{31300372-21EE-4E26-924D-9A02A9830898}2008061716134400FALSE20080617172019002008061717215700Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350enQuantitative Mineral Resource Assessment of
Copper, Molybdenum, Gold, and Silver in
Undiscovered Porphyry Copper Deposits in the
Andes Mountains of South AmericaQuantitative information on the general locations
and amounts of undiscovered porphyry copper
resources of the world is important to
exploration managers, land-use and environmental
planners, economists, and policy makers. This
publication contains the results of probabilistic
estimates of the amounts of copper (Cu),
molybdenum (Mo), silver (Ag), and gold (Au) in
undiscovered porphyry copper deposits in the
Andes. The methodology used to make these
estimates is called the "Three-Part Form." It was
developed to explicitly express estimates of
undiscovered resources and associated uncertainty
in a form that allows economic analysis and is
useful to decisionmakers.U.S. Geological SurveyJune 2008South American Copper TractsSACuTractsvector digital data\\IGSAAAHMWSG280\D\projects\sutphin\SOUTH_AMERICA_TEMP\Tracts\SACuTracts.shppublication dateJune 2008None planned-89.319412-63.78193611.932796-56.015326-813546.708593826087.6608703792077.55011011319137.480844CopperMolybdenumGoldSilverShapefileCharles G. Cunningham, Eduardo O. Zappettini,
Waldo Vivallo S., Carlos Mario Celada, Jorge
Quispe, Donald A. Singer, Joseph A Briskey, David
M. Sutphin, Mariano Gajardo M., Alejandro Diaz,
Carlos Portigliati, Vladimir I. Berger, Rodrigo
Carrasco, and Klaus J. Schulz
Prepared and published jointly by the geological
surveys of Argentina, Chile, Colombia, Peru, and
the United States954 National Center12201 Sunrise Valley Drivemailing and physical addressRestonVA20192-0002USA703-648-6121cunningham@usgs.govjbriskey@usgs.gov703-648-6112Charles G. Cunningham and Joseph A. BriskeyU.S. Geological SurveyUnclassifiedMicrosoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350SACuTracts-813546.708593826087.6608711319137.4808443792077.550111-89.319412-63.78193611.932796-56.0153261enFGDC Content Standards for Digital Geospatial MetadataFGDC-STD-001-1998local timeBoris BarriosU.S. Geological Surveymailing and physical addressRestonVA20192U.S. Geological Survey12201 Sunrise Valley Drive MS 954703-648-4927GIS Technician20080617http://www.esri.com/metadata/esriprof80.htmlESRI Metadata ProfileISO 19115 Geographic Information - MetadataDIS_ESRI1.0datasetDownloadable Data0.1560.156For product and ordering information:
World Wide Web: http://www.usgs.gov/pubprod
Telephone: 1-888-ASK-USGSmailing and physical addressRestonVA20192USAU.S. GEOLOGICAL SURVEY1-888-ASK-USGSAny use of trade, product, or firm names is for
descriptive purposes only and does not imply
endorsement by the U.S. Government.
Although this report is in the public domain,
permission must be secured from the individual
copyright owners to reproduce any copyrighted
materials contained within this report.
For more information on the USGS--the United
States Federal source for science about the
Earth, its natural and living resources, natural
hazards, and the environment:
World Wide Web: http://www.usgs.gov
Telephone: 1-888-ASK-USGS002file://\\IGSAAAHMWSG280\D\projects\sutphin\SOUTH_AMERICA_TEMP\Tracts\SACuTracts.shpLocal Area Network0.156ShapefileVectorSimplePolygonFALSE29FALSEFALSEG-polygon29GCS_Provisional_S_American_1956PSAD_1956_UTM_Zone_19Scoordinate pairmeters0.0000000.000000Universal Transverse Mercator-190.999600-69.0000000.000000500000.00000010000000.000000D_Provisional_S_American_1956International_19246378388.000000297.000000PSAD_1956_UTM_Zone_19S29SACuTractsFeature Class29FIDFIDOID400Internal feature number.ESRISequential unique whole numbers that are automatically generated.ShapeShapeGeometry000Feature geometry.ESRICoordinates defining the features.Shape_areaShape_areaNumber19Area of feature in internal units squared.ESRIPositive real numbers that are automatically generated.11TRACT_IDTRACT_IDString10User-defined, unique identifier assigned to permissive tractUSGS Global Mineral Resources Assessment ProjectCoded_IDCoded_IDString254Coded, unique identifier assigned to permissiive tractUSGS Global Mineral Resources Assessment ProjectTract_nameTract_nameString254Informal name of permissive tract [Optional]USGS Global Mineral Resources Assessment ProjectUnregcodeUnregcodeString254Three digit UN code for the region that underlies most of the permissive tractUSGS Global Mineral Resources Assessment ProjectCountryCountryString254Country(ies) in which permissive tract is locatedUSGS Global Mineral Resources Assessment ProjectCommodityCommodityString254Primary commodity being assessedUSGS Global Mineral Resources Assessment ProjectDep_typeDep_typeString254Name of the deposit type assessedUSGS Global Mineral Resources Assessment ProjectGT_modelGT_modelString254Grade-tonnage model used for the undiscovered deposit estimate USGS Global Mineral Resources Assessment ProjectGeologyGeologyString254Geologic feature assessedUSGS Global Mineral Resources Assessment ProjectAgeAgeString254Age of geologic feature assessedUSGS Global Mineral Resources Assessment ProjectAsmt_dateAsmt_dateFloat1911Year assessment was conductedUSGS Global Mineral Resources Assessment ProjectAsmt_depthAsmt_depthFloat1911Maximum depth beneath the Earth's surface used for the assessment, in kilometers.USGS Global Mineral Resources Assessment ProjectEst_levelsEst_levelsString254The set of percentile (probability) levels at which undiscovered deposit estimates were madeUSGS Global Mineral Resources Assessment ProjectN90N90Float1911Estimated number of deposits associated with the 90th percentile (90 percent chance of at least the indicated number of deposits).USGS Global Mineral Resources Assessment ProjectN50N50Float1911Estimated number of deposits associated with the 50th percentile (50 percent chance of at least the indicated number of deposits). Values for N90 ? N50 ? N10 ? N05 ? N01USGS Global Mineral Resources Assessment ProjectN10N10Float1911Estimated number of deposits associated with the 10th percentile (10 percent chance of at least the indicated number of deposits). Values for N90 ? N50 ? N10 ? N05 ? N01USGS Global Mineral Resources Assessment ProjectN_expectedN_expectedFloat1911Expected (mean) number of deposits USGS Global Mineral Resources Assessment ProjectssString254Standard deviationUSGS Global Mineral Resources Assessment ProjectCv_percentCv_percentFloat1911Coefficient of variance, in percent USGS Global Mineral Resources Assessment ProjectN_knownN_knownFloat1911Number of known deposits in the tractUSGS Global Mineral Resources Assessment ProjectN_totalN_totalFloat1911Total number of deposits. USGS Global Mineral Resources Assessment ProjectArea_km2Area_km2Float1911Area of permissive tract, in square kilometersUSGS Global Mineral Resources Assessment ProjectDepDensityDepDensityString254Deposit density per 100,000 square kilometersUSGS Global Mineral Resources Assessment ProjectDepDen10E5DepDen10E5String254Deposit density per 100,000 square kilometersUSGS Global Mineral Resources Assessment ProjectEstimatorsEstimatorsString254Names of people on the estimation teamUSGS Global Mineral Resources Assessment ProjectNotesNotesString254Notes or comments [Optional]USGS Global Mineral Resources Assessment Project20080617