Structural controls and evolution of gold-, Silver-, and REE-bearing copper-cobalt ore deposits, blackbird district, east-central idaho: Epigenetic origins

Economic Geology

Volumn 106, Issue 4, 2011, Pages 585-618

  Lund, K ^a   Tysdal, R G ^a   Evans, K V ^a   Kunk, M J ^b   Pillers, R M ^a  

^a DENVER FEDERAL CENTER   (United States)

^b U S GEOLOGICAL SURVEY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ALLANITE; ALTERATION ZONES; AMPHIBOLITE FACIES; CHEMICAL EXCHANGE; COMPRESSIONAL DEFORMATION; CRITICAL ELEMENTS; CRUSTAL THICKENINGS; DUPLEX SYSTEMS; GREENSCHIST; HOST ROCKS; LATE CRETACEOUS; MESOPROTEROZOIC AGE; METAMORPHIC CONDITIONS; METASEDIMENTARY ROCKS; MINERAL ASSOCIATIONS; MINERAL GROWTH; MINERALIZED ZONE; NEW STUDY; QUARTZ VEIN; RAMP STRUCTURES; STRUCTURAL CONTROL; TECTONIC EVOLUTION; THRUST FAULTING; THRUST FAULTS; XENOTIME;

CHLORINE; COBALT; COPPER COMPOUNDS; COPPER DEPOSITS; DEFORMATION; DEPOSITS; GOLD DEPOSITS; ION EXCHANGE; IRON ORES; LEACHING; METAMORPHIC ROCKS; MICA; MINERAL RESOURCES; ORE DEPOSIT GEOLOGY; PHOSPHATE MINERALS; QUARTZ; ROCKS; SILVER; SILVER DEPOSITS; SODIUM; STRATIGRAPHY; STRUCTURAL DYNAMICS; TECTONICS;

COBALT DEPOSITS;

ALBITE; ALLANITE; AMPHIBOLITE; BIOTITE; BRINE; COBALT; COPPER; COUNTRY ROCK; CRUSTAL THICKENING; EVAPORITE; GOLD; GREENSCHIST FACIES; METASEDIMENTARY ROCK; MONAZITE; ORE DEPOSIT; RARE EARTH ELEMENT; RETROGRADE METAMORPHISM; SCAVENGING (CHEMISTRY); SIDERITE; SILVER; VEIN (GEOLOGY);

BLACKBIRD; IDAHO; UNITED STATES;

EQUIDAE; TURDUS MERULA;

EID: 79958151226     PISSN: 03610128     EISSN: None     Source Type: Journal    
DOI: 10.2113/econgeo.106.4.585     Document Type: Article

References (160)

