Haaparanta

Extent of known intrusions of the 1.88 Ga Haarparanta suite.
Tract ID 150pCu6103
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 1880Ma
Youngest rocks age 1880Ma
Age range 0Ma
Mean Cu (t/sq km) 243t/sq km
Map scales used 500, 4K, 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
2 50%
3 10%
3 5%
3 1%
Mean estimated deposits 1.7 ±1.1 (0.63%)
Probability of mean 0.28
Probability of no copper 0.2

Estimated deposit density

Known
deposits
Total
deposits
Area
(sq km)
Deposit density
per 100,000 sq km
1.7 6,184 27

Mean estimated tonnage

Copper 1,500,000
Molybdenum 68,000
Gold 170
Silver 1,800
Ore 570

Undiscovered copper resource

Confidence level 50% 10% 5%
Tonnage 340,000 4,100,000 6,000,000

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 250,000t
Molybdenum 10,000t
Gold 19t
Silver 400t
Probability no econ recoverable 0.5
Econ NPV 120x $1M
Exp dollars -16.12x $1M/100,000 sq km
Exp value class Low

Bibliographic references

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