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Western Medial New Guinea Magmatic Belt

Eastern part of the late Miocene to Pliocene-Pleistocene Medial New Guinea Magmatic Belt

Tract ID142pCu7203
CountryIndonesia
CommodityCu
Study area nameSoutheast Asia and Melanesia
Tectonic settingpostconvergence
Deposit typeporphyry copper
Grade-tonnage modelPorphyry copper, Cu-Au subtype (Singer and others, 2008)
Geologic ageGeologic feature agelate Miocene through PleistoceneGeneralized ageTertiary-NeogeneOldest rocks age11.6MaYoungest rocks age9MaAge range2.6Ma
Identified Cu resources24,000,000metric tons
Known prospects12
Mean Cu (t/sq km)1055t/sq km
Map scales used250K, 1M, 2M

Results of the assessment

Assessment date2010
EstimatorsGilpin R. Robinson, Jr., Steve Ludington, Jane M. Hammarstrom, Michael L. Zientek, Arthur A. Bookstrom, Alexander Yan Sze Wah, Bambang Setiabudi, Dwi Sunuhadai
Assessment depth1km
Quantitative assessmentYes

Estimated number of deposits

Number of depositsConfidence level
190%
350%
1010%
105%
101%
Mean estimated deposits4.43±3.4(0.77%)
Probability of mean0.31
Probability of no copper0.06

Estimated deposit density

Known
deposits		Total
deposits		Area
(sq km)		Deposit density
per 100,000 sq km
15.4313,26841

Mean estimated tonnage

Copper14,000,000
Molybdenum80,000
Gold1,000
Silver4,500
Ore2,800

Undiscovered copper resource

Confidence level90%50%10%5%
Tonnage310,0006,500,00036,000,00054,000,000

Economic analysis

Fraser countryIndonesia
Fraser type0.13%
Fraser high0.88%
Typical cost0%
High cost1%
Infrastructure settingHigh cost
Comments on depthdefault
Expected depth distribution
0 – 250m0.25
250m – 500m0.25
500m – 1km0.5
Economically recoverable resources
Copper6,700,000t
Molybdenum28,000t
Gold330t
Silver2,100t
Probability no econ recoverable0.54
Econ NPV1,300x $1M
Exp dollars52.13x $1M/100,000 sq km
Exp value classHigh

Bibliographic references

GeneralHammarstrom and others (2013)
EconomicRobinson and Menzie (2012)

Hammarstrom, J.M., Bookstrom, A.A., Dicken, C.L., Drenth, B.J., Ludington, S., Robinson, G.R., Jr., Setiabudi, B.T., Sukserm, W., Sunuhadi, D.N., Wah, A.Y.S., and Zientek, M.L., with contributions from Cox, D.P., Jarnyaharn, P., Kopi, G., Ngoc, N.T.M., Otarawanna, P., Pei, C.S., Phany, U., Van Quy, Sakimoto, T., Saroa, D., Soares da Costa, N., Sotham, S., Sim, I.M., Trung, N.N., Wongsomasak, S., Yokarti, B., and Zaw, K., 2013, Porphyry copper assessment of Southeast Asia and Melanesia: U.S. Geological Survey Scientific Investigations Report 2010–5090–D, 332 p., http://pubs.usgs.gov/sir/2010/5090/d/.Robinson, G.R., Jr., and Menzie, W.D., 2012, Economic filters for evaluating porphyry copper deposit resource assessments using grade-tonnage deposit models, with examples from the U.S. Geological Survey global mineral resource assessment (ver 1.2, March 2014): U.S. Geological Survey Scientific Investigations Report 2010–5090–H, 21 p., http://pubs.usgs.gov/sir/2010/5090/h/.

Deposits and prospects associated with this tract

NameTypeStateCountryDevelopmentDetails
Pogatadi “E”prospectPapuaIndonesiaOccurrenceDetails
Tango OneprospectPapuaIndonesiaOccurrenceDetails
Mogo-mogoprospectPapuaIndonesiaOccurrenceDetails
ObanoprospectPapuaIndonesiaOccurrenceDetails
Papua Gold and Copper projectprospectPapuaIndonesiaOccurrenceDetails
Pogatadi “B”prospectPapuaIndonesiaOccurrenceDetails
Pogatadi “C” and “D”prospectPapuaIndonesiaOccurrenceDetails
IkerarprospectPapuaIndonesiaProspectDetails
Wabu skarnprospectPapuaIndonesiaProspectDetails
Aisasjur Gold/Copper ProjectprospectPapuaIndonesiaProspectDetails
DawaguprospectPapuaIndonesiaProspectDetails
KomopaprospectPapuaIndonesiaProspectDetails
GrasbergdepositPapuaIndonesiaProducerDetails

