Golden Zone Mine

The Golden Zone Mine is a gold, silver, and copper mine located in Alaska.

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: Golden Zone Mine

Commodity

Primary: Gold
Primary: Silver
Primary: Copper
Secondary: Lead
Tertiary: Zinc
Tertiary: Antimony
Tertiary: Tin

Location

State: Alaska

Land Status

Not available

Holdings

Not available

Workings

Type: Surface/Underground

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1941
Year Last Production: 1942
Discovery Year: 1909
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Form: PIPE

Structure

Type: L
Description: Bryn Mawr Fault Bounds The Eastern Extent Of Golden Zone Mineralization

Alterations

Alteration Type: L
Alteration Text: Pervasive Sericitization, Quartz Flooding And Formation Of Fe Bearing Carbonate In Breccia Pipe

Rocks

Name: Siltstone
Role: Associated
Age Type: Host Rock Unit
Age Young: Paleocene

Analytical Data

Analytical Data: ARSENOPYRITE-RICH BRECCIA: 14.8 PPM AU, 105 PPM AG, GREATER THAN 10,000 PPM AS, 50PPM BI, TRACE CO, 5000 PPM CU, TRACE NI, 700 PPM PB, 500 PPM SB, 50PPM SN, 2000 PPM ZN, 15 PPM FE, (SEMIQUANTITATIVE DATA), USGS PP 758-B, P. B16 TABLE 4
Analytical Data: 10PPM CO, 2000 PPM CU, 15PPM NI, 500 PPM PB, 500 PPM SB, 15 PPM NI, 3 PPM FE
Analytical Data: ATOMIC ABSORPTION ANALYSIS OF ARSENOPYRITE-RICH VEIN: 36.0 PPM AU, 30 PPM AG, GREATER THAN 10,000 PPM AS, 15 PPM BI
Analytical Data: 200 FT LEVEL: 0.23 OZ/TON AU, 1.25 OZ/TON AG, 9.5% FE, 14.9% AS, 0.24% CU, 0.05% PB, 0.05% ZN, COMPOSITE CHANNEL SAMPLES USED IN MILL TESTS, USGS PP 758-B, P. B15
Analytical Data: 100 FT LEVEL: 0.18 OZ/TON AU, 3.4 OZ/TON AG, 10.4% FE, 4.1% AS, 0.97% CU, 0.05% PB, 0.32% ZN

Materials

Ore: Galena
Ore: Arsenopyrite
Ore: Sphalerite
Ore: Malachite
Ore: Stibnite
Ore: Pyrite
Ore: Cassiterite
Gangue: Tourmaline
Gangue: Epidote

Comments

Comment (Deposit): MOST IMPORTANT MINE OF THE DISTRICT; ANOMALOUS AMOUNTS OF SN, MO, BI, CD, AND B REPORTED; DRILL CORE DATA AND MILL TESTS SUGGEST A PERIPHERAL AND UPWARD ENRICHMENT OF CU AND AU RELATIVE TO AS; IT APPEARS GEOLOGICALLY POSSIBLE, BASED ON THE SIZE OF AEROMAGNETIC AND GEOCHEMICAL ANOMALIES, THAT THE EXISTING BRECCIA PIPE IS A SURFACE EXPRESSION OF A DEPOSIT IN THE TENS OF MILLIONS OF TONS CLASS, USBM OFR 24-78, P. 4-85 ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Comment (Geology): GOLDEN ZONE STOCK IS INTRUDED INTO PERMIAN AND TRIASSIC RED BEDS CONTAINING MINOR UNITS OF BASALT AND CRYSTALLINE TUFF, WHICH LIE UNCONFORMABLY OVER A PRE PERMIAN BASEMENT OF ARGILLITE AND INTERLAYERED ARGILLITE-GRAYWACKE; TERRANE IS FOLDED, LOCALLY OVERTURNED AND COMPLEXLY FAULTED, AND CUT BY TERTIARY INTRUSIVES RANGING IN COMPOSITION FROM ULTRAMATIC TO GRANITIC. BIOTITE QUARTZ DIORITE PORPHYRY AGE IS LCRET-TERT K/AR 68.0 + 2.0, ADGGS GR 55, P.27.

Comment (Reserve-Resource): USGS CIRC 564, P.9

Comment (Production): AVERAGE GRADE OF 1480 OF THE 1730 TONS OF ORE PRODUCED WAS 0.99 OZ/TON AU, 4.5 OZ/TON AG, 1.4% CU., USGS CIRC 564. P.9

Comment (Location): MINERALIZED BRECCIA ZONE IN QUARTZ CLIORITE PORPHYRY STOCK, PLOTTED FROM USBM OFR 24-78, FIG. 4.2-A(1); INCLUDES GOLDEN ZONE EXTENSION LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Commodity): DEPOSIT CONTAINS SIGNIFICANT AMOUNT OF MINERALIZED ROCK CARRYING ABOVE 0.05 OZ/TON IN AU

Comment (Development): FAIRLY EXTENSIVE DRILLING DATA IS AVAILABLE IN USBM OFR 24-78, P.4-78 TO 4-85

Comment (Deposit): BRECCIA PIPE IN BIOTITE QUARTZ DIORITE PORPHRY; RELATIVELY HIGH GRADE ORE IN OUTER MARGINAL ZONE COMPOSED OF SLIGHTLY ROTATED ANGULAR BLOCKS OF ALTERED PORPHYRY CEMENTED IN A MATRIX OF ARSENOPYRITE, QUARTZ AND CUT BY MANY SMALL QUARTZ SULFIDE VEINS; LEAN INNER CORE OF PIPE IS SHATTERED QUARTZ PORPHYRY CARRYING SULFIDES DISSEMINATED AND ON FRACTURE SURFACES; HALO OF SLIGHTLY MINERALIZED (0.04 OZ/TON AU) PORPHYRY SURROUNDS THE PIPE

Comment (Workings): SURFACE TRENCHES, OPEN CUTS AND ADITS AT THE 100, 200 AND 500 FT LEVELS; 1900 FT OF WORKINGS (EXCLUDING 500 FT LEVEL); 500 FT LEVEL CROSSCUT WAS DRIVEN 1350 FT BUT WAS ABANDONED 900 FT SHORT OF THE DEPOSIT; 200 FT LEVEL PARTLY CAVED AND FILLED WITH WATER IN 1951; 500 FT LEVEL INACCESSIBLE

References

Reference (Deposit): USGS BULL 692, P.221, 226-227, 230

Reference (Deposit): USGS BULL 849-E, P. 309-310, 321-326

Reference (Deposit): USBM RI 5245, P. 1, 6-8

Reference (Deposit): USGS BULL 1246, P. 26

Reference (Deposit): USBM OFR 9-67, P. 6-25

Reference (Deposit): USGS CIRC 564, P. 1, 4-9

Reference (Deposit): USGS OFR 305, P. 1-16

Reference (Deposit): USGS PP 758-B, P. B12-B16, B20-B21, B23, B31-B35, B40

Reference (Deposit): ADGGS GR 55, P. 27

Reference (Deposit): USBM OFR 24-78, P. 4-76 TO 4-76 TO 4-86 AND FIG 4.2-A(1)

Reference (Production): USGS OFR 9-67, P. 13

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These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.