Tagil Arc

Silurian to Late Devonian Tagil intra-oceanic volcanic arc and Middle Paleozoic calc-alkaline intrusions and volcanic rocks of the northern and Polar Urals (Silurian to Early Carboniferous)
Tract ID 142pCu8202
Country Russian Federation
Commodity Cu
Study area name Urals
Tectonic setting island arc
Deposit type porphyry copper
Grade-tonnage model General porphyry copper model (Singer and others, 2008)
Geologic age
Geologic feature age Silurian to Late Devonian
Generalized age Paleozoic
Oldest rocks age 443.7Ma
Youngest rocks age 359.2Ma
Age range 84.5Ma
Identified Cu resources 253,800metric tons
Known prospects 5
Mean Cu (t/sq km) 163t/sq km
Map scales used 1M

Results of the assessment

Assessment date 2015
Estimators Jane M. Hammarstrom, Mark J. Mihalasky, Steve Ludington
Assessment depth 1km
Quantitative assessment Yes

Estimated number of deposits

Number of deposits Confidence level
1 90%
3 50%
8 10%
12 5%
20 1%
Mean estimated deposits 4.37 ±4.41 (1.73%)
Probability of mean 0.28
Probability of no copper 0.06

Estimated deposit density

Known
deposits
Total
deposits
Area
(sq km)
Deposit density
per 100,000 sq km
1 5.4 100,776 5

Mean estimated tonnage

Copper 17,000,000
Molybdenum 460,000
Gold 430
Silver 5,400
Ore 3,400

Undiscovered copper resource

Confidence level 90% 50% 10% 5%
Tonnage 320,000 7,100,000 43,000,000 70,000,000

Economic analysis

Fraser country Russian Federation
Fraser type 0.12%
Fraser high 0.88%
Typical cost 0%
High cost 1%
Infrastructure setting High cost
Comments on depth default
Expected depth distribution
0 - 250m 0.25
250m - 500m 0.25
500m - 1km 0.5
Economically recoverable resources
Copper 8,300,000t
Molybdenum 180,000t
Gold 150t
Silver 2,500t
Probability no econ recoverable 0.57
Econ NPV 1,500x $1M
Exp dollars 8.25x $1M/100,000 sq km
Exp value class Low

Bibliographic references

General Hammarstrom (written commun., 2015)
Economic Hammarstrom (written commun., 2015)
Hammarstrom (written commun., 2015)
Hammarstrom (written commun., 2015)

Deposits and prospects associated with this tract

Name Type State Country Development Details
Alapaevskoe prospect Sverdlovskaya oblast Russian Federation Occurrence Details
Artemovskoe prospect Sverdlovskaya oblast Russian Federation Occurrence Details
Gumyshevskoe prospect Sverdlovskaya oblast Russian Federation Occurrence Details
Lekyn-Talbeiskaya deposit Yamalo-Nenetskiy avtonomnyy okrug Russian Federation Prospect Details
Novogodnee-Monto prospect Yamalo-Nenetskiy avtonomnyy okrug Russian Federation Occurrence Details
Yanaslor prospect Yamalo-Nenetskiy avtonomnyy okrug Russian Federation Occurrence Details