1. Ague, J.J., 1994, Mass transfer during Barrovian metamorphism of pelites, south-central Connecticut. II: channelized fluid flow and the growth of staurolite and kyanite: American Journal of Science, v. 294, p. 1061-1134.
2. Ahmed, H.A., Arai, S., and Ikenne, M., 2009, Mineralogy and paragenesis of the Co-Ni arsenide ores of Bou Azzer, Anti-Atlas, Morocco: ECONOMIC GEOLOGY, v. 104, p. 249-266.
3. Aleinikoff, J.N., Slack, J.F., Hayes, T.S., Fanning, C.M., Mazdab, F.K., and Wooden, J.L., 2010, U-Pb and trace element evidence from xenotime for the origin of Co-Cu-Au and Cu-Ag deposits, ID-MT: Goldschmidt 2010 Conference, Geochimica et Cosmochimica Acta, v. 74, no. 12, Supplement 1, p. A11.
4. 39Ar dating standeard, in Zartman, R.E., ed., Fourth International Conference on Geochronology, Cosmochronology, and Isotope Geology: U.S. Geological Survey Open-File Report 78-701, p. 6-8.
5. Anderson, A.L., 1943a, A preliminary report on the cobalt deposits in the Blackbird district, Lemhi County, Idaho: Idaho Bureau of Mines and Geology Pamphlet 61, 34 p.
6. 1943b, Copper mineralization near Salmon, Lemhi County, Idaho, Bureau of Mines and Geology Pamphlet 60, p. 15.
7. 1947, Cobalt mineralization in the Blackbird district, Lemhi County, Idaho: ECONOMIC GEOLOGY, v. 42, p. 22-46.
8. 1956, Geology and mineral resources of the Salmon Quadrangle, Lemhi County, Idaho: Idaho Bureau of Mines and Geology Pamphlet 106, 102 p.
9. 1958, Thorite and rare earth deposits in the Lemhi Pass area, Lemhi County, Idaho: Mining and Engineering Journal, v. 10, p. 1241-1243.
10. Ater, P., 1981, A field investigation of tourmalinized breccias, Blackbird district, Lemhi County, Idaho: unpublished report, Noranda Exploration, Inc., 41 p.
11. Barnes, B.E., 1987, Principles involved in mobilization and remobilization: Ore Geology Reviews, v. 3, p. 37-45.
12. Bell, T.H., 1991, The role of thrusting in the structural development of the Mount Isa mine and its relevance to exploration in the surrounding region: ECONOMIC GEOLOGY, v. 86, p. 1602-1625.
13. Bending, J.S., and Scales, W.G., 2001, New production in the Idaho cobalt belt; a unique metallogenic province: Transactions, Institute of Mining and Metallurgy, Section B: Applications to Earth Science, v. 110, p. B81-B87. (Pubitemid 34082231)
14. Bennett, E.H., 1977, Reconnaissance geology and geochemistry of the Blackbird Mountain-Panther Creek region, Lemhi County, Idaho: Idaho Bureau of Mines and Geology Pamphlet 167, 108 p.
15. Berg, R.B., 1977, Reconnaissance geology of southernmost Ravalli County, Montana: Montana Bureau of Mines Memoir 44, 39 p.
16. Bookstrom, A.A., Johnson, C.A., Landis, G.P., and Frost, T.P., 2007, Blackbird Fe-Cu-Co-Au-REE deposits, in O'Neill, J.M., ed., Metallogeny of Mesoproterozoic sedimentary rocks in Idaho and Montana-studies by the Mineral Resources Program, U.S. Geological Survey 2004-2007, Open- File Report 2007-1280, p. 11-20.
17. Brems, D., Muchez, P., Sikazwe, O., and Mukumba, W., 2009, Metallogenesis of the Nkana copper-cobalt South orebody, Zambia: Journal of African Earth Sciences, v. 55, p. 185-196.
18. Canavan, F., 1973, Notes on the terms "stratiform," "stratabound," and "stratigraphic control" as applied to mineral deposits: Journal of the Geological Society of Australia, v. 19, p. 543-546.
19. Carter, N.L., Kronenberg, A.K., Ross, J.V., and Wiltschko, D.V., 1990, Control of fluids on deformation of rocks: Geological Society, London, Special Publications, v. 54, p. 1-13.
20. Cartwright, I., and Oliver, N.H.S., 2000, Metamorphic fluids and their relation to the formation of metamorphosed and metamorphogenic ore deposits: Reviews in Economic Geology, v. 11, p. 81-96.
21. Cater, F.W., Pinckney, D.M., Hamilton, W.B., Parker, R.L., Weldin, R.D., Close, T.J., and Zilka, N.T., 1973, Mineral resources of the Idaho Primitive Area and vicinity, Idaho: U.S. Geological Survey Bulletin 1304, 431 p.
