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
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Mazama MRDS details
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.
Washington Gold
"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.
