The Bartlett is a manganese mine located in Alameda 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
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.
Bartlett MRDS details
Site Name
Primary: Bartlett
Commodity
Primary: Manganese
Location
State: California
County: Alameda
District: Corral Hollow
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: P And J. P.Connolly
Years: 1950 -
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: Sandstone
Role: Host
Age Type: Host Rock Unit
Age Young: Late Cretaceous
Name: Sandstone
Role: Host
Age Type: Host Rock
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Not available
Comments
Comment (Geology): ORE HOSTED IN FRANCISCAN COMPLEX - L. TO L. ; GEOL.DESC: ORE BODY 20 IN WIDE AND AT A 35 FT. DEPTH IS 3.5 FT. WIDE. IN QUARTZOSE GANGUE. BED STRIKES EAST AND DIPS STEEPLY SOUTH; FOOTWALL IS CHERT AND HANGING WALL IS SANDSTONE. ORE MOST ABUNDANT IN POCKETS WITHIN SANDSTONE. MANGANESE CONTENT RANGE FROM 41 PERCENT NEAR SURFACE TO 53 PERCENT AT DEPTH. ORE IS BLACK OXIDES, AT FIRST HARD AND FLINTY, BUT AT DEPTH SOFT, BLUEISH ORE.
Comment (Production): PRODUCTION PRIOR TO 1892 SAID TO BE 300 TONS. MORE THAN 1400 TONS SHIPPED FROM 1891-1900 - SMALL SHIPMENT MADE IN 1916
Comment (Workings): SHAFT
Comment (Deposit): ADD. REF. NO.4. BULL. 140, PL 1 (GEOLOGY); NO.5. USBM RI 5579, P.21
References
Reference (Deposit): CALIF. JOUR. MINES & GEOL. V. 46, NO.2, APRIL 1950, P.343, PL. 58
Reference (Deposit): DOM BULL. 152, P.15
Reference (Deposit): BULL. 125, P.97
California Gold
"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.
