Mazama

The Mazama is a copper mine located in Okanogan county, Washington.

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

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.

Site Name

Primary: Mazama
Secondary: Lesley

Commodity

Primary: Copper

Location

State: Washington
County: Okanogan
District: Mazama

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Owner Name: Centurion Mines Corp.
Percent: 100.0
Home Office: Utah
Info Year: 1993
Years: 1992 -

Production

Not available

Deposit

Record Type: Deposit
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: L

Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Northern Cascade Mountains

Mineral Deposit Model

Model Name: Porphyry Cu

Orebody

Form: BRECCIA PIPE, STOCKWORK

Structure

Type: R
Structure: Goat Peak Syncline

Type: L
Structure: Fracturing

Type: R
Description: The Fawn Peak Stock Was Probably The Intrusive Rock Core Of An Island Arc (Riedell, 1979)

Alterations

Alteration Type: L
Alteration: Propylitic

Alteration Type: L
Alteration: Phyllic

Alteration Type: L
Alteration: Potassic

Rocks

Name: Andesite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous

Name: Andesite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Cretaceous

Analytical Data

Analytical Data: AVG 0.36% Cu

Materials

Ore: Chalcopyrite
Ore: Bornite
Gangue: Magnetite
Gangue: Sericite
Gangue: Quartz
Gangue: Oligoclase
Gangue: Chlorite
Gangue: Biotite
Gangue: Pyrite
Gangue: Pyrrhotite

Comments

Comment (Geology): THE FAWN PEAK STOCK IS AN ELONGATE, NORTHWEST-TRENDING INTRUSION ALONG THE NORTHEAST SIDE OF THE METHOW RIVER VALLEY; IT IS SITUATED ALONG THE AXIS OF THE GOAT PEAK SYNCLINE. THE STOCK CONSISTS OF FINELY TO COARSELY CRYSTALLINE DIORITE, PORPHYRITIC QUARTZ DIORITE, PLAGIOCLASE PORPHYRY, AND INTRUSION BRECCIA. THE PORPHYRITIC ROCKS OCCUR ALONG THE BORDER OF THE STOCK. THE STOCK INTRUDES THE WINTHROP SANDSTONE AND THE MIDNIGHT PEAK FORMATION. THE SANDSTONE CONTAINS EPIDOTE (HORNFELS) ALTERATION. SWARMS OF PORPHYRITIC SILLS AND DIKES EXTEND AS MUCH AS 1 KM FROM THE STOCK. THE INTRUSIVE BRECCIA IS A PIPELIKE BODY AND CONSISTS OF SUBROUNDED CLASTS AS MUCH AS 10 IN. LONG OF DIORITE, QUARTZ DIORITE, ANDESITE, AND ANDESITE PORPHYRY IN A MATRIX OF PLAGIOCLASE PORPHYRY. THREE K-AR MAGMATIC BIOTITE AGES FOR THE STOCK AVERAGED 88 M.Y. ALTERED ROCK IN THE STOCK YIELD K-AR SECONDARY BIOTITE AGES OF 85.1 +/- 3.5 M.Y. AND 69.7 +/- 2.9 M.Y.

Comment (Deposit): THIS DEPOSIT CONSISTS OF UNPATENTED MINING CLAIMS. ; INFO.SRC : 1 PUB LIT

Comment (Production): THERE IS NO RECORDED PRODUCTION. QUARTZ VEINS 0.5 MI. TO THE SOUTH AT THE MAZAMA PRIDE MINE PRODUCED 37 TONS OF ORE IN 1931, WHICH CONTAINED COPPER AND 0.7 OZ/TON AU.

Comment (Development): EXPLORED (1990) BY VANDERBILT GOLD CORP. CONSIDERABLE DRILLING WAS CONDUCTED BY BEAR CREEK, NORANDA, INSPIRATION DEVELOPMENT CO., AND QUINTANA. BEAR CREEK AND INSPIRATION SPENT $700,000 ON DRILLING.

Comment (Commodity): TRACES OF MO AND W HAVE BEEN FOUND IN PHYLLIC AND PROPYLITIC ZONES, GOLD IN WIDELY SEPARATED VEINS

Comment (Development): SEVERAL COMPANIES CONDUCTED DRILLING PROGRAMS. IN 1992, CENTURION MINES WAS DOING GEOLOGIC MAPPING OF PORPHYRY COPPER AREA

References

Reference (Deposit): DERKEY, R.E., GULICK, C.W., LINGLEY, W.S., JR., 1993, WASHINGTON'S MINERAL INDUSTRY - 1992: WASHINGTON GEOLOGY, V. 21, NO. 1, P. 3-25.

Reference (Deposit): WASH. GEOLOGIC NEWSLETTER, V. 18, NO. 1, MAR. 1990, P. 9, 17

Reference (Deposit): HOLLISTER, V.F., 1979, PORPHYRY COPPER-TYPE DEPOSITS OF THE CASCADE VOLCANIC ARC, WASHINGTON: MINERALS SCIENCE AND ENGINEERING, V. 11, P. 27-28.

Reference (Deposit): HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS-PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, 428 P.: V. 2, 67 P.

Reference (Deposit): STOFFEL, K.L.; MCGRODER, M.F., COMPILERS, 1990, GEOLOGIC MAP OF THE ROBINSON MOUNTAIN 1:100,000 QUADRANGLE, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN FILE REPORT 90-5, 39 P., 1 PL.

Reference (Deposit): UNPUBLISHED INFORMATION: VANDERBILT GOLD CORPERATION, 1989, MAZAMA PROJECT DESCRIPTION. THIS REPORT IS IN DGER FILES

Reference (Deposit): DERKEY, R.E.; JOSEPH, N.L.; LASMANIS, R., 1990, METAL MINES OF WASHINGTON-PRELIMINARY REPORT: STATE OF WASHINGTON, DEPARTMENT OF NATURAL RESOURCES, DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, 577 P.

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"Where to Find Gold in Washington" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Arizona. Read more: Where to Find Gold in Washington.