Description
Montvale Lumber Company
Commodities
PrimaryCopper, Zinc
TertiarySilver, Gold, Lead
Commodity typeM
Deposit
Deposit typeStratabound Exhalative
Model91: Massive sulfide, Besshi (Japanese deposits)
Deposit sizeM
WorkingsUnderground
Orebody formLENTICULAR, POD-LIKE
Ore controlEspenshade (1963) Theorizes That Deposit Is In A Pipelike Zone Of Deformation Formed By Structures Cutting Across The Foliation.
Materials
Ore mineralsChalcopyrite, Galena, Magnetite, Pyrite, Pyrrhotite, Sphalerite
GangueBarite, Biotite, Chlorite, Muscovite, Plagioclase, Quartz, Talc
Geology
Host rockSchist,Sandstone · Anakeesta Formation , Chlorite-Mica Schist And Phyllite;Thunderhead Sandstone-Feldspathic Sst, Quartzite
Associated rockDiorite
StructureNortheast-Trending Strike Belts; Deposit Is Within A Northeast-Trending Sheared Zone Within The Phyllite., Plunge Of Ore Body Is Essentially Parallel To Plunge Of Tiny Foliation Crinkles Of The Sheared Phyllite Host Rock.
Tectonic settingFolded Blue Ridge Province
AlterationLimonite After Iron Sulfides; Supergene Copper Minerals.
Economic & production
Development statusPast Producer
Production years1926-1944
First production1926
Discovery year1913
Identification
Deposit ID10102275
MRDS IDK001693
RegionNA
Data scoreA
Coordinates35.47816, -83.7699
References
LANEY, F.B., 1907, COPPER DEPOSITS OF SWAIN COUNTY, IN PRATT, J.H., THE MINING INDUSTRY IN NORTH CAROLINA DURING 1906: NORTH CAROLINA GEOL. AND ECON. SURVEY, ECON. PAPER 14, P. 72-79.ROSS, C.F., 1935, ORIGIN OF THE COPPER DEPOSITS OF THE DUCKTOWN TYPE IN THE SOUTHERN APPALACHIAN REGION: U.S. GEOLOGICAL SURVEY PROF. PAPER 179, P. 92-94.ESPENSHADE, G.H., 1963, GEOLOGY OF SOME COPPER DEPOSITS IN NORTH CAROLINA, VIRGINIA, AND ALABAMA: U.S. GEOLOGICAL SURVEY BULL. 1142-I, P. I1 - I50.EMMONS, W.H., 1942, A REPORT ON THE FONTANA MINE: TENNESSEE VALLEY AUTHORITY INTERNAL REPORT, 57 P., MAPS.1907 COMPILE LANEY, F.B., N.C. ECON. PAPER 141935 COMPILE ROSS, C.F., USGS PP 1791963 GEOLMAP ESPENSHADE, G.H., USGS BULL. 1142-IESPENSHADE, G.H., 1963, USGS BULL. 1142