Commodities
PrimaryGold
SecondarySilver, Lead, Zinc
TertiaryArsenic, Manganese
Commodity typeM
Deposit
Deposit typevein, shear zone
Model273: Low-sulfide Au-quartz vein
Deposit sizeS
Orebody formirregular lenses
Ore controlGold occurs as lenses along veins intimately associated with gouge and breccia. Most veins occur along NW- trending faults.
Materials
Ore mineralsGold, Galena
GangueQuartz, Limonite, Pyrite
Geology
Host rockLatite,Tuff,Volcanic Breccia (Agglomerate),Rhyolite,Metavolcanic Rock · "Excelsior Formation", "Gold Range Formation", "Dunlap Formation"
Associated rockquartz monzonite
StructureThe Luning-Fencemaker Thrust Belt lies directly east of the Sierra Nevada batholith and comprises a 500- kilometer long, 100 kilometer wide belt of intensely folded and thrusted Triassic and Jurassic marine sedimentary rocks. Individual thrust systems of note include the Luning, Fencemaker, Pamlico, Boyer, and Wild Horse thrusts (Speed and others, 1988). Thrusts of the LFTB generally carried deep-water, fine-grained turbiditic facies eastward and juxtaposed them against shallow-marine facies of the same age.\n, The Pamlico Anticline trends NW, derived on basis of relation between latite tuff and agglomerate unit with overlying rhyolitic tuff; this contact forms main localizing structure for Pamlico veins.
AlterationWall rocks adjacent to veins show chloritization, argillation, seritication
Economic & production
Development statusPast Producer
First production1886
Discovery year1885
Identification
Deposit ID10310558
RegionNA
Data scoreB
Coordinates38.45548, -118.47289
References
Hill, J. M., 1915 , Some mining districts in NE Calif. and NW Nevada, USGS, Bull. 594Vanderburg, 1937, Reconnaissance of Mining Districts n Mineral Co., Nev., USBM, Information Circular.Ross, D. L., 1961 , Geology and Mineral Deposits of Mineral Co., Nev., NBMG Bull. 58Archbold and Paul, 1970,Geology and mineral deposits of the Pamlico mining district, Mineral County, Nevada, NBMG Bull. 74.Tingley, Joseph V., 1990, MINERAL RESOURCE INVENTORY BUREAU OF LAND MANAGEMENT, CARSON CITY DISTRICT, NEVADA, NBMG OPEN-FILE REPORT 90-1, p170-173.Northern Miner, 12/26/94, 2/27/95, 4/10/95, 6/14/99BLM Files, Carson City DistrictMcArthur, Gerald F., October 9, 2002, SUMMARY GEOLOGICAL REPORT FOR THE GOLD BAR PROPERTIES, EUREKA COUNTY AND THE PAMLICO PROPERTY, MINERAL COUNTY NEVADA, U.S.A. SEC Disclosure form.American Bonanza Gold Mining Corp., 2/24/03The records of the historic Pamlico Mining Company are archived in the Special Collections of the University of Nevada, Reno library. They are contained in one Hollinger archival document case and cover the time period from 1888 through 1904. The material consists mainly of correspondence and financial statements and accounts. Most of the material is original and handwritten.