Western Medial New Guinea Magmatic Belt

Eastern part of the late Miocene to Pliocene-Pleistocene Medial New Guinea Magmatic Belt

Tract ID142pCu7203
CountryIndonesia
CommodityCu
Study area nameSoutheast Asia and Melanesia
Tectonic settingpostconvergence
Deposit typeporphyry copper
Grade-tonnage modelPorphyry copper, Cu-Au subtype (Singer and others, 2008)
Geologic ageGeologic feature agelate Miocene through PleistoceneGeneralized ageTertiary-NeogeneOldest rocks age11.6MaYoungest rocks age9MaAge range2.6Ma
Identified Cu resources24,000,000metric tons
Known prospects12
Mean Cu (t/sq km)1055t/sq km
Map scales used250K, 1M, 2M

Results of the assessment

Assessment date2010
EstimatorsGilpin R. Robinson, Jr., Steve Ludington, Jane M. Hammarstrom, Michael L. Zientek, Arthur A. Bookstrom, Alexander Yan Sze Wah, Bambang Setiabudi, Dwi Sunuhadai
Assessment depth1km
Quantitative assessmentYes

Estimated number of deposits

Number of depositsConfidence level
190%
350%
1010%
105%
101%
Mean estimated deposits4.43±3.4(0.77%)
Probability of mean0.31
Probability of no copper0.06

Estimated deposit density

Known
deposits		Total
deposits		Area
(sq km)		Deposit density
per 100,000 sq km
15.4313,26841

Mean estimated tonnage

Copper14,000,000
Molybdenum80,000
Gold1,000
Silver4,500
Ore2,800

Undiscovered copper resource

Confidence level90%50%10%5%
Tonnage310,0006,500,00036,000,00054,000,000

Economic analysis

Fraser countryIndonesia
Fraser type0.13%
Fraser high0.88%
Typical cost0%
High cost1%
Infrastructure settingHigh cost
Comments on depthdefault
Expected depth distribution
0 – 250m0.25
250m – 500m0.25
500m – 1km0.5
Economically recoverable resources
Copper6,700,000t
Molybdenum28,000t
Gold330t
Silver2,100t
Probability no econ recoverable0.54
Econ NPV1,300x $1M
Exp dollars52.13x $1M/100,000 sq km
Exp value classHigh

Bibliographic references

GeneralHammarstrom and others (2013)
EconomicRobinson and Menzie (2012)

Hammarstrom, J.M., Bookstrom, A.A., Dicken, C.L., Drenth, B.J., Ludington, S., Robinson, G.R., Jr., Setiabudi, B.T., Sukserm, W., Sunuhadi, D.N., Wah, A.Y.S., and Zientek, M.L., with contributions from Cox, D.P., Jarnyaharn, P., Kopi, G., Ngoc, N.T.M., Otarawanna, P., Pei, C.S., Phany, U., Van Quy, Sakimoto, T., Saroa, D., Soares da Costa, N., Sotham, S., Sim, I.M., Trung, N.N., Wongsomasak, S., Yokarti, B., and Zaw, K., 2013, Porphyry copper assessment of Southeast Asia and Melanesia: U.S. Geological Survey Scientific Investigations Report 2010–5090–D, 332 p., http://pubs.usgs.gov/sir/2010/5090/d/.Robinson, G.R., Jr., and Menzie, W.D., 2012, Economic filters for evaluating porphyry copper deposit resource assessments using grade-tonnage deposit models, with examples from the U.S. Geological Survey global mineral resource assessment (ver 1.2, March 2014): U.S. Geological Survey Scientific Investigations Report 2010–5090–H, 21 p., http://pubs.usgs.gov/sir/2010/5090/h/.

Deposits and prospects associated with this tract

NameTypeStateCountryDevelopmentDetails
Pogatadi “E”prospectPapuaIndonesiaOccurrenceDetails
Tango OneprospectPapuaIndonesiaOccurrenceDetails
Mogo-mogoprospectPapuaIndonesiaOccurrenceDetails
ObanoprospectPapuaIndonesiaOccurrenceDetails
Papua Gold and Copper projectprospectPapuaIndonesiaOccurrenceDetails
Pogatadi “B”prospectPapuaIndonesiaOccurrenceDetails
Pogatadi “C” and “D”prospectPapuaIndonesiaOccurrenceDetails
IkerarprospectPapuaIndonesiaProspectDetails
Wabu skarnprospectPapuaIndonesiaProspectDetails
Aisasjur Gold/Copper ProjectprospectPapuaIndonesiaProspectDetails
DawaguprospectPapuaIndonesiaProspectDetails
KomopaprospectPapuaIndonesiaProspectDetails
GrasbergdepositPapuaIndonesiaProducerDetails
Posted on 2 July 2023 in Geen categorie by melanesia

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