Yazd

Middle Eocene to middle Miocene backarc and continental arc of the Tethyan Metallogenic Belt.
Tract ID 142pCu9015
Country Iran
Commodity Cu
Study area name Tethys
Tectonic setting continental margin
Deposit type porphyry copper
Grade-tonnage model General porphyry copper model (Singer and others, 2008)
Geologic age
Geologic feature age middle Eocene through middle Miocene
Generalized age Tertiary-Paleogene
Oldest rocks age 40.4Ma
Youngest rocks age 11.6Ma
Age range 28.8Ma
Identified Cu resources 270,000metric tons
Known prospects 13
Mean Cu (t/sq km) 506t/sq km
Map scales used 1M, 2.5M

Results of the assessment

Assessment date 2012
Estimators Arthur A. Bookstrom, Jane M. Hammarstrom, Steve Ludington, John C. Mars, Michael L. Zientek, Lukas Zurcher.
Assessment depth 1km
Quantitative assessment Yes

Estimated number of deposits

Number of deposits Confidence level
1 90%
2 50%
8 10%
8 5%
8 1%
Mean estimated deposits 3.43 ±2.73 (0.8%)
Probability of mean 0.29
Probability of no copper 0.06

Estimated deposit density

Known
deposits
Total
deposits
Area
(sq km)
Deposit density
per 100,000 sq km
2 5.43 25,710 21

Mean estimated tonnage

Copper 13,000,000
Molybdenum 360,000
Gold 330
Silver 4,400
Ore 2,700

Undiscovered copper resource

Confidence level 90% 50% 10% 5%
Tonnage 230,000 5,500,000 32,000,000 53,000,000

Economic analysis

Fraser country Iran (use Turkey*)
Fraser type 0.7%
Fraser high 0.31%
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 8,700,000t
Molybdenum 170,000t
Gold 170t
Silver 2,700t
Probability no econ recoverable 0.31
Econ NPV 2,500x $1M
Exp dollars 82.38x $1M/100,000 sq km
Exp value class High

Bibliographic references

General Zürcher and others (in press)
Economic Robinson and Menzie (2012)

Deposits and prospects associated with this tract

Name Type State Country Development Details
Chah-e Khattab prospect Yazd Iran Prospect Details
Dalli deposit Markazi Iran Prospect Details
Kahang deposit Esfahan Iran Producer Details
Kahrud prospect Esfahan Iran Past Producer Details
Kahyaz prospect Esfahan Iran Unknown Details
Kesheh prospect Esfahan Iran Past Producer Details
Kuh Sang Mes prospect Esfahan Iran Producer Details
Qahan prospect Markazi Iran Prospect Details
Qamsar prospect Esfahan Iran Occurrence Details
Rangan prospect Esfahan Iran Prospect Details
Sharif Abad prospect Esfahan Iran Past Producer Details
Shiraz Koh prospect Yazd Iran Prospect Details
South of Ardestan prospect Esfahan Iran Unknown Details
Zafarghand prospect Esfahan Iran Prospect Details
Zefreh prospect Esfahan Iran Prospect Details