Colombia-Ecuador-Peru Jurassic San Carlos

Jurassic mainly calc-alkaline granodioritic, dioritic, and tonalitic plutons, including the Mocoa batholith (Colombia). Includes intruded Jurassic basaltic and andesitic lava flows (Ecuador and Peru).
Tract ID 005pCu1003
Country Colombia-Ecuador-Peru
Commodity Cu
Study area name Andes
Tectonic setting continental margin
Deposit type porphyry copper
Grade-tonnage model General porphyry copper model (Singer and others, 2005)
Geologic age
Geologic feature age Jurassic
Generalized age Mesozoic
Oldest rocks age 199.6Ma
Youngest rocks age 145.5Ma
Age range 54.1Ma
Identified Cu resources 14,000,000metric tons
Known prospects 4
Mean Cu (t/sq km) 591t/sq km
Map scales used 500K, 1M

Results of the assessment

Assessment date 2005
Estimators Carlos Mario Celada, Vladimir I. Berger, Joseph A Briskey, Charles G. Cunningham, Mariano Gajardo M., Donald A. Singer, David M. Sutphin, Waldo Vivallo S., and Eduardo O. Zappettini
Assessment depth 1km
Quantitative assessment Yes

Estimated number of deposits

Number of deposits Confidence level
6 90%
11 50%
20 10%
20 5%
20 1%
Mean estimated deposits 11.8 ±5.26 (0.45%)
Probability of mean 0.38
Probability of no copper 0.02

Estimated deposit density

Known
deposits
Total
deposits
Area
(sq km)
Deposit density
per 100,000 sq km
5 16.8 67,710 25

Mean estimated tonnage

Copper 40,000,000
Molybdenum 980,000
Gold 970
Silver 13,000
Ore 7,800,000,000

Undiscovered copper resource

Confidence level 95% 90% 50% 10% 5%
Tonnage 3,100,000 7,100,000 31,000,000 85,000,000 110,000,000

Economic analysis

Fraser country Colombia*-Ecuador-Peru (avg all 3 countries)
Fraser type 0.4%
Fraser high 0.6%
Typical cost 0.15%
High cost 0.85%
Infrastructure setting Mixed
Comments on depth 30% cover; uniform probably ok
Expected depth distribution
0 - 250m 0.25
250m - 500m 0.25
500m - 1km 0.5
Economically recoverable resources
Copper 20,000,000t
Molybdenum 360,000t
Gold 330t
Silver 6,300t
Probability no econ recoverable 0.15
Econ NPV 4,200x $1M
Exp dollars 55.16x $1M/100,000 sq km
Exp value class High

Bibliographic references

General Cunningham and others (2008)
Economic Robinson and Menzie (2012)

Deposits and prospects associated with this tract

Name Type State Country Development Details
Cumay prospect Zamora-Chinchipe Ecuador Unknown Details
Dolores prospect Tolima Colombia Unknown Details
El Hito prospect Zamora-Chinchipe Ecuador Occurrence Details
Mirador deposit Zamora-Chinchipe Ecuador Occurrence Details
Mocoa deposit Putumayo Colombia Occurrence Details
Panantza deposit Morona-Santiago Ecuador Occurrence Details
San Carlos deposit Morona-Santiago Ecuador Occurrence Details
Tumi prospect Loja Ecuador Occurrence Details
Warintza deposit Zamora-Chinchipe Ecuador Occurrence Details