Mine detail: Silver Valley Mine

Previously called 'Spring Valley Mine'

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Location

Lat / long:

35.72509, -80.11478

Resource(M)

Primary:	Lead, Zinc, Gold, Silver
Tertiary:	Copper
Ore:	Chalcocite, Chalcopyrite, Covellite, Freibergite, Galena, Gold, Malachite, Pyrite, Silver, Sphalerite
Gangue:	Calcite, Sericite, Siderite, Tremolite
Orebody form:	TABULAR
Discovery year:	1880

Production

Operation type:	Unknown
Deposit type:	Stratabound Exhalative
Production size:	Small
Development status:	Past Producer
Production years:	1881-1882, 1893
First production started:	1881
Last production ended:	1893

Geology

Host rock:	Mudstone In The Flat Swamp Member Of The Cid Formation
Host type:	Argillite
Associated rock:	Flat Swamp Member Of The Cid Formation
Associated type:	Basalt
Structure:	Ne-Plunging Open Folds, Bedding N 35 E 45 Deg Nw.
Alteration processes:	Chlorite And Tremolite (Mg-Alteration), Sericite, Carbonate (Siderite And Calcite)

References

MRDS	K005080
DEP	10026449
Reference	{Deposit:: CARPENTER, P. A., III, 1976, METALLIC MINERAL DEPOSITS OF THE CAROLINA SLATE BELT, NORTH CAROLINA: NORTH CAROLINA MINERAL RESOURCES SEC. BULL. 84, 166 P.}{Deposit:: PARDEE, J. T., AND PARK, C. F., JR., 1948, GOLD DEPOSITS OF THE SOUTHERN PIEDMONT: U. S. GEOLOGICAL SURVEY PROF. PAPER 213, 156 P.; POGUE,J.E, 1910, THE CID MINING DISTRICT OF DAVIDSON COUNTY, NORTH CAROLINA: NORTH CAROLINA GEOLOGICAL AND ECONOMIC SURVEY BULLETIN 22.}{Production:: POGUE, 1910}
Reporter	Mcdaniel, Ronald D., Klein, T.L.