22. Cater, F.W., Pinckney, D.M., and Stotelmeyer, R.B., 1975, Mineral resources of the Clear Creek-Upper Big Deer Creek study area, contiguous to the Idaho Primitive Area, Lemhi County, Idaho: U.S. Geological Survey Bulletin 1391-C, 41 p.
23. 39 Ar and fission-track methods: Terra Cognita, v. 6, p. 139-140.
24. Chevillon, V., and Herberger, D.J., 1989, Syngenetic gold mineralization in the Proterozoic Yellowjacket Formation, Ulysses gold mine, Lemhi County, Idaho: Geological Society of America Abstracts with Programs, v. 21, no. 5, p. 65.
25. Colvine, A.C., 1989, An empirical model for the formation of Archean gold deposits: Products of final cratonization of the Superior Province, Canada: ECONOMIC GEOLOGY MONOGRAPH 6, p. 37-53.
26. Connor, J.J., 1990, Geochemical stratigraphy of the Yellowjacket Formation (Middle Proterozoic) in the area of the Idaho cobalt belt, Lemhi County Idaho, with analytical contributions from A.J. Bartel, E. Brandt, P.H. Briggs, S. Danahey, D. Fey, D.B. Hatfield, M. Malcolm, V. Merritt, G. Riddle, S. Roof, K. Stewart, J. Storey, J.E. Taggert, and R.B. Vaughn. Part A. Discussion, Part B. Geochemical data, U.S. Geological Survey Open-File Report OF 90-234, 30 p.
27. 1991, Some geochemical features of the Blackbird and Jackass zones of the Yellowjacket Formation (Middle Proterozoic) in east-central Idaho, with analytical contributions from Bartel, A.J., Briggs, P.H., Carlson, R.R., Crock, J.G., Roushey, B.H., Papp, C.S.E., Siems, D.F., Taggert, J.E., Jr., and Welsch, E.P., Part A. Discussion (paper copy): U.S. Geological Survey Open-File Report OF 91-259, 25 p.
28. Cox, S.F., Etheridge, M.A., and Wall, V.J., 1987, The role of fluids in syntectonic mass transport, and the localization of metamorphic vein-type ore deposits: Ore Geology Reviews, v. 2, p. 65-86. (Pubitemid 17622044)
29. Craig, J.R., 2001, Ore-mineral textures and the tales they tell: The Canadian Mineralogist, v. 39, p. 937-956. (Pubitemid 33083033)
30. Craw, D., Windle, S.J., and Angus, P.V., 1999, Gold mineralizaiton without quartz veins in a ductile-brittle shear zone, Macraes mine, Otago Schist, New Zealand: Mineralium Deposita, v. 34, p. 382-394. (Pubitemid 29388798)
31. Craw, D., Begbie, M., and MacKenzie, D., 2006, Structural controls on Tertiary orogenic gold mineralization during initiation of a mountain belt, New Zealand: Mineralium Deposita, v. 41, p. 645-659. (Pubitemid 44541820)
32. Crerar, D., Wood, S., Brantley, S., and Bocarsly, A., 1985, Chemical controls on solubility of ore forming minerals in hydrothermal solutions: Canadian Mineralogist, v. 23, p. 333-352. (Pubitemid 15598758)
33. Crowley, F.A., 1960, Columbium-rare earth deposits, southern Ravalli County, Montana: Montana Bureau of Mines and Geology Bulletin 18, 47 p.
34. Cui, T. Yang, J., and Samson, I.M., 2010, Numerical modeling of hydrothermal fluid flow in the Paleoproterozoic Thelon basin, Nunavut, Canada: Journal of Geochemical Exploration, v. 106, p. 69-76.
35. Daggett, M.D., and Baer, R.L., 1981, An exploration and preliminary engineering evaluation of the Sunshine prospect (no. 0480) Blackbird mining district Lemhi County, Idaho: Unpublished report, Noranda Exploration, Inc., 75 p.
36. Daggett, M.D., and Smit, J.H., 1981, An investigation of surface geology from the Blackbird mine north to Big Deer Creek (no. 0476) Blackbird mining district, Lemhi County, Idaho: Unpublished report, Noranda Exploration, Inc., 20 p.
37. 39Ar dating using the geological survey TRIGA reactor: U.S. Geological Survey Professional Paper 1176, 55 p.
38. deLorraine, W.F., 2001, Metamorphism, polydeformation, and extensive remobilization of the Balmat zinc orebodies, northwest Adirondacks, New York: Society of Economic Geologists, Guidebook Series, v. 35, p. 25-54.
39. du Bray, E., ed., 1995, Preliminary compilation of descriptive geoenvironmental mineral deposit models: U.S. Geological Survey Open-File Report 95-831, 151 p.
