Description
Alluvial Gold Was Originally Discovered In The Pogera River 1933-1939; Lodes Discovered By The Australian Bureau Of Mineral Resources 1967. (Cotton, 1975); (Fleming Et Al., 1986)
Commodities
PrimaryGold, Silver
TertiaryCopper, Lead, Zinc
Commodity typeM
Deposit
Deposit sizeY
Orebody formIRREGULAR
Ore controlIntense Fracture Patterns Control The Shape And Distribution Of Intrusions And Microscopic Veining Which Localize Mineralization.
Materials
Ore mineralsChalcopyrite, Galena, Gold, Marcasite, Pyrite, Silver, Sphalerite, Tetrahedrite
GangueBarite, Calcite, Chalcedony, Dolomite, Siderite
Geology
Host rockClastic Sedimentary Rock,Black Shale,Sandstone · Chim
Associated rockDiorite,Gabbro,Andesite,Basalt,Plutonic Rock · Porgera Intrusives
StructureEast-Trending Steeply Dipping Roamane Fault. Extensive Zones Of Brecciation., Thrusts And Steeply Dipping Faults, Fractures And Multiple Veins. Banded And Colloform Textures .
Tectonic settingPapaun Fold Belt. Active Or Failed Subduction Zones.
AlterationEarly Low Grade Propylitic Assemblages Of Chlorite And Calcite Overprinted By Phyllic Assemblages Of Sericite And Dolomite, Subordinate Quartz And Clay.
Economic & production
Development statusProducer
Discovery year1933
Identification
Deposit ID10055079
MRDS IDRE00015
RegionOC
Data scoreB
Coordinates-5.46459, 145.08219
References
FLEMING, A. W., HANDLEY, G. A., ET AL. 1986 THE PORGERA GOLD DEPOSIT, PAPUA NEW GUINEA: ECONOMIC GEOLOGY V.81, PP. 660-680.HENRY, D.D., 1988, PORGERA-THE FIRST FIFTY YEARS: BICENTENNIAL GOLD '88; GEOLOGICAL SOCIETY OF AUSTRALIA ABSTRACT SERIES 22, PP. 144-149.KLIPFEL, P.D. 1987, OVERVIEW PRESENTED OF MINERAL EXPLORATION AND DEVELOPMENT ACTIVITIES IN THE SOUTHWEST PACIFIC: MINING ENGINEERING, OCT., PP.919-926.COX, D.P., WILLIAMSON, A. ET AL., MINERAL DEPOSIT MODELS APPLICABLE TO PAPUA NEW GUINEA: USGS UNPUBLISHED REPORT 86/5.KLIPFEL, P.D. , 1987, P.926