Northern Carpathians

An arcuate belt of calc-alkaline volcanic and intrusive rocks that formed in a post-subduction setting due to extension, lithospheric thinning, and mantle upwelling.
Tract ID 150pCu6004
Country Hungary-Romania-Slovakia-Ukraine
Commodity Cu
Study area name Europe
Tectonic setting postconvergence
Deposit type porphyry copper
Grade-tonnage model Porphyry copper, Cu-Au subtype (Singer and others, 2008)
Geologic age
Geologic feature age Miocene
Generalized age Tertiary-Neogene
Oldest rocks age 23.03Ma
Youngest rocks age 5.332Ma
Age range 17.698Ma
Identified Cu resources 730,000metric tons
Known prospects 8
Mean Cu (t/sq km) 274t/sq km
Map scales used 1M

Results of the assessment

Assessment date 2010
Estimators Byron R. Berger, Lawrence J. Drew, Jane M. Hammarstrom, Duncan E. Large, David M. Sutphin
Assessment depth 1km
Quantitative assessment Yes

Estimated number of deposits

Number of deposits Confidence level
2 50%
6 10%
6 5%
6 1%
Mean estimated deposits 2.6 ±2.21 (0.85%)
Probability of mean 0.28
Probability of no copper 0.19

Estimated deposit density

(sq km)
Deposit density
per 100,000 sq km
1 3.6 28,850 12

Mean estimated tonnage

Copper 7,900,000
Molybdenum 46,000
Gold 580
Silver 2,600
Ore 1,600

Undiscovered copper resource

Confidence level 50% 10% 5%
Tonnage 2,900,000 21,000,000 34,000,000

Economic analysis

Fraser country Hungary-Romania-Slovakia-Ukraine
Fraser type 0.44%
Fraser high 0.56%
Typical cost 0.27%
High cost 0.73%
Infrastructure setting Mixed
Comments on depth deep
Expected depth distribution
0 - 250m 0.1
250m - 500m 0.3
500m - 1km 0.6
Economically recoverable resources
Copper 3,900,000t
Molybdenum 17,000t
Gold 200t
Silver 1,300t
Probability no econ recoverable 0.81
Econ NPV 870x $1M
Exp dollars 8.36x $1M/100,000 sq km
Exp value class Low

Bibliographic references

General Sutphin and others (2013)
Economic Robinson and Menzie (2012)

Deposits and prospects associated with this tract

Name Type State Country Development Details
Biely Vrch prospect Banskobystricky kraj Slovakia Occurrence Details
Borzsony Mountains prospect Nógrád Hungary Prospect Details
Ivo-Cocoizas prospect Harghita Romania Prospect Details
Kremnica prospect Banskobystricky kraj Slovakia Prospect Details
Lepes prospect Mures Romania Prospect Details
Oas prospect Satu Mare Romania Prospect Details
Ostoros prospect Harghita Romania Occurrence Details
Sumulea prospect Harghita Romania Prospect Details
Banska Štiavnica deposit Banskobystricky kraj Slovakia Past Producer Details
Sementlov deposit Banskobystricky kraj Slovakia Occurrence Details
Vysoká-Zlatno deposit Banskobystricky kraj Slovakia Prospect Details
Štiavnica Group Group Banskobystricky kraj Slovakia Past Producer Details