Commodities
PrimaryManganese
Commodity typeM
Deposit
Model100: Volcanogenic Mn, Olympic Peninsula
Deposit sizeS
WorkingsSurface/Underground
Orebody formLENS
Materials
Ore mineralsBementite, Hausmannite
Geology
Host rockLimestone · Crescent Formation;Crescent Formation
StructureSeries Of Small Faults Offset The Ore Body
Tectonic settingActive Margin (Leading Edge Of North American Plate); Accreted Terrane
Economic & production
Development statusPast Producer
First production1952
Last production1953
Identification
Deposit ID10047878
MRDS IDM700217
Alternate namesPeacock, Johnnie M.
RegionNA
Data scoreB
Coordinates48.0834, -124.02073
References
HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 256.MAGILL, E.A., 1960, MANGANESE DEPOSITS OF THE OLYMPIC PENNINSULA, WASH.: U.S. BUREAU OF MINES REPORT OF INVESTIGATIONS 5530, P. 31-32, 76.DERKEY, R.E., JOSEPH, N.L., AND LASMANIS, RAYMOND, 1990, METAL MINES OF WASHINGTON - PRELIMINARY REPORT: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, P. 26.GREEN, S.H., 1945, MANGNAESE DEPOSITS OF THE OLYMPIC PENINSULA, WASHINGTON: WASHINGTON DIVISION OF MINES AND MINING REPORT OF INVESTIGATIONS 7, 45 P.MAGILL, 1960