Mine detail: Jualin Mine

Previously called ''

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Location

Lat / long:

58.84114, -135.04706

Resource(M)

Primary:	Gold
Secondary:	Silver
Tertiary:	Zinc, Lead, Copper
Ore:	Chalcopyrite, Galena, Sphalerite
Gangue:	Ankerite, Calcite, Malachite, Pyrite, Quartz
Discovery year:	1895

Production

Operation type:	Unknown
Production size:	Small
Development status:	Producer
First production started:	1896
Last production ended:	1917

Geology

Host rock:	Berners Formation; Interstratified Slate And Graywacke With Volcanic Unit Of Augite Melaphyres And Pyroclastics
Host type:	Diorite
Associated rock:	Jualin Diorite; Massive Altered Diorite, Mainly Plagioclase, Hornblende And Biotite With Minor Epidote, Chlorite, Calcite, Sericite And Magnetite;Coast Range Batholith; Quartz Diorite Gneiss
Associated type:	Diorite
Structure:	Regional Attitude Of Planar Features; Including Bedding, Foliation In Gneiss, Major Contacts, Etc.; Is N 40 W, 60 To 90 Ne
Alteration processes:	Diorite Pervasively Chloritized, Local Sericite And Epidote

References

MRDS	A012016
DEP	10107522
Reference	{Deposit:: USGS BULL 284, P. 33-34}{Deposit:: USGS BULL 446, P. 44-47}{Deposit:: USGS BULL 662, P. 81-82}{Deposit:: USGS BULL 714, P. 107-108}{Deposit:: METZ, PAUL A. AND WIEBMER, JOHN D., 1977, MINERAL INDUSTRY RESEARCH LABORATORY SUMMARY FILE REPORT, EUREKA, KENSINGTON, COMET, JOHNSON AND JUALIN MINES, BERNE * BAY, JUNEAU DISTRICT, ALASKA: UNPUBLISHED REPORT SUBMITTED TO U.S.B.M. ALASKA FIELD OPERATIONS CENTER, JUNEAU, AK}{Deposit:: USGS BULL 755, P. 24-25}{Deposit:: USGS BULL 1246, P. 159-160}{Deposit:: USGS OFR 84-572, P. 159, NO. 24}{Deposit:: ADGGS SR 38, P. 13}{Deposit:: USGS OFR 85-717, NO. J102}{Other Database:: BAG-OFR-85-717-102}{Production:: METZ AND WIEBMER, 1977 UNPUB. REPORT; USGS BULL 755, P. 25; USGS OFR 84-572, P. 159, NO. 24}
Reporter	Leonard, Kenneth R. (Elliott, R. L.)