Commodities
PrimaryLead
TertiaryNickel, Copper, Zinc, Cobalt
Commodity typeM
Deposit
Deposit typeREPLACEMENT, DISSEMINATED SULFIDES.
Deposit sizeM
Ore controlTHE ORE DEPOSITS OCCUR AS DISSEMINATED REPLACEMENTS OF GALENA, SPALERITE, SIEGENITE, CHALCOPYRITE, AND MARCASITE IN THE LOWER PART OF THE BONNETERRE DOLOMITE AND LOCALLY IN THE TOP OF THE LAMOTTE SANDSTONE. THE DISTRIBUTION OF THE ORE MINERALS BETWEEN ORE BODIES, AND EVEN WITHIN INDIVIDUAL BODIES, IS ERRATIC. A CRUDE VERTICAL ZONING IS APPARENT IN SOME ORE BODIES, SIGNIFICANT AMOUNTS OF COPPER, NICKEL, AND COBALT MINERALS BEING CONCENTRATED IN THE LOWER PARTS, AND IN SOME BODIES THE COMBINED METAL CONTENT AND QUANTITY OF EACH METAL ALSO VARIES MARKEDLY WITHIN SHORT LATERAL DISTANCES. QUITE A FEW DEPOSITS
Geology
StructureTHE REGIONAL DIP OF THE CAMBRIAN ROCKS IS GENTLY EASTWARD, BUT LOCALLY THESE ROCKS DIP PERIPHERALLY AWAY FROM THE PRECAMBRIAN PEAKS OF THE BASEMENT, PROBABLY BECAUSE OF THE DIFFERENTIAL COMPACTION OF THE SEDIMENTARY ROCKS.
Economic & production
Development statusPast Producer
Identification
Deposit ID60001557
MRDS IDW000706
Alternate namesFredericktown Lead-Nickel-Copper-Cobalt Deposits (This Is A Sub-District)
RegionNA
Data scoreC
Coordinates37.54897, -90.2732
References
BASTIN, E.S.(EDITOR), 1939, G.S.A. SPECIAL PAPER NO. 24,P.18-24, 64,112TARR, W.A., 1936, ECON. GEOL. VOL. 31, NOS. 7AND8, P. 712-754; 832-866.OHLE, E.L., AND BROWN, J.S., 1954 G.S.A. BULL. VOL. 65, NO.3, P. 202-221.CORNWALL, H.R., 1966, USGS BULL. 1223, P. 44-45.U.S. BUREAU OF MINES, 1952, MATERIALS SURVEY ON NICKEL, 1950: WASHINGTON, U.S.GOVT. PRINTING OFFICE, (301 LOOSELEAF P.) P. V-16.