Porphyry Gold Deposits - Cmi Capital Limited

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POGO REGIONAL SETTING 65 o 147 o 146 o 145 o 144 o 64 o N Sillimanite isograd Pogo Surficial deposits Shaw Creek Fault Big Delta Delta Junction Surficial deposits Post Metamorphic Igneous Rocks Volcanic & sedimetary rocks Tertiary granite 0 25 50 Km Metamorphic rocks Ultramafic rocks. High and Intermediate-pressure amphibolitefacies gneiss, schist, amphibolite, and marble. Greenschist-facies schist, semischist, quartzite, marble, greenstone and phyllite. Amphibolite-facies schist, gneiss, augen gneiss, amphibolite, quartzite, and minor marble. Strongly metamorphosed pluton. Amphibolite facies. Cretacous granite Prehnite-pumpellyite and greenschist-facies quartzite, argillite, phyllite, and minor metalimestone. (Smith et al., 1999)
Pogo Surface Plan Goodpaster River L1 Zone UPPER CAMP L2 Zone UPPER ORE ACCESS LOWER . CAMP PORTAL LOWER ORE ACCESS Liese Creek 0 1,500 ft Pogo Creek Pogo Ridge
Page 1 and 2: “PORPHYRY” GOLD DEPOSITS SE Eur
Page 3 and 4: NOMENCLATURE • Porphyry Au (Holli
Page 5 and 6: MAGMAS & METALS 10 9 8 7 Na2O + K2O
Page 7 and 8: MAGMAS & METALS 10 oxidised Cu-Au W
Page 9 and 10: LOCATION OF MAJOR GRANITE RELATED G
Page 11 and 12: TINTINA GOLD BELT 0 500 kilometres
Page 13 and 14: FORT KNOX (> 5 M.oz.)
Page 15 and 16: FORT KNOX (looking W) N S 50m Schis
Page 17 and 18: FORT KNOX
Page 19 and 20: DUBLIN GULCH (Maloof et al, 2001)
Page 21 and 22: Shallow-level examples Donlin Creek
Page 23 and 24: TIMBARRA GRANITE FACIES & Au (Musta
Page 26 and 27: SHOTGUN (~1 M.oz.) (Rombach & Newbe
Page 28 and 29: KIDSTON AUSTRALIA ~4 M.oz. (Baker &
Page 30 and 31: DONLIN CREEK (>25 M.oz.) (Ebert et
Page 33: Shallow-level examples Donlin Creek
Page 37 and 38: POGO
Page 39 and 40: POGO (> 5 M.oz.) (Smith et al., 199
Page 41 and 42: LOCATION OF MAJOR INTRUSION RELATED
Page 43: CONCLUSIONS: GRANITE RELATED GOLD S

Porphyry Gold Deposits - Cmi Capital Limited

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