40. Duncan, R.J., Wilde, A.R., Mass, R., and Bassano, K., 2005, Syn-metamorphic dates for tourmaline formation around Mount Isa, north-west Queensland Australia, in Mao, J., and Bierlein, F.P., eds., Mineral deposit research: meeting the global challenge, Proceedings of the Eighth Biennial SGA Meeting, Beijing, China, p. 751-754.
41. Earhart, R.L., 1986, Descriptive model of Blackbird Co-Cu: U.S. Geological Survey Bulletin 1693, p. 142.
42. Eiseman, H.H., 1988, Ore geology of the Sunshine cobalt deposit, Blackbird mining district, Idaho: Unpublished M.S. thesis, Golden, Colorado, Colorado School of Mines, 191 p.
43. El Desouky, H.A., Muchez, P., and Cailtreux, J., 2009, Two Cu-Co sulfide phases and contrasting fluid systems in the Katanga Copperbelt, Democratic Republic of Congo: Ore Geology Reviews, v. 36, p. 315-332.
44. Etheridge, M.A., Wall, V.J., and Vernon, R.H., 1983, The role of fluid phase during regional metamorphism and deformation: Journal of Metamorphic Geology, v. 1, p. 205-226.
45. Evans, K.V., and Connor, J.J., 1993, Geologic map of the Blackbird Mountain 15-minute quadrangle, Lemhi County, Idaho: U.S. Geological Survey Miscellaneoous Field Studies map MF-2234, scale 1:62,500.
46. Evans, K.V., and Green, G.N., 2003, Geologic map of the Salmon National Forest and vicinity, east-central Idaho: U.S. Geological Survey Miscellaneous Investigations Map I-2765, scale 1:100,000.
47. Evans, K.V., and Zartman, R.E., 1988, Early Paleozoic alkalic plutonism in east-central Idaho: Geological Society of America Bulletin, v. 100, p. 1981-1987.
48. 1990, U-Th-Pb and Rb-Sr geochronology of Middle Proterozoic granite and augen gneiss, Salmon River Mountains, east-central Idaho: Geological Society of America Bulletin, v. 102, p. 63-73.
49. Evans, K.V., Aleinikoff, J.N., Obradovich, J.D., and Fanning, C.M., 2000, SHRIMP U-Pb geochronology of volcanic rocks, Belt Supergroup, western Montana; evidence for rapid deposition of sedimentary strata: Canadian Journal of Earth Sciences, v. 37, p. 1287-1300.
50. Fisher, F.S., McIntyre, D.H., and Johnson, K.M., 1993, Geologic map of the Challis 1° × 2° quadrangle, Idaho, U.S. Geological Survey Miscellaneous Investigations Series Map I-1819.
51. Formation Capital Corp., 2006a, News release March 20, 2006-Successful drilling concludes on cobalt project: http://www.formcap.com/s/IdahoCo baltProject.asp.
52. 2006b, News release September 21, 2006-Updated resource estimate completed on Idaho cobalt project: http://www.formcap.com/s/IdahoCo baltProject.asp.
53. Forster, M.A., and Lister, G.S., 2008, Tectonic sequence diagrams and the structural evolution of schists and gneisses in multiply deformed terranes: Journal of the Geological Society, London, v. 165, p. 923-939.
54. Fyfe, W.S., 1987, Tectonics, fluids and ore deposits: mobilization and remobilization: Ore Geology Reviews, v. 2, p. 21-36. (Pubitemid 17622047)
55. Gillerman, V.S., Jercinovic, M.J., and Stein, H.J., 2002, U-Pb and Re-Os geochronology suggest a multistage Precambrian-Mesozoic history for thorium and copper mineralization, Lemhi Pass, Idaho [abs.]: Geological Society of America, Abstracts with Programs, v. 34, p. 337.
56. Gillerman, V.S., Otto, B.R., and Griggs, F.S., 2000, Lemhi Pass thorium district: A variant of Proterozoic Iron Oxide (Cu-U-Au-REE) Deposits- [abs.]: Geological Society of America, Abstracts with Programs, v. 32, p. 83.
57. Gilligan, L.B., and Marshall, B., 1987, Textural evidence for remobilization in metamorphic environments: Ore Geology Reviews, v. 2, p. 205-229. (Pubitemid 17622039)
58. Gonzalez-Alvarez, I., and Kerrich, R., 2010, REE and HFSE mobility due to protracted flow of basinal brines in the mesoproterozoic Belt-Purcell Supergroup, Laurentia: Precambrian Research, v. 177, p. 291-307.
59. Groves, D.I., 1993, The crustal continuum model for late-Archean lode-gold deposits of the Yilgarn Block, Western Australia: Mineralium Deposita, v. 28, p. 366-374. (Pubitemid 24425490)
