Southern Savo

Synorogenic (1.89-1.88 Ga?) granitoid rocks that intruded Svecofennian mica gneisses and mafic volcanic rocks in southeastern Finland.
Tract ID 150pCu6109
Country Finland
Commodity Cu
Study area name Finland
Tectonic setting unknown
Deposit type porphyry copper
Grade-tonnage model Precambrian porphyry copper (Geological Survey of Finland, 2014)
Geologic age
Geologic feature age Precambrian
Generalized age Precambrian
Oldest rocks age 1890Ma
Youngest rocks age 1880Ma
Age range 10Ma
Known prospects 1
Mean Cu (t/sq km) 464t/sq km
Map scales used 1K, 10K

Results of the assessment

Assessment date 2012
Estimators Geological Survey of Finland
Assessment depth 1km
Quantitative assessment Yes

Estimated number of deposits

Number of deposits Confidence level
1 10%
1 5%
1 1%
Mean estimated deposits 0.3 ±0.5 (1.7%)
Probability of mean 0.11
Probability of no copper 0.7

Estimated deposit density

(sq km)
Deposit density
per 100,000 sq km
0.3 603 50

Mean estimated tonnage

Copper 280,000
Molybdenum 14,000
Gold 28
Silver 330
Ore 100

Undiscovered copper resource

Confidence level 10% 5%
Tonnage 340,000 1,300,000

Economic analysis

Fraser country Finland
Fraser type 0.97%
Fraser high 0.03%
Typical cost 1%
High cost 0%
Infrastructure setting Typical
Comments on depth default
Expected depth distribution
0 - 250m 0.25
250m - 500m 0.25
500m - 1km 0.5
Economically recoverable resources
Copper 47,000t
Molybdenum 2,100t
Gold 3t
Silver 73t
Probability no econ recoverable 0.95
Econ NPV 22x $1M
Exp dollars -71.72x $1M/100,000 sq km
Exp value class Low

Bibliographic references

General Rasilainen and others (2014)
Economic Robinson and Menzie (2012)

Deposits and prospects associated with this tract

Name Type State Country Development Details
Varparanta prospect Mikkeli Finland Occurrence Details