CANADIAN AND WORLD MINERAL DEPOSIT DATABASES
Geological Survey of Canada


Deposit number Country Location Names Commodities
755 Peru (Ica) 15.22.35 S -- 074.48.49 W Pampa de Pongo Fe; Cu; Au
 
Database name: World Fe-oxide+/-Cu-Au-U (IOCG) deposits
Compilers: Sunil S. Gandhi
Release date: 2015-03-04
   
Deposit name(s): Pampa de Pongo (occurrence name)
Political location(s): Peru; Province or state: Ica; Nearest community: Lima (400 km S)
Deposit clan (type): Olympic Dam-type
Deposit status: drilled prospect; Status comments: widely-spaced drilling suggests a potential resource of 1000 Mt comprisinf approximately 75 % magnetite, or around 40 % Fe.
Geologic province: Andean Orogen
Geologic subprovince: Coastal Cordillera
Geologic district: Cañete-Huarmey Marginal Basin
Commodities: Fe; Cu; Au
Mineralization styles: replacement; massive (magnetite manto replacement); stockwork (halo); breccia-fillings; veins (magnetite)
Geological ages: Jurassic (host rocks)
Cretaceous (mineralization)
Coincident features: fault(s) (Steeply dipping, NW-trending fault corridor parallel to the Huaca fault system at Marcona)
lithology
Host rocks: (1) sedimentary; mudstone-sandstone-siltstone-conglomerate (interbedded with volcanics and volcaniclastics)
Individual lithologies:conglomerate
siltstone (banded)
shale
sandstone
sandstone (carbonate-rich)
Host rock stratigraphy:Jahuay Formation

(2) volcanic; intermediate volcanic rocks (flows, volcaniclastics, and dyke/sills); Component: main mineralized zone
External host rock forms:flows, agglomerates, sills
Individual lithologies:andesite (feldspar-phyric)
Host rock stratigraphy:Jahuay Formation

(3) sedimentary; carbonate; Component: lower sequence
Individual lithologies:dolomite
Host rock stratigraphy:Jahuay Formation

(4) intrusive; gabbro-diorite suite (abundant andesite dykes/sills); Magma series/sedimentary package/metamorphic group: calc-alkaline; Depositional setting: hypabyssal; Metamorphic grade: burial
External host rock forms:dykes
Individual lithologies:ocöite
andesite
Related igneous rocks: (1) intrusive; unclassified granitoid rocks (veined with Fe oxide locally); Initials: Coastal Batholith; Magma series: calc-alkaline; Depositional setting: continental
Metallogenic signatures: Fe-Cu-Au
Alteration signatures: albitization; What was altered: andesite; Component: early and peripheral alteration
skarn: andraditic garnet and diopsidic clinopyroxene; What was altered: albitized andesite; Component: endoskarn
magnetite replacement: magnetite(-pyrrhotite); What was altered: endoskarn; Component: veins peripheral to breccias
phyllitization: chlorite-biotite--talc-clinochrysotile
sulphide alteration: chalcopyrite-pyrite-sphalerite-galena-tennantite-a
carbonatization
Mineralogy: (alteration): albite, Fe-chlorite (clinochlore), talc, garnet (grossular-andradite), diopside, epidote, orthoclase, sericite, titanite, anhydrite
(gangue): biotite, serpentine (clinocrysotile), Ca-amphibole, calcite
(mineralization): magnetite, hematite, pyrrhotite, pyrite, chalcopyrite, marcasite, arsenopyrite, mackinawite, pentlandite, loellingite, tennantite, valleriite, galena, sphalerite
Qualified comments: (Applies to: discovery and development) Discovered in 1994 by Rio Tinto by drilling a large magmetic anomaly 30 km SE of Marcona. The deposit is covered by sand.
References:
Hawkes, N.; Clark, A.; Moody, T. C., 2002
Marcona and Pampa de Pongo: Giant Mesozoic Fe-(Cu, Au) Deposits in the Peruvian Coastal Belt
Section The Americas, in Hydrothermal Iron Oxide Copper-Gold and Related Deposits: A Global Perspective, Volume 2, Edited by Porter, T. M., Australian Mineral Foundation, Adelaide, Australia, PGC Publishing, Adelaide, 377 p, p. 115 - 130

Injoque, J., 2002
Fe Oxide-Cu-Au Deposits in Peru: An Integrated View
Section The Americas, in Hydrothermal Iron Oxide Copper-Gold and Related Deposits: A Global Perspective, Volume 2, Edited by Porter, T. M., Australian Mineral Foundation, Adelaide, Australia, PGC Publishing, Adelaide, 377 p, p. 97 - 114

Sillitoe, 2003
Iron Oxide-Copper-Gold Deposits: An Andean View
Mineralium Deposita, Volume 38, p. 787 - 812

Resource data:
Disclaimer - Reserves/Resource Data

Her Majesty the Queen in Right of Canada, represented by the Minister of Natural Resources (NRCan) does not warrant or guarantee the accuracy, completeness or fitness for any purpose of Reserve and Resource information (Data) contained in this database, including whether the Data is compliant with any securities regulations or standards, and NRCan does not assume any liability with respect to any damage or loss incurred as a result of the use made of the Data.

Resource and reserve figures are historical in nature. The Data source provided with each set of figures should be cited if the Data are re-reported.

Estimate date: 2005-09-06; Component: 3 zones; 953 million metric tons ore; Combined with production?: no; Provisional entry?: yes; Resource category: inferred resource
Grade-commodity information:Fe: 44.7 percent
Cu: 12 percent
Au: 0.09 grams/metric ton
Reference: Anonymous, 2005: Cardero Announces Pampa de Pongo Inferred Resource of 953 Million Tonnes @ 44.7% Fe; Cardero Resource Corp., News Release, Internet
Percent weights allocated to deposit: 100.0%

Generated 2015-03-04 14:16:28 with GQuery -- 3.7 ADO (3.19..3.22 -- 2008-12-16)
GlobalDB System, Geological Survey of Canada, Natural Resources Canada