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Papua New Guinea<br />
- ltz<br />
Tfe island group with the largest land area and the greatest mineral wealth is Papua<br />
New Guinea (Table I). The mountainous axis of rnsinland Papua New Guinea is collisional<br />
terrein which contains a considerable mineral wealth and the potential for more discoveries.<br />
Notable are the Ok Tedi porphyry copper-gold mine, anrrently being developed' the Frieda<br />
River copper-gold prospect, gold at Porgera and on Misima Island, copper at Yandera'<br />
lateritic nickel and chromium at Ramu, and Morobe detrital chromite (Table 2).<br />
Country Pqulation<br />
(thousands)<br />
Australia<br />
Ppua New Guinea<br />
Solomon Islands<br />
New Caledonia<br />
Fiji<br />
Vanuatu<br />
Western Samoa<br />
Kiribeti<br />
Tmga<br />
Tuvalu<br />
Neuru<br />
Table I : Mineral production in Pacific countries (f980)<br />
r5rm0<br />
t,m0<br />
17t<br />
t2r<br />
5tr<br />
89<br />
l5r<br />
48<br />
92<br />
I<br />
Area Value of annual<br />
,, 2, mineral oroduction<br />
(Km / ($ mittion)<br />
7 16861849<br />
46L1690<br />
28,160<br />
I9r099<br />
L8r274<br />
L4176t<br />
2,841<br />
718<br />
696<br />
26<br />
7 1429<br />
485<br />
J50<br />
10<br />
t00<br />
0.6<br />
Value per Value per<br />
t m2 ($) capita ($)<br />
966<br />
1,050<br />
2?<br />
L8,t26<br />
7 2L<br />
4r762|DOO 141286<br />
547<br />
494<br />
t61<br />
2,89t<br />
The northeastern mainland and the adjoining islands are volcanic terrain. Typical is<br />
Bougeinville Island which is constructed of rmdern volcanoes and uplifted coral reef, on a<br />
besement of partly-eroded older volcenoes end their feeder intrusive rocks. The Bougainville<br />
porphyry copper-gold mine is the fourth-largeet mine of this type in the world; ennual<br />
production is about 1701000 tonnes copper, 20 tonnes gold and 45 tonnes silver (nptal content<br />
of concentrate).<br />
Tfc epi-cratonic sediments of Pryua New Guinea and sodimenls of the collision terrain<br />
are prospective for petroleum, and a number of as yet uncommercial discoveries heve been<br />
mede (Teble 2) including the l98l discovery of gas and gas condensate in the Juha well. The<br />
volcanic terrain of Pryua New Guinea includes some thick aedimenlary basins and is elso<br />
considered pnospective for hydrocarbcre, although no indicetions have been found to date.<br />
Another enargy reoourc€ of Ppue New Guinea, by virtue of its large land area'<br />
rmuntainoue terrain, end relatively high rainfall, is the hydro-eleetric potential of ite rivers.<br />
TNs hes been estimeted at l2rm0 negawatte, of which slightly less then I00 nngawatts has<br />
been developed.<br />
l9<br />
t.5
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