Mexican I

  

Mine Info

State: California

County: Mariposa

Elevation: 2,001 feet (610 meters)

Primary Mineral: Gold

Lat, Long: 37.54833, -120.10111



Mexican I MRDS details

Site Name

Commodity

Location

Primary: "Mexican I"
Primary: Gold
State: California
County: Mariposa
District: Mt. Bullion
 

Land Status

Holdings

Workings

Land ownership:
Administrative Organization:
Type: Underground


Ownership

Production

Deposit

Owner Name: Ellen T. Simpson, Et. Al.
Company ID:
Percent:
Home Office:
Info Year:
Years: -

Record Type: Site
Operation Category: Past Producer
Deposit Type:
Plant Type:
Plant Subtype:
Operation Type: Unknown
Mining Method:
Milling Method:
Year First Production:
Year Last Production:
Discovery Year: 1855
Discovery Method:
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

Mineral Deposit Model

Orebody

General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada
Physiographic Detail:
Name:
Form:


Structure

Alterations

Rocks

Name: Slate
Role: Host
Description:
Age Type: Host Rock
Age in Years:
Dating Method:
Material Analyzed:
Age Young: Late Jurassic
Age Old:


Analytical Data

Materials

Ore: Gold
Gangue: Quartz


Comments

Comment Type:
Deposit
Comment Discovery Year: 1850'S
Comment Type:
Geology
Comment GEOL.DESC: HANGING WALL IS MARIPOSA SLATE FOOTWALL IS PYROXENE ANDESITE GREENSTONE OF PROBABLE UPPER JURASSIC AGE.
Comment Type:
Deposit
Comment INCLUDED IN LAS MARIPOSAS GRANT. THE UPPER PART OF THE VEIN APPARENTLY CONTAINED POCKETS OF HIGHGRADE ORE FORMED BY OXIDATION AND REMOVAL OF VALUELESS SULFIDE MINERALS. THERE IS LITTLE INDICATION THAT RIGHT ORE WAS FOUND AT DEPTH BUT VEIN WAS NEVER THOROUGHLY EXPLORED BECAUSE OF THE WATER.
Comment Type:
Location
Comment UTM EST. BOWEN LIST CLAIM IN SEC. 23 PROBABLY MEANS SEC. 33 .
Comment Type:
Production
Comment $50,000 REMOVED PRIOR TO 1859 .
Comment Type:
Deposit
Comment VEIN SYSTEM IS DISCONTINUOUS AND IS MADE UP OF A SERIES OF SUBPARALLEL MEMBERS & INTERSECTING CUTTER VEINS.
Comment Type:
Workings
Comment ORIGINALLY WORKED FROM A SHALLOW PIT; A 150-FT. SHAFT WAS DUG IN 1908, LITTLE OR NO DEVELOPMENT SINCE.


References

Reference Category:
Production
Pages:
Reference: BOWEN & GRAY 1957
URL:
Reference Category:
Deposit
Pages:
Reference: BOWEN, O. E., JR., GRAY, C. H., JR., 1957 , MINES AND MINERAL DEPOSITS OF MARIPOSA COUNTY, CALIFORNIA: CALIF. JOUR. MINES AND GEOLOGY, V. 53 , NOS. 1 AND 2 , P. 132 , 284
URL:

Did You Know.......

A mine is a hole in the ground, owned by a liar.
-Mark Twain

About The MRDS Mines Database

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.

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