Mine detail: Helen Mine

<< Back to the map

<< Back to browsing

Location: Clallam County, Washington, United States, North America
Lat / long: 48.08312, -123.99879
dep_id: 10098698
mrds_id: M700215
Commodity type: metallic
Major mineral: Manganese
Operation type: Unknown
Production size: Small ammount of material produced
Development status: Past Producer
ore: Bementite
orebody_fm: LENSES
model: 100: Volcanogenic Mn, Olympic Peninsula
ore_ctrl: Contact Between Basalt And Limestone
Reporter: Lawson, William A. (Evarts, Russell C.), Peterson, Jocelyn A.
hrock_unit: Crescent Formation;Crescent Formation
hrock_type: Limestone
Structure: North Wall Of Limestone Is In Fault Contact With Basalt
tectonic: Active Margin (Leading Edge Of North American Plate)
References:
  • Deposit:: HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 255.
  • Deposit:: MAGILL, E.A., 1960, MANGANESE DEPOSITS OF THE OPYMPIC PENINSULA, WASH.: U.S. BUREAU OF MINES REPORT OF INVESTIGATIONS 5530, P. 35.
  • Deposit:: PURDY, C.P., JR., 1954, DIRECTORY OF WASHINGTON MINING OPERATIONS, 1954: WASHINGTON DIVISION OF MINES AND GEOLOGY INFORMATION CIRCULAR 23, P. 33.
© 2010-2018 Lee C. Baker unless noted. All rights reserved.