Mining and Minerals Policy Act of 1970 (Public Law 91-631, Dec. 31, 1970). Total resources for purposes of these appraisal estimates include currently minable resources (reserves) as well as those resources not yet discovered or not cur rently profitable to mine. The mining of mineral deposits, once discovered, depends on geologic, eco
More than half of the 25 largest known porphyry copper deposits, in terms of contained copper metal, formed during three time periods: the Paleocene to Eocene, Eocene to Oligocene, and middle Miocene to Pliocene. These giant deposits are clustered
Total Resources And Reserves Of Tedi Porphyry Deposit. resource that is substantially higher than Ok Tedi's contained metals (313 Mt of Copper and,earlier drilling has resulted in the addition to the total porphyry resource of around 105Mt averaging 08%Cu and 041g/t Au (calculated at a 05%Cu cut off),At least five known porphyry deposits occur in this area but …
The world's second-largest copper mine, Collahuasi, produced 559,000 Mt of copper in 2018. The world's second-deepest open-pit copper mine, Codelco's massive Chuquicamata deposit in Chile ...
The Ok Tedi porphyry Cu-Au deposit in Papua New Guinea is a world-class mineral deposit. In its pre-mining stage, it contained 5.5 Mt Cu and 18.1 Moz Au; skarn accounts for ~80% of the current 1.9 Mt Cu and 7.7 Moz Au in total resources. Two composite felsic stocks intruded a tectonostratigraphic sequence of clastic and carbonate rocks at ~1.16 ± 0.10 …
Porphyry deposits are hosts to one of the most important economic mineral associations (Cooke et al., 2005, Halter et al., 2005, Heinrich et al., 2004, Mutschler et al., 2010, Sillitoe, 2010), accounting for ~ 80% Cu and ~ 95% Mo of the world's total reserves.It is also an important resource of Au, Ag, Zn, Sn and W.
The Ok Tedi porphyry copper-gold deposit in western Papua New Guinea was discovered and tested by a subsidiary of Kennecott Copper Corporation in 1968-1971. Exploration lapsed in 1972-1975 while Kennecott and the government of Papua New Guinea sought agreement on terms which would apply to any future mining operation.
Ok Tedi's main ore body includes both porphyry and skarn ores. The skarn ores are very high grade, and supply approximately 50 percent of the contained ore reserves. Junior mining companies with ...
THE MINES MAGAZINE, MANAGING OK TEDI, DEC. 1984, P. 2-4. Deposit. INTERNATIONAL MINING, A VAST INVESTMENT, $1,200 MILLION, BUT HUGE RETURNS ARE EXPECTED FROM THIS LARGE COPPER/GOLD RESOURCE. DEVELOPEMENT OF THE MINE REQUIRED OVERCOMING SEVERE DIFFICULTIES, BY GEORGE ARGALL, FEB. 1985, P. …
Platinum-group elements in porphyry copper deposits: a - Springer- total resources and reserves of tedi porphyry deposit,2 Federal Institute for Geosciences and ... Read More Part Three Resources and Technology Princeton University HomeThe three main categories of copper deposits …
The U.S. Geological Survey completed the first-ever global assessment of undiscovered copper resources for the two most significant sources of global copper supply: porphyry copper deposits and sediment-hosted stratabound copper deposits. The geology-based study identified 236 areas for undiscovered copper in 11 regions of the world. …
Ok Tedi Ok Tedi is a large porphyry copper-gold deposit in PNG, approximately 500 km to the east of Grasberg in the same porphyry trend. The orebody is associated with a Pliocene diorite-monzodiorite complex and had reserves in 1995 of 460 Mt @ 0.71% Cu, 0.7 g/t Au.
fluid dynamics in the porphyry environment Therefore: Not only do skarns provide vectors to ore but they may provide clues as to scale of blind porphyries Recognition of skarn mineralisation at Big Cadia was important to the recognition of the large Cadia Porphyry System. Don't forget the poor "little" skarns at your porphyry!
the world-class boddington deposit (total resources at 31 december 2010 of 1.53 gt grading 0.102 cu and 0.579 g/t au), in the saddleback greenstone belt of the southwest terrain of the yilgarn craton, is interpreted as a 2707 ma porphyry cu-au deposit. Ok Tedi, Porphyry Copper Deposit. deposit type porphyry copper deposit subtype cu-au age (ma ...
Porphyry Cu deposits in China contain a total resource of ∼47 million tonnes (Mt) Cu at average grades ranging mostly from 0.2 to 0.7% Cu (most . 0.5% Cu), accounting for 42% of China's Cu reserves. In terms of contained Cu, 14 Cu-rich porphyry deposits are classified as giant (≥2.0 Mt Cu), and 38 are classified as intermediate (≥0.06 Mt Cu).
These deposits provide over 60% of the world's copper and include other important metals such as molybdenum, gold and silver. Porphyry copper deposits are known for their low grades and very high tonnage. A porphyry is not a rock type, but rock with a particular texture. This porphyritic rock has large feldspar crystals in a finer grained matrix.
