The Warner Bay Porphyry Prospect is a molybdenum 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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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.
Warner Bay Porphyry Prospect MRDS details
Site Name
Primary: Warner Bay Porphyry Prospect
Commodity
Primary: Molybdenum
Secondary: Copper
Secondary: Zinc
Location
State: Alaska
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
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: L
Description: Closely Spaced Joint Set Trending N 45 W
Alterations
Alteration Type: L
Alteration Text: Incomplete Alteration Of Amphibole To Biotite, Slight Chloritization Of Biotite And Rare Sericitic Alteration In Otherwise Unaltered Rocks
Rocks
Name: Tonalite
Role: Host
Age Type: Host Rock
Age in Years: 9.860000+-0.360000
Dating Method: K-Ar
Age Young: Miocene
Name: Pegmatite
Role: Associated
Age Type: Associated Rock
Age in Years: 6.000000+-
Age Young: Miocene
Analytical Data
Analytical Data: SURFACE SAMPLES: 0.0-0.7% MO, TRACE CU
Materials
Ore: Molybdenite
Ore: Sphalerite
Ore: Chalcopyrite
Gangue: Quartz
Gangue: Hematite
Gangue: Pyrite
Comments
Comment (Development): EXPLORED BY 4 DRILL HOLES TOTALING 760 M IN THE MID-1960'S
Comment (Deposit): CHALCOPYRITE AND MOLYBDENITE OCCUR ON JOINT SURFACES; VEINLETS SPACED 5-10 CM APART; HEMATITE-RICH VEINS WITH MINOR PYRITE, CHALCOPYRITE AND SPHALERITE ARE ALSO PRESENT
Comment (Geology): DEVIL'S BATHOLITH IS A MULTIPHASE, MEDIUM GRAINED GRANODIORITE TO TONALITE PLUTON INTRUDED INTO A COMPLEX TERRANE CONSISTING OF OLDER MIOCENE ANDESITIC AND DACITIC HYPABYSSAL ROCKS CUTTING A SEDIMENTARY SEQUENCE OF CHIGNIK, HOODOO AND TOLSTOI FORMATION UNITS; BATHOLITH IS CUT BY LATE STAGE PEGMATITES; LAST INTRUSIVE PHASE EMPLACED CIRCA 6. M.Y. MIO DEVIL'S BATHOLITH K/AR AGES: 9.86 +/- .36 M.Y. (HBLINGDIOR), 10.08 +/- .14 M.Y. (HBLINTONNALITE.
Comment (Location): USGS MF-1053K, LOC. 11 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).
Comment (Deposit): TONNAGE UNKNOWN; POSSIBLY LARGE BUT VERY LOW GRADE; SEE ALSO: WARNER BAY BRECCIA PIPE ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
References
Reference (Deposit): USGS CIRC 772-B, P. B63
Reference (Deposit): USGS OFR 77-168F, P. 7, LOC. 3
Reference (Other Database): BAG-MF-1053K-11
Reference (Deposit): USGS OFR 80-543, P. II, 37, 39-41
Reference (Deposit): USGS OFR 83-783, P. 12-17
Reference (Deposit): USGS MF-1053K, LOC. 11
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