Gilpatrick

The Gilpatrick is a gold 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: Gilpatrick

Commodity

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

Location

State: Alaska
District: Hope District

Land Status

Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Not available

Workings

Type: Surface/Underground

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Type: L
Description: Several Faults Which Cut Ore Body Strike N60e And Dip 75-90nw. Cleavage In Slate Strikes N15e And Dips 65-85e

Alterations

Alteration Type: L
Alteration Text: Dike Has Extensive Chlorite-Serkite Alteration

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Sphalerite
Ore: Gold
Ore: Silver
Ore: Chalcopyrite
Ore: Galena
Gangue: Calcite
Gangue: Quartz
Gangue: Pyrite

Comments

Comment (Deposit): MINERALIZED FELSIC DIKE CONTAINS QUARTZ FILLED FRACTURES CARRIES NATIVE METALS AND SULFIDES. PARALLEL TO DIKE ARE QUARTZ VEINS 2 TO 12 INCHES IN WIDTH AT A DISTANCE OF 2 TO 10 FEET FROM THE DIKE. THE VEINS ARE MINERALIZED IN A MANNER SIMILAR TO THE DIKE. THE ORE BODIES ARE OFFSET BY SEVERAL DEXTRAL FAULTS. THE PRESENCE OF GOUGE ON ONE WALL OF THE DIKE INDICATES POST-MINERALIZATION MOVEMENT ALONG ANOTHER FAULT PARALLEL TO THE DIKE. DIKE CONTINUES FOR SEVERAL MILES (SEE FRESNO CREEK), BUT DEVELOPMENT ON THIS SITE IS RESTRICTED TO A FEW THOUSAND FEET OF ITS LENGHT.

Comment (Location): DEPOSIT NUMBER IS THE MAP LOCATION NUMBER FROM MF-880A. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Development): LATER REFERENCES (OF 80-621, ETC.) INDICATE PRODUCTION, BUT ORIGINAL PUBLICATIONS SUGGEST THAT THIS WAS NOT THE CASE

Comment (Workings): 3 LEVELS OF TUNNELS ARE PRESENT. THE LOWER TUNNEL IS 265 FEET LONG; THE MIDDLE TUNNEL HAS CAVED IN; THE UPPER TUNNEL IS 50 FEET LONG. ALSO OPEN TRENCHES.

References

Reference (Deposit): USGS MISCELLANEOUS FIELD STUDIES 880-A, LOCATION 54

Reference (Deposit): USGS OPEN FILE 80-621, P.86

Reference (Deposit): USGS BULLETIN 587, P.164-167

Reference (Deposit): USGS BULLETIN 849-I, P.512-515

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