The Beaver Creek Prospect is a silver and lead 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
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Beaver Creek Prospect MRDS details
Site Name
Primary: Beaver Creek Prospect
Commodity
Primary: Silver
Primary: Lead
Tertiary: Gold
Tertiary: Copper
Tertiary: Zinc
Location
State: Alaska
District: Ruby
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Year: 1920
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Form: LENTICULAR
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Argentiferous Galena Much Altered To Cerussite; Fe Altered To Limonite.
Rocks
Not available
Analytical Data
Analytical Data: ASSAYS OR ANALYSES OF 1.47 TO 82 OZ. AG PER TON, 8.7%-15.3% PB, .08%-.89% ZN, .02% CU, AND TRACES OF GOLD REPORTED. EU LOW (MAXIMUM OF .003%). 41 CHANNEL SAMPLES WERE CUT FROM THE GOSSAN.
Materials
Ore: Malachite
Gangue: Limonite
Gangue: Goethite
Gangue: Rhodochrosite
Gangue: Pyrite
Gangue: Anglesite
Comments
Comment (Deposit): THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.
Comment (Geology): BOTH PREMINERALIZATION AND POSTMINERALIZATION FAULTS APPROXIMATELY PARALLEL TO BEDDING AND SCHISTOSITY OF COUNTRY ROCK (INTENSELY JOINTED AND FRACTURED SCHIST AND PHYLLITE CONTAINING SILICEOUS AND CALCAREOUS BANDS); DEPOSITS, SOME OF FAULTS, BEDDING AND SCHISTOSITY ALL STRIKE ABOUT N 35 E AND DIP STEEPLY NW. SOME OF LATER FAULTS ARE TRANSVERSE AND DISRUPT CONTINUITY OF EAST GOSSAN ZONE. EAST ZONE IS 500 FT. LONG AND .5 TO 6 FEET WIDE. WEST ZONE IS 300 FT. LONG AND 3-10 FT. WIDE.
Comment (Deposit): THE CHANCE OF DEVELOPING ANY SIGNIFICANT TONAGE OF ORE SEEMS SLIGHT. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Comment (Location): USGS MF-405, LOC. 1. DEPOSITS AT THE BASE OF THE NORTH VALLEY WALL OF BEAVER CR. ABOUT 1.5 MI. EAST OF THE RUBY-POORMAN ROAD AND MIDWAY BETWEEN THIRTEEN MILE CR. AND LITTLE JOE CR. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).
Comment (Development): DISCOVERED AND EXPLORED IN 1920; NO PRODUCTION. EXPLORED IN 1960 BY THE U.S.B.M.
Comment (Deposit): LENTICULAR VEINS OF ARGENTIFEROUS GALENA WITH VARIOUS AMOUNTS OF CERUSSITE, ANGLESITE, RHODOCHROSITE, MANGANESE OXIDES, GOLD, PYRITE, RUBY SILVER, MALACHITE, AND OZURITE; NO ZINC MINERAL IDENTIFIED, BUT ZN SHOWED UP IN ANALYSES. VEINS ATTAIN A MAXIMUM THICKNESS OF SEVERAL FEET AND FOLLOW THE CLEAVAGE OF MICA SCHIST COUNTRY ROCKS. IRON-RICH GOSSAN. GOSSAN DEPOSITS ARE IRREGULAR TABULAR BODIES IN 2 ZONES 800 FT. APART, A FEW HUNDRED FEET LONG, MAXIMUM WIDTHS OF 6 TO 10 FT; LIMITED TO SHALLOW DEPTHS. GOSSANS ARE COMPOSED MAINLY OF LIMONITE AND GOETHITE WITH INCLUSIONS OF GALENA, QUARTZ, ANGLESITE, CERUSITE, AND SCHIST COUNTRY ROCK.
Comment (Workings): WORKINGS INCLUDED A 40 FT. SHAFT, 2 SHALLOW SHAFTS, AND AN ADIT AND DRIFT. ABOUT 3,100 LINEAR FT. OF TRENCHES WERE EXCAVATED FROM 11 TRENCHING SITES IN 1960.
References
Reference (Deposit): USGS MF-405 (C-5), LOC. 1
Reference (Deposit): USGS BULL. 783, P. 145-150.
Reference (Deposit): USBM OF 39, P. 1-28.
Reference (Deposit): USGS OF 77-168D, P. 84, LOC. 6.
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