Washington · Clallam County
Occurrence
Bertha Prospect
Clallam County, Washington, United States
Manganese
Iron
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USGS source ↗
Description
Unknown
Commodities
Primary
Manganese
Secondary
Iron
Commodity type
M
Deposit
Deposit type
Replacement
Deposit size
N
Orebody form
LENSES
Ore control
Contact Between Basalt And Limestone
Materials
Ore minerals
Bementite
Gangue
Jasper
Geology
Host rock
Limestone · Metchosin
Associated rock
Basalt · Metchosin Voleanics
Structure
Small Left-Lateral Strike-Slip Fault, North Trending With 30 Ft Of Apparent Offset In The Second Ore Lens.
Tectonic setting
Active Margin (Leading Edge Of North American Plate)
Economic & production
Development status
Occurrence
Identification
Deposit ID
10047866
MRDS ID
M700200
Region
NA
Data score
B
Coordinates
48.01729, -123.75211
References
USGS BULL 931-R, P. 447-448WASH. DMG BULL 37, P. 254USGS RI 5530, P. 51-52