Moran Brothers Mine

The Moran Brothers Mine is a manganese mine located in Stanislaus county, California.

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

Name: Moran Brothers Mine  

State:  California

County:  Stanislaus

Elevation:

Commodity: Manganese

Lat, Long: 37.54111, -121.36750

Map: View on Google Maps

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.


Satelite image of the Moran Brothers Mine

Moran Brothers Mine MRDS details

Site Name

Primary: Moran Brothers Mine


Commodity

Primary: Manganese


Location

State: California
County: Stanislaus


Land Status

Not available


Holdings

Not available


Workings

Not available


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: M


Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Coast Ranges


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Not available


Alterations

Not available


Rocks

Name: Greenstone
Role: Host
Age Type: Host Rock Unit
Age Young: Late Cretaceous

Name: Greenstone
Role: Host
Age Type: Host Rock
Age Young: Late Cretaceous


Analytical Data

Analytical Data: AVERAGE GRADE 40 PERCENT MANGANESE


Materials

Not available


Comments

Comment (Geology): ORE HOSTED IN FRANCISCAN COMPLEX--L. TO L. ; GEOL.DESC: ORE OCCURS IN WHITE CHERT IN 2 ZONES SEPARATED BY A GREENSTONE BODY 25 FT. THICK AND 500 FT. LONG. ORE ABOVE GREENSTONE IS MASSIVE ORE 1.5 FT. THICK, AND BELOW THE GREENSTONE IT IS DISSEMINATED ORE IN CHERT ABOUT 6 FT. THICK. STRIKE IS N. W. AND DIP IS 60 N. E. MANGANESE OCCURS AS LENSES OF MANGANIFEROUS CARBONATE. PRIMARY ORE IS A MIXTURE OF MANGANIFEROUS CHERT AND MANGANESE CARBONATE. SOME PINK RHODOCHROSITE VEINS ARE PRESENT. THE GREENSTONE BODY MAY BE A SUBMARINE FLOW.

Comment (Location): LOCATED IN CENTER OF SW 1/4 SE 1/4 SECTION 36


References

Reference (Deposit): D.O.M. BULL. 152 1950 PP. 295 - 296

Reference (Deposit): D.O.M. BULL. 125 1943 P. 191


California Gold

Where to Find Gold in California

"Where to Find Gold in California" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in California. Read more: Where to Find Gold in California.