Mine detail: Troy

Previously called 'Troy ProjectSpar LakeOld Troy Mine'

Location:	Lincoln County, Montana, United States, North America
Lat / long:	48.22927, -115.90464
dep_id:	10124835
mrds_id:	W026545
mas_id:	300530001
Commodity type:	metallic
Major mineral:	Copper, Silver
Trace mineral:	Lead
Operation type:	Underground
Deposit type:	Sediment-hosted Cu, Revett
Development status:	Producer
ore:	Bornite, Chalcocite, Chalcopyrite, Silver, Covellite, Galena
gangue:	Quartz, Barite, Calcite
orebody_fm:	Three zones up to 60 ft thick, disseminated and stratabound.
work_type:	Underground
model:	200: Sediment-hosted Cu, Revett
Reporter:	Clarke, Donald, Causey, J. Douglas
hrock_unit:	Revett Formation
hrock_type:	Quartzite
arock_unit:	MAFIC DIKE, DRY CREEK STOCK, QUARTZ MONZONITE
arock_type:	Quartz Monzonite
Year first produced:	1981
disc_yr:	1963
prod_yrs:	1981-1993, 2004-present
References:	Deposit:: BALLA , J. C. ASARCO MANAGER NORTHWESTERN EXPLORATION DIVISION. PERSONAL COMMUNICATION, 1984. Deposit:: BEAR CREEK MINING COMPANY. PRIVATE COMPANY REPORTS. UNPUBL. Deposit:: BINGHAM, J. P., MANAGER OF ASARC* TROY MINE. PERSONAL COMMUNICATION, 1984. Deposit:: ASARC* NEW TROY MINE. PAPER PRESENTED AT THE 89TH ANNU.NORTHWEST MINING CONVENTION, SPOKANE, WA, DEC.1-3, 1983. Deposit:: TROY PROJECT OPERATING PLAN. SUBMITTED TO U.S. FOREST SERVICE, MAY 14, 1976. Deposit:: COST REFERENCE GUIDE FOR CONSTRUCTION EQUIPMENT. EQUIPMENT GUIDE BOOK COMPANY, PALO ALTO, CA, 1983. Deposit:: DAYTON, S. H. ASARC* TROY MINE. ENG. AND MIN. J., FEB 1983, V. 184, NO. 9, PP. 40-46. Deposit:: DILLARD, G. TROY OPERATION MAKES ASARCO NATIO* LEADING SILVER PRODUCER, PAY DIRT BIG SKY EDITION, DEC. 1982. PP 5-7. Deposit:: EARHART, R.L., M.D. KLEINKOPF, D.M. WILSON, D.J. GRIMES, AND N.T. ZILKA. MINERAL RESOURCES OF SCOTCHMAN PEAK WILDERNESS STUDY AREA. U.S. GEOL. SURV. OFR 76-706, 1976, 136 PP. Deposit:: GIBSON, R. GEOLOGY AND ORE DEPOSITS OF THE LIBBY QUADRANGLE, MONTANA. U.S. GEOL. SURV. BULL. 956, 1948, 131 PP. Deposit:: JAYNE, D. A NORTHWEST METALS CONFERENCE-SPONSORED TOUR OF THE TROY MINE. PERSONAL NOTES, APR. 28, 1982. Deposit:: MINING JOURNAL. ASARC* TROY MINE. OCT. 1981, PP. 2-4. Deposit:: MONTANA DEPARTMENT OF REVENUE. REVENUE RECORDS. 1982, 1983. Deposit:: PAY DIRT MAGAZINE. ASARCO WORKING TO CLEAN UP TAILING TAILINGS PROBLEM AT TROY OPERATION. BIG SKY EDITION, JUNE, 1983, P. 23A. Deposit:: SKILLINGMINING REVIEW. ASARC INCORPORATED NEW TROY SILVER-COPPER MINE. NOV. 20, 1982. Deposit:: STEARNS-ROGER, INC. ENVIRONMENTAL BASELINE INFORMATION OF THE MOUNT VERNON REGION--MONTANA. PREPARED FOR ASARCO, JAN. 31, 1975, UNPUBL. Deposit:: STRAAM ENGINEERS, INC. CAPITAL AND OPERATING COSTS ESTIMATING SYSTEM HANDBOOK. BUMINES CONTRACT NO. J0255026, 1979, 374 PP. Deposit:: WESTERN MINE ENGINEERING MING COST SERVICE. SPOKANE, WA 1983 Deposit:: WHITE, T. ASARC* TACOMA SMELTER. PERSONAL COMMUNICATION, 1984. Deposit:: MONT. BUREAU OF MINES AND GEOL. BULLETIN 129, 1991, Deposit:: ASARCO INC., 1994 10K, P.A18, A21. Deposit:: ASARCO INC. 1995 ANNUAL REPORT, P.11. Deposit:: 1995 ASARC* 1995 10K, P. A21. General:: Reipas, Ken, and Couture, Jean-Francois, 2005, Independent Technical Report on the Troy Cu-Ag Project, Montana, U.S.A. for Revett Silver Company: SRK Consulting (CANADA) INC., Toronto, Ontario, SRK project Number: 3UR006.02, 223 p. [accessed January 5, 2010, at http://www.revettminerals.com/revOpTroyReports.php]. Geology:: Hayes T S, Einaudi M T 1986 - Genesis of the Spar Lake strata-bound Copper-Silver deposit, Montana: Part I. Controls inherited from sedimentation and preore diagenesis: in Econ. Geol. v81 pp 1899-1931 Reserve-Resource:: Revett Minerals Inc., 2009, Troy Mine: http://www.revettminerals.com/documents/Revett_Fact_Sheet_3.26.09.pdf, accessed July 23, 2009. Reserve-Resource:: Boleneus, D.E., Appelgate, L.M., Stewart, J.H., and Zientek, M.L., 2005, Stratabound Copper-Silver Deposits of the Mesoproterozoic Revett Formation, Montana and Idaho: U.S. Geological Survey Scientific Investigations Report 2005?5231, 66 p.