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Projects on Google Earth
Spence oxide Project
Spence oxide
Country Chile 
Close to Calama
Status PRODUCTION 
Latitude / Longitude 22 S 56 / 69 W 23
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Produces Copper -
Develops
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Risk and valuation analysis of the Spence oxide Project
Status Risk : Production
Country Risk : Light
Resource Risk : 69.00%
In situ value
3,882,710 $
Title(s) of the Spence oxide Project
BHP Billiton
Owner: 100%
Company ProfileAll ProjectsCompany websiteCompany project page
TitleCompany ProfileAll ProjectsCompany websiteCompany project page
We own and operate the mine (100%). We hold a mining concession from the Chilean state that remains valid indefinitely (subject to payment of annual fees).
Location of the Spence oxide Project
Located near the community of Sierra Gorda in Region II of Northern Chile Approximately 50 km southwest of Calama and 150 km northeast of Antofagasta
 
History of the Spence oxide Project
1996: Deposit discovered by Rio Algom exploration • 1996 – 2002: Exploration & Development Work: – 174,970 meters of exploration & development drilling completed in total. – 1,133 meters of underground tunnel development for bulk sampling • 2 more...
 
Geology of the Spence oxide Project
Supergene enriched & partially oxidized porphyry copper deposit of Upper Paleocene age (~ 57 M Years)
 
Reserves and resources of the Spence oxide Project
TonnageGradeReserves and resources
CopperCopper
%lbs
 Proven28,000,0001.18 728 407 314
 Probable8,900,0000.82 160 893 359
 Proven and Probable36,900,0001.09 889 300 673
 Measured39,000,0001.351 160 733 810
 Indicated24,000,0000.95 502 653 958
 Mesured and Indicated63,000,0001.201 663 387 768
 Inferred1,000,0000.45 9 920 802
 Total 100 900 0002 562 609 243
Definitions
Reserves and resources of the Spence oxide Project
MetalTotalReservesResourcesUnitIn situ value
ProvenProbableProven and ProbableMeasuredIndicatedMesured and IndicatedInferred
 Copper2 562 609 243 728 407 314 160 893 359 889 300 6731 160 733 810 502 653 9581 663 387 768 9 920 802lbs8 377 169 616 US$
Production history
Metal201020092007
COPPER (lbs)351,857,770380,738,326166,449,007
Location
Data last updated on : 6/30/2009
Disclaimer
All information on this page comes from internal and external sources deemed reliable. This information might not be up to date, so please perform due diligence before making any conclusion or making any action. Do contact us should any information be missing or incorrect.
Cautionary Note to US Investors concerning estimates of Measured and Indicated Mineral Resources