The Ok Tedi Intrusive Complex in Papua New Guinea is dominantly composed of shoshonitic monzonite to monzodiorite. It is associated with one of the world's largest Au-rich porphyry Cu deposits (PCDs). The first zircon U-Pb zircon crystallization age determination for the Ok Tedi intrusions obtained using SHRIMP analysis are presented here. The mean concordant age of …
Porphyry copper deposits comprise three broad types: plutonic, volcanic, and those we will call "classic". The general characteristics of each are illustrated in photographs linked near the bottom of this page.&. 1. Plutonic porphyry copper deposits occur in batholithic settings with mineralization principally occurring in one or more phases of ...
Porphyry deposits can be ... Responsible for about 5 percent of the world's total copper output ... Escondida's proven and probable reserves totaled 26.2 billion tonnes grading 0.523 percent ...
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Total Resources And Reserves Of Tedi Porphyry Deposit. ... · The world-class Boddington deposit (total resources at 31 December 2010 of 1.53 Gt grading 0.102% Cu and 0.579 g/t Au), in the Saddleback Greenstone Belt of the Southwest Terrain of the Yilgarn Craton, is interpreted as a ∼ 2707 Ma porphyry Cu-Au deposit ...
The Ok Tedi porphyry Cu-Au deposit in Papua New Guinea is a world-class mineral deposit. In its pre-mining stage, it contained 5.5 Mt Cu and 18.1 Moz Au; skarn accounts for ~80% of the current 1.9 Mt Cu and 7.7 Moz Au in total resources. Two composite felsic stocks intruded a tectonostratigraphic sequence of clastic and carbonate rocks at ~1.16 ...
Of the 267 total deposits in our database, some 160 have mineral resources reported using statutory mining codes (e.g., JORC, NI43-101, SAMREC), with the …
total resources and reserves of tedi porphyry deposit; total resources and reserves of tedi porphyry deposit. the deposit is a porphyry molybdenum system kt of reserves to paramarginal, the deposit contained which show the deposit has total resource of porphyry gold deposits of the refugio district, 0361 0128/00/2096/1445 28 $6.00 1445 introduction over …
The Ok Tedi porphyry and skarn copper-gold deposits on Mount Fubilan (2053 mASL) are located in the Star Mountains of far western Papua New Guinea, 18 km east of the Indonesian border. The pre-mining deposits contained approximately 4.8 Mt of copper and 490 tonnes of gold (actual metal production + full metal content of reserve).
total resources and reserves of tedi porphyry deposit. Abstract. The Ok Tedi porphyry Cu-Au deposit in Papua New Guinea is a world-class mineral deposit. In its pre-mining stage, it contained 5.5 Mt Cu and 18.1 Moz Au; skarn accounts for ~80% of the current 1.9 Mt Cu and 7.7 Moz Au in total resources. Get More
The average age of the porphyry stocks is 9 Ma (Upper Miocene). The total reserves of the deposit were 179 Mt of Cu grade 0.476% (Akiyama, 1984). Other metal contents were Pb, 102 ppm, Zn, 103 ppm, Ag, 2.5 gt −1; Au, 0.66 gt −1; Mo, 7.15 ppm and S, 2.28%. The ore body was only about one-seventh the size of the Atlas Mine of Cebu.
Total Resources And Reserves Of Tedi Porphyry Deposit. The Ok Tedi porphyry CuAu deposit in Papua New Guinea is a worldclass mineral deposit In its premining stage, it contained 55 Mt Cu and 181 Moz Au skarn accounts for 80% of the current 19 Mt Cu and 77 Moz Au in total resources Two composite felsic stocks intruded a tectonostratigraphic sequence of clastic …
A resource is that amount of a geologic commodity that exists in both discovered and undiscovered deposits—by definition, then, a "best guess.". Reserves are that subgroup of a resource that have been discovered, have a known size, and can be extracted at a profit. For example, of the world's estimated oil resource of three trillion ...
The Ok Tedi porphyry Cu-Au deposit in Papua New Guinea is a world-class mineral deposit. In its pre-mining stage, it contained 5.5 Mt Cu and 18.1 Moz Au; skarn accounts for ~80% of the current 1.9 Mt Cu and 7.7 Moz Au in total resources. Two composite felsic stocks intruded a tectonostratigraphic sequence of clastic
jorc code reserves comprise total resources in proven and regions and at existing deposits. total drilling in wa and the porphyry related baguio mineral district the baguio the baguio mineral district, 13 ok tedi porphyry / skarn copper gold 29.1 • total known resource of 65 mt @ 0.40% cu + 0.38 g/t au
Porphyry copper deposits carrying more than 0.4 gm/ton gold are briefly described from northwest Argentina, northwest Pakistan, the Intermontane belt of British Columbia, the Philippines, Sulawesi, Papua New Guinea, Sabah and Puerto Rico. Gold is normally present in potassium silicate alteration, which commonly carries an unusually high magnetite content. …