GRADE AND TONNAGE MODEL OF PORPHYRY Cu

By Donald A. Singer, Dan L. Mosier, and Dennis P. Cox

COMMENTS All porphyry copper deposits with available grades and tonnages were included in these plots in order to provide a model for cases where it is not possible to use the gold-rich or molybdenum-rich models. Parts of the porphyry copper deposits which could be considered skarn wereincluded in these data. Gold grade is correlated with tonnage (r = -0.49, n = 81) and with molybdenum grade (r = -0.45, n = 55). See figs. 51-53.

Figure 51. Tonnages of porphyry Cu deposits. Individual digits represent number of deposits. [Because of limitations on the reproduction of the original figure, these numbers cannot be distinguished in the figure.]

fig 51

Figure 52. Copper grades of porphyry Cu deposits. Individual digits represent number of deposits. [Because of limitations on the reproduction of the original figure, these numbers cannot be distinguished in the figure.]

fig 52

Figure 53. By-product grades of porphyry Cu deposits. A, Silver. B, Gold. C, Molybdenum. Individual digits represent number of deposits. [Because of limitations on the reproduction of the original figure, these numbers cannot be distinguished in the figure.]

fig 53

DEPOSITS

Name Country

Afton CNBC

Ajax CNBC

Ajo USAZ

Am CNBC

Amacan PLPN

Andacolla CILE

Ann CNBC

Ann Mason USNV

Arie PPNG

Atlas Carmen PLPN

Atlas Frank PLPN

Atlas Lutopan PLPN

Axe CNBC

Aya Aya PLPN

Bagdad USAZ

Basay PLPN

Bear USNV

Bell Copper CNBC

Berg CNBC

Bethlehem CNBC

Big Onion CNBC

Bingham USUT

Bisbee USAZ

Bluebird USAZ

Bond Creek USAK

Boneng Lobo PLPN

Bozshchaku URRS

Brenda CNBC

Brenmac USWA

Butilad PLPN

Butte USMT

Campanamah AGTN

Cananea MXCO

Canariaco PERU

Cariboo Bell CNBC

Carpenter USAZ

Cash CNYT

Casino CNYT

Castle Dome USAZ

Catface CNBC

Catheart USME

Cerro Blanco CILE

Cerro Colorado CILE

Cerro Colorado PANA

Cerro Verde PERU

Chaucha ECDR

Chuquicamata CILE

Coalstoun AUQL

Copper Basin USAZ

Copper Cities USAZ

Copper Creek USAZ

Copper Flat USNM

Copper Mountain CNBC

Cordon PLPN

Cuajone PERU

Cubuagan PLPN

Dexing CINA

Dizon PLPN

Dorothy CNBC

Dos Pobres USAZ

Eagle CNBC

El Abra CILE

El Arco MXCO

El Pachon AGTN

El Salvador CILE

El Soldado CILE

El Teniente CILE

Elatsite BULG

Ely USNV

Escondida CILE

Esperanza CILE

Exotica CILE

Fish Lake CNBC

Florence USAZ

Frieda River PPNG

Galaxy CNBC

Galore Creek CNBC

Gambier Island CNBC

Gaspe CNQU

Gibraltar CNBC

Glacier Peak USWA

Granisle CNBC

Hale-Mayabo PLPN

Heddleston USMT

Helvetia USAZ

Highmont CNBC

Hinobaan PLPN

Huckleberry CNBC

Ingerbelle CNBC

Inguaran MXCO

Ino-Capaya PLPN

Inspiration USAZ

Iron Mask CNBC

Island Copper CNBC

Ithaca Peak USAZ

June CNBC

Kadzharan URAM

Kalamaton PLPN

Kalamazoo-San Manuel USAZ

Kalmakyr URUZ

Kennon PLPN

King-King PLPN

Kirwin USWY

Kounrad URKZ

Krain CNBC

Kwanika CNBC

La Alumbrera AGTN

La Caridad MXCO

La Florida MXCO

La Verde MXCO

Lakeshore USAZ

Lights Creek USCA

Lornex CNBC

Lorraine CNBC

Los Bronces CILE

Los Pelambres CILE

Los Pilares MXCO

Lumbay PLPN

Luna-Bash PLPN

MacArthur USNV

Maggie CNBC

Majdanpek YUGO

Mamut MLYS

Mantos Blancos CILE

Mapula PLPN

Marcopper PLPN

Margaret USWA

Marian PLPN

Mazama USWA

Metcalf USAZ

Michiquillay PERU

Middle Fork USWA

Mineral Butte USAZ

Misty CNBC

Mocha CILE

Mocoa CLBA

Moniwa BRMA

Morenci USAZ

Morococha PERU

Morrison CNBC

Mountain Mines PLPN

Mount Canninda AUQL

Namosi East FIJI

Namosi West FIJI

North Fork USWA

Ok CNBC

Ok Tedi PPNG

Orange Hill USAK

Pampa Norte CILE

Panguna PPNG

Paramillos AGTN

Parks AUNS

Pashpap PERU

Petaquilla PANA

Philippine PLPN

Pima-Mission USAZ

Plurhinaler THLD

Poison Mountain CNBC

Potrerillos CILE

Primer CNBC

Quebrada Blanca CILE

Quelleveco PERU

Ray USAZ

Recsk HUNG

Red Chris CNBC

Red Mountain USAZ

Rio Blanco CILE

Rio Vivi PTRC

Sacaton (E-W) USAZ

Safford (KCC) USAZ

Saindak East PKTN

Saindak North PKTN

Saindak South PKTN

Samar PLPN

San Antonio PLPN

San Fabian PLPN

San Juan USAZ

San Xavier USAZ

Sanchez USAZ

Santa Rita USNM

Santo Nino PLPN

Santo Tomas MXCO

Santo Tomas PLPN

Sar Cheshmeh IRAN

Schaft Creek CNBC

Sierra Gorda CILE

Silver Bell USAZ

Sipalay PLPN

Star Mt.-Fubilan PPNG

Star Mt.-Futik PPNG

Star Mt.-Nong River PPNG

Star Mt.-Olgal PPNG

Sugarloaf Hill CNBC

Tagpura PLPN

Tanama PTRC

Tawi-Tawi PLPN

Taysan PLPN

Toledo PLPN

Toquepala PERU

Trojan CNBC

Twin Buttes USAZ

Tyrone USNM

Valley Copper CNBC

Vekol USAZ

Washington MXCO

Yandera PPNG

Yeoval AUNS

Yerington USNV