Transylvania-Balkan Mountains

Late Cretaceous and Paleocene calc-alkaline volcanic and intrusive rocks in the westernmost part of the Late Cretaceous Tethyan Eurasian Metallogenic Belt.
Tract ID 150pCu6001
Country Bulgaria-Romania-Serbia-Turkey
Commodity Cu
Study area name Europe
Tectonic setting continental margin
Deposit type porphyry copper
Grade-tonnage model General porphyry copper model (Singer and others, 2008)
Geologic age
Geologic feature age Late Cretaceous through Paleogene
Generalized age Tertiary-Paleogene
Oldest rocks age 99.6Ma
Youngest rocks age 23.03Ma
Age range 76.57Ma
Identified Cu resources 30,000,000metric tons
Known prospects 21
Mean Cu (t/sq km) 561t/sq km
Map scales used 50K, 200K, 500K, 1M, 1.5M

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 90%
3 50%
8 10%
8 5%
8 1%
Mean estimated deposits 4.07 ±2.4 (0.59%)
Probability of mean 0.29
Probability of no copper 0.04

Estimated deposit density

Known
deposits
Total
deposits
Area
(sq km)
Deposit density
per 100,000 sq km
15 19.07 28,500 67

Mean estimated tonnage

Copper 16,000,000
Molybdenum 440,000
Gold 390
Silver 5,100
Ore 3,200

Undiscovered copper resource

Confidence level 95% 90% 50% 10% 5%
Tonnage 250,000 950,000 8,200,000 36,000,000 57,000,000

Economic analysis

Fraser country Bulgaria*-Romania-Serbia-Turkey
Fraser type 0.61%
Fraser high 0.38%
Typical cost 0.79%
High cost 0.21%
Infrastructure setting Mixed
Comments on depth default
Expected depth distribution
0 - 250m 0.25
250m - 500m 0.25
500m - 1km 0.5
Economically recoverable resources
Copper 10,000,000t
Molybdenum 200,000t
Gold 190t
Silver 3,000t
Probability no econ recoverable 0.29
Econ NPV 2,600x $1M
Exp dollars 78.58x $1M/100,000 sq km
Exp value class High

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
Armutveren Karanlikdere prospect Kirklareli Turkey Prospect Details
Bozovici prospect Caras-Severin Romania Prospect Details
Cerovo deposit Bor Serbia Prospect Details
Choupetlovo prospect Sofija-Grad Bulgaria Prospect Details
Dobro Polje prospect Zajecar Serbia Prospect Details
Cofu prospect Caras-Severin Romania Prospect Details
Demirkoy Enverkule prospect Kirklareli Turkey Prospect Details
Demirkoy Kavakdere prospect Kirklareli Turkey Prospect Details
Demirkoy Rezve prospect Kirklareli Turkey Prospect Details
Demirkoy Sivriler prospect Kirklareli Turkey Prospect Details
Derekoy-Karadere deposit Kirklareli Turkey Prospect Details
Elatsite deposit Sofija Bulgaria Past Producer Details
Ikiztepeler deposit Kirklareli Turkey Prospect Details
Karlievo deposit Sofija Bulgaria Prospect Details
Majdanpek deposit Bor Serbia Producer Details
Medet deposit Pazardzhik Bulgaria Past Producer Details
Moldova Nouă deposit Caras-Severin Romania Producer Details
Oravita prospect Caras-Severin Romania Prospect Details
Tincova prospect Caras-Severin Romania Prospect Details
Plana prospect Sofija-Grad Bulgaria Prospect Details
Prohorovo deposit Yambol Bulgaria Producer Details
Sasca prospect Caras-Severin Romania Prospect Details
Silistar prospect Burgas Bulgaria Prospect Details
Sopot prospect Caras-Severin Romania Prospect Details
Tilva Skorus prospect Bor Serbia Prospect Details
Tsar Assen deposit Pazardzhik Bulgaria Past Producer Details
Velikovets prospect Burgas Bulgaria Prospect Details
Kiyikoy Uzunkum Kecikaya Police prospect Kirklareli Turkey Prospect Details
Borska Reka deposit Bor Serbia Past Producer Details
Dumitru Potok deposit Bor Serbia Past Producer Details
Orlovo Gnezdo deposit Pazardzhik Bulgaria Prospect Details
Popovo Dere deposit Pazardzhik Bulgaria Prospect Details
Valja Strz deposit Branicevo Serbia Prospect Details
Bratoushkovo prospect Sofija Bulgaria Prospect Details
Dragotintsi prospect Sofija Bulgaria Prospect Details
Gourgoulyatski kamuk prospect Sofija Bulgaria Prospect Details
Kominsko Mountain prospect Pazardzhik Bulgaria Prospect Details
Radulovtsi prospect Sofija Bulgaria Prospect Details
Byrdtseto prospect Burgas Bulgaria Prospect Details
Sukrupasa deposit Kirklareli Turkey Prospect Details
Vlaykov Vruh deposit Pazardzhik Bulgaria Past Producer Details
Bor deposit Bor Serbia Producer Details
Veliki Krivelj deposit Bor Serbia Prospect Details
Assarel deposit Pazardzhik Bulgaria Producer Details
Ciclova prospect Caras-Severin Romania Occurrence Details
Petelovo prospect Pazardzhik Bulgaria Occurrence Details
Uzunkum prospect Kirklareli Turkey Prospect Details
Dumitru Potok Group Group Bor Serbia Past Producer Details
Radulovtsi Group Group Sofija Bulgaria Prospect Details
Vlaykov Vruh Group Group Pazardzhik Bulgaria Past Producer Details
Bor Group Group Bor Serbia Producer Details
Assarel Group Group Pazardzhik Bulgaria Producer Details