Grade-tonnage model Eastern Australia custom model (Bookstrom, 2013)
Geologic age
Geologic feature age Cambrian through Ordovician
Generalized age Paleozoic
Oldest rocks age 630Ma
Youngest rocks age 488Ma
Age range 142Ma
Known prospects 4
Mean Cu (t/sq km) 3t/sq km
Map scales used 1M

Results of the assessment

Assessment date 2010
Estimators Bookstrom, Arthur A.(USGS); Glen, Richard A. (GSNSW); Hammarstrom, Jane M.(USGS); Robinson, Gilpin R. (USGS); Zientek, Michael L. (USGS)
Assessment depth 1km
Quantitative assessment Yes

Estimated number of deposits

Number of deposits Confidence level
2 50%
5 10%
7 5%
7 1%
Mean estimated deposits 2.45 ±2.22 (0.91%)
Probability of mean 0.34
Probability of no copper 0.27

Estimated deposit density

Known
deposits		 Total
deposits		 Area
(sq km)		 Deposit density
per 100,000 sq km
2.45 50,747 5

Mean estimated tonnage

Copper 140,000
Ore 56

Undiscovered copper resource

Confidence level 50% 10% 5%
Tonnage 52,000 410,000 560,000

Economic analysis

Fraser country Australia
Fraser type 0.71%
Fraser high 0.29%
Typical cost 1%
High cost 0%
Infrastructure setting Typical
Comments on depth skew deep
Expected depth distribution
0 - 250m 0.1
250m - 500m 0.3
500m - 1km 0.6
Probability no econ recoverable 1
Exp dollars -10.62x $1M/100,000 sq km
Exp value class Very Low

Bibliographic references

General Bookstrom and others (2014)
Economic Robinson and Menzie (2012)
Bookstrom, A.A., Glen, R.A., Hammarstrom, J.M., Robinson, G.R., Jr., Zientek, M.L., Drenth, B.J., Jaireth, Subhash, Cossette, P.M., and Wallis, J.C., 2013, Porphyry copper assessment of eastern Australia: U.S. Geological Survey Scientific Investigations Report 2010–5090–L, 160 p., http://pubs.usgs.gov/sir/2010/5090/l/.Robinson, G.R., Jr., and Menzie, W.D., 2012, Economic filters for evaluating porphyry copper deposit resource assessments using grade-tonnage deposit models, with examples from the U.S. Geological Survey global mineral resource assessment (ver 1.2, March 2014): U.S. Geological Survey Scientific Investigations Report 2010–5090–H, 21 p., http://pubs.usgs.gov/sir/2010/5090/h/.

Deposits and prospects associated with this tract

Name Type State Country Development Details
Anabama Hill prospect South Australia Australia Prospect Details
Kitticoola prospect South Australia Australia Past Producer Details
Netley Hill prospect South Australia Australia Prospect Details
Thursdays Gossan prospect Victoria Australia Prospect Details