Grand Pacific Claim

The Grand Pacific Claim is a copper mine located in Coconino county, Arizona at an elevation of 6,099 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Name: Grand Pacific Claim

State:  Arizona

County:  Coconino

Elevation: 6,099 Feet (1,859 Meters)

Commodity: Copper

Lat, Long: 36.62972, -111.44528

Map: View on Google Maps

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.


Satelite image of the Grand Pacific Claim

Grand Pacific Claim MRDS details

Site Name

Primary: Grand Pacific Claim
Secondary: Mardun
Secondary: White Mesa
Secondary: Navajo Pacific
Secondary: Zontelli Western


Commodity

Primary: Copper
Tertiary: Silver


Location

State: Arizona
County: Coconino


Land Status

Not available


Holdings

Not available


Workings

Not available


Ownership

Not available


Production

Year: 1955
Time Period: - 1955
Material type: ORE CU
Description: Cp_Grade: ^0.74 % Cu


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Replacement
Operation Type: Unknown
Year Last Production: 1967
Discovery Year: 1885
Years of Production:
Organization:
Significant: N
Deposit Size: M


Physiography

Not available


Mineral Deposit Model

Not available


Orebody

Form: TABULAR


Structure

Type: L
Description: 10 Mi E Of Echo Cliffs Monocline


Alterations

Alteration Type: L
Alteration Text: Oxidation Of Copper Sulfiors Was Strong


Rocks

Name: Sandstone
Role: Host
Age Type: Host Rock
Age Young: Late Jurassic


Analytical Data

Analytical Data: 12 CHANNEL SAMPLES PRODUCED THE FOLLOWING INFORMATION: 6 SAMPLES PRODUCING 0.23 OZ. AG AND 1.02 % CU, 3 SAMPLES PRODUCING 0.18 OZ. AG AND 0.82 % CU, 3 SAMPLES PRODUCING 0.21 OZ. AG AND 0.44 % CU, AVERAGE OF 0.82 % CU.


Materials

Ore: Chrysocolla
Ore: Cuprite
Ore: Malachite
Ore: Chalcocite
Ore: Bornite
Gangue: Limonite


Comments

Comment (Commodity): MAJOR AND MINOR MINERALS ARE REPRESENTATIVE OF THE WHOLE WHITE MESA DISTRICT.

Comment (Production): ITEM 8 : TOTAL TONNAGE PRODUCED UP TO 1955

Comment (Development): OPERATED BY MARDUN COPPER CO., 1941-43, CORONADO COPPER AND ZINC, 1943-45. 1917, NAVAJO COPPER COMPANY. IN 1960'S,OPERATED BY ZONTELLI WESTERN CO AND WHITE MESA CO.

Comment (Deposit): AREA OF MINERALIZED BODY EQUALS 350,000 SQ. FT. COPPER MINERALS COAT SANDSTONE GRAINS AND REPLACE CEMENTING MATERIAL.

Comment (Reserve-Resource): COPPER ORE RESERVES ARE BROKEN DOWN AS FOLLOWS: 14,000,000 TONS OF INFERRED ORE IN CONCEALED ORE BODIES, 1,645,000 TONS OF INDICATED ORE IN PROBABLE EXTENSIONS, AND 615,000 TONS OF INDICATED ORE BEING REASONABLY ASSURED. THESE FIGURES ARE REPRESENTATIVE OF THE WHOLE WHITE MESA DISTRICT.

Comment (Deposit): THE INFORMATION FOUND UNDER RESERVES AND POTENTIAL RESOURCES; DESCRIPTION OF DEPOSIT (EXCLUDING HOST ROCK TYPE); AND MAIN AND MINOR ORE MINERALS ARE REPRESENTATIVE OF THE WHOLE WHITE MESA MINING DISTRICT. GRAND PACIFIC CLAIM BEING JUST ONE OF THE CLAIMS THAT COMPRISE THIS DISTRICT. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Comment (Workings): OPEN PIT OPERATION, 75 FT DEEP IN 1960'S

Comment (Geology): IT IS UNCERTAIN IF DEPOSIT IS METRORIC OR TELETHERMAL.

Comment (Deposit): Discovery Year: 1880'S


References

Reference (Deposit): MAYO, E. B., 1955 , METILLIFEROUS MINERALS AND MINERAL FUELS, MINERAL RESOURCES, NAVAJO-HOPI INDIAN RESERVATION, ARIZONA-UTAH, VOLUME I, P. 19 - 32 .

Reference (Deposit): READ, C. B., 1943 , COPPER DEPOSITS OF THE WHITE MESA MINING DISTRICT, COCONINO CO., ARIZONA: USGS OPEN FILE REPORT.

Reference (Deposit): USBM CARD FILES.

Reference (Deposit): ADMR MARDUN MINE FILE

Reference (Deposit): ABGMT-USBM FILE DATA.

Reference (Production): MAYO, 1955


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