The Murphy-Bramlette Prospect is a mine located in Trinity 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.
Murphy-Bramlette Prospect MRDS details
Site Name
Primary: Murphy-Bramlette Prospect
Commodity
Tertiary: Manganese
Location
State: California
County: Trinity
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
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: Klamath Mountains
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Chert
Role: Host
Age Type: Host Rock
Age Young: Late Jurassic
Analytical Data
Analytical Data: AVERAGE PROBABLY LESS THAN 15 PERCENT MANGANESE
Materials
Not available
Comments
Comment (Geology): GEOL.DESC: MANGANESE STAINED CHERTS EXPOSED FOR A FEW HUNDRED FT., TRENDING N. W. ABOVE ORE BED IS SLATE 30 FT. THICK, WHICH BECOMES SOFTER, CLOSER TO ORE BED. ABOVE SLATE IS A DENSE PORPHYRITIC GREENSTONE. BELOW ORE IS A 30 FT. BED OF EVENLY BANDED, CLIFF FORMING CHERT GENERALLY IN LAYER 1 TO 1.5 INCHES THICK. STRIKE IS N. 45 W. AND DIP IS 45 N. E. MANGANESE OXIDE OCCURS AS IRREGULAR OUTER RIMS AND FRACTURE FILLINGS IN DENSE AND BRECCIATED CHERT. IRREGULAR BUNCHES OF WHITE POROUS SILICA ARE COMMON. FRESH CHERT IS DARK GREEN OR BROWN, WITH PYRITE IN PLACES. ORE BED IS LESS THAN 6 FT. THICK
References
Reference (Deposit): D.O.M. BULL. 152 1950 P. 331
Reference (Deposit): D.O.M. BULL. 125 1943 P. 201
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.
