Commodities
PrimaryIron
TertiaryLead, Zinc, Gold, Silver
Commodity typeM
Deposit
Model62: Skarn Fe
Deposit sizeN
Orebody formTABULAR
Ore controlReactive Host Rocks
Materials
Ore mineralsGalena, Magnetite, Pyrite, Sphalerite
GangueActinolite, Diopside, Epidote, Garnet, Sphene, Tremolite
Geology
Host rockLimestone · Naches Formation, Guye Sedimentary Member;Naches Formation, Guye Sedimentary Member
Associated rockDiorite · Snoqualmie Batholith
Tectonic settingCascade Volcanic Arc
AlterationRecrystallization
Economic & production
Development statusOccurrence
Discovery year1881
Identification
Deposit ID10048621
MRDS IDMP00220
Alternate namesMt. Logan, Summit
RegionNA
Data scoreC
Coordinates47.44564, -121.4212
References
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. 118.HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 196.GUALTIERI, J.L., SIMMONS, G.C., THURBER, H.K., AND MILLER, M.S., 1973, MINERAL RESOURCES OF THE ALPINE LAKES STUDY AREA, CHELAN, KING, AND DITTITAS COUNTIES, WASHINGTON: U.S. GEOLOGICAL SURVEY OPNE-FILE REPORT 1918, P. 53.GUALTIERI, J.L., THURBER, H.K., MILLER, M.S., MCMAHAN, A.B., AND FEDERSPIEL, F.F., 1975, MINERAL RESOURCES OF ADDITIONS TO THE ALPINE LAKES STUDY AREA, CHELAN, KING, AND KITTITAS COUNTIES, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 75-3, P. 129.HUNTTING, 1956