Pan American-Comet Mines

Lincoln County, Nevada, United States

SilverLeadZincTungstenManganeseGoldCopperBarium-Barite

⌖ Show on map USGS source ↗

Description

Charles H. Schodde (Schodde Mine)

Commodities

PrimarySilver, Lead, Zinc, Tungsten

SecondaryManganese, Gold, Copper

TertiaryBarium-Barite

Commodity typeB

Deposit

Deposit typevein, replacement bodies along bedding

Model72: Polymetallic replacement

Deposit sizeS

Orebody formIRREGULAR TO TABULAR; PINCH AND SWELL

Ore controlThe major ore control at the Pan American Mine was original lithology with selective replacement of coarser facies carbonate-filled tidal channels in more massive carbonate layers. Replacement may have been partially controlled by a bounding bedding plane fault. Other factors influencing mineralization are the N70E Schodde fissure and lamprophyre dikes.

Materials

Ore mineralsGalena, Sphalerite, Siderite, Wolframite, Plumbojarosite, Scheelite, Argentite, Gold, Cerussite, Chalcopyrite, Bornite, Chrysocolla, Malachite, Pyrolusite, Tetrahedrite, Chalcocite, Huebnerite, Ferberite

GanguePyrite, Limonite, Quartz, Specularite, Wolframite

Geology

Host rockLimestone,Quartzite,Shale · "Combined Metals Limestone Member of the Pioche Shale", "PROSPECT MOUNTAIN QUARTZITE", "Chisholm Shale", "Lyndon Limestone", "Highland Peak Fm"

StructureE-W Blue Ribbon Lineament, Highland Thrust Plate, homoclinal series, N strike, E dip, Schodde fissure, channels

Tectonic settingEarly Paleozoic continental shelf environment of deposition

AlterationSilicification, intense oxidation.

Economic & production

Development statusPast Producer

Production years1895-1898, 1900-1910, 1912-1932, 1934-1942, 1944-1952

First production1895

Last production1978

Discovery year1882

Identification

Deposit ID10310403

MRDS IDW016457

Alternate namesComet Coalition Mines, Forlorn Hope Mine, Log Cabin Mine, Comet Mine, Stella Mine, Pan American Mine, Non Pareil Mine, Schodde (Lyndon) Mine, Tungsten Comet Mine, Silver Comet Mine

RegionNA

Data scoreA

Coordinates37.89024, -114.61334

References

Tschanz C. M. and Pampeyan E. H. , 1970, Geology and Mineral Deposits of Lincoln Co; NBMG Bull 73Westgate L. G. and Knopf A., 1932, Geology and Ore Deposits of the Pioche District, Nev. USGS Prof Paper 171Lemmon D. M, unpublished dataLemmon D. M. and Tweto O. L., 1962, Tungsten in the U.S., USGS Map, MR-25NBMG District File 166, item 3, unpublished preliminary field examintion report.Bentz, J. and Smith, P., 1983, NBMG Field examination report, Aug 26, 1983.Trengove, R. R., 1949, USBM R.I. 4541, p. 1-6.Lincoln, F.C., 1923, Mining Districts and Mineral Resources of Nevada; Newsletter Pub. Co, Reno, NV.Weed, W.H., Editor, 1922, The Mines Handbook, Vol XV, p. 1330, 1362.NBMG District File 166, press clippings, 1924, 1925,1927.NBMG District File 175, press clippings, 1914, 1916, 1920.Long, K.R., DeYoung, J.H., Jr., and Ludington, S.D., 1998, Significant deposits of gold, silver, copper, lead, and zinc in the United States: U.S. Geological Survey Open-File Report 90-206A, 33 p.; 98-206B. one 3.5 inch diskette.Trengove, R.R., 1949, Comet Coalition lead-zinc deposit, Lincoln County, Nevada: U.S. Bureau of Mines Rept. Investigations 4541.Fitch, D.C., 1969, Geology and Ore Deposits of the Comet District, Lincoln County, Nevada: University of New Mexico, Albuquerque, master's thesis.James, L.P., and Knight, L.H., 1979, Stratabound lead-zinc-silver ores fo the Pioche District, Nevada - Unusual ?Mississippi Valley? Deposits; in RMAG-UGA 1979 Basin and Range Symposium proceedings.