60. Groves, D.I., Bierlein, F.P., Meinert, L.D., and Hitzman, M.W., 2010, Iron oxide copper-gold (IOCG) deposits through Earth history: Implications for origin, lithospheric setting, and distinction from other epigenetic iron oxide deposits: ECONOMIC GEOLOGY, v. 1005, p. 641-654.
61. Hahn, G.A., and Hughes, G.J., Jr., 1984, Sedimentation, tectonism, and associated magmatism of the Yellowjacket Formation in the Idaho cobalt belt, Lemhi County, Idaho: Montana Bureau of Mines and Geology Special Publication 90, p. 65-67.
62. Hahn, G.A., and Sweide, A.P., 1981, Ore mineralogy of the Blackbird mine: A continuing study: Unpublished report, Noranda Exploration, Inc. 13 p.
63. 39Ar: U.S. Geological Survey Open-File Report 88-261, 68 p.
64. Heinrich, E.W., and Levinson, A.A., 1961, Carbonatic niobium-rare earth deposits, Ravalli County, Montana: American Mineralogist, v. 46, p. 1424-1447.
65. Hess, F.L., 1917, Cobalt: Mineral resources of the United States 1917, Part 1-Metals, U.S. Geological Survey, p. 899-901.
66. Hoy, T.R., Gibson, G., and Berg, N.W., 1984, Copper-zinc deposits associated with basic volcanism, Goldstream area, southeastern British Columbia: ECONOMIC GEOLOGY, v. 79, p. 789-814. (Pubitemid 14627529)
67. Hughes, G.J., Jr., 1983, Basinal setting of the Idaho cobalt belt, Blackbird mining district, Lemhi County, Idaho, in The genesis of Rocky Mountain ore deposits-changes with time and tectonics: Denver Region Exploration Geologists Society, 1983 Symposium Proceedings, p. 21-27.
68. Janecke, S.U., Hammond, B.F., Snee, L.W., and Geissman, J.W., 1997, Rapid extension in an Eocene volcanic arc: Structure and paleogeography of an intra-arc half graben in central Idaho: Geological Society of America Bulletin, v. 109, p. 253-267.
69. Johnson, C.A., Landis, G., and Bookstrom, A.A., 2007, Sulfur and helium isotopes in the cobalt+copper±gold deposits of the Idaho cobalt belt [abs.]: Geological Society of America, Abstracts with Programs, v. 39, p. 412.
70. Johnson, R., Close, T., and McHugh, E., 1998, Mineral resource appraisal of the Salmon National Forest, Idaho, U.S. Geological Survey Open-File Report OF-98-478, 277 p.
71. Kelley, W.N., Jr., 1967, Geology and origin of the Woods Creek iron deposit, Ravalli County, Montana: Unpublished M.S. thesis, University Park, Pennsylvania, The Pennsylvania State University, 54 p.
72. Krcmarov, R.L., and Stewart, J.I., 1998, Geology and mineralisation of the Greenmount Cu-Au-Co deposit, southeastern Marimo basin, Queensland: Australian Journal of Earth Sciences, v. 45, p. 463-482. (Pubitemid 28472281)
73. 39Ar ages of late Cenozoic volcanic rocks within and around the Carbondale and Eagle collapse centers, Colorado: Constraints on the timing of evaporiterelated collapse and incision of the Colorado River: Geological Society of America Special Paper 366, p. 213-234.
74. Larocque, A.C.L., Hodgson, C.J., Gabri, L.J., and Jackman, J.A., 1995, Ionmicroprobe analysis of pyrite, chalcopyrite, and pyrrhotite from the Mobrun VMS deposit in NW Quebec: Evidence for metamorphic remobilization of gold: Canadian Mineralogist, v. 33, p. 373-388. (Pubitemid 26458821)
75. Lee, D.E., 1958, A chlorine-rich biotite from Lemhi County, Idaho: American Mineralogist, v. 43, p. 107-111.
76. Link, P.K., Christie-Blick, N., Devlin, W.J., Elston, D.P., Horodyski, R.J., Levy, M., Miller, J.M.G., Pearson, R.C., Prave, A., Stewart, J.H., Winston, D., Wright, L.A., and Wrucke, C.T., 1993, Middle and Late Proterozoic stratified rocks of the western U.S. Cordillera, Colorado Plateau, and Basin and Range province: The Geology of North America, Volume C-2: Boulder, Colorado, Geological Society of America, p. 463-595.
77. Link, P.K., Fanning, C.M., Lund, K., and Aleinikoff, J.N., 2007, Detrital-zircon populations and provenance of Mesoproterozoic strata of east-central Idaho, U.S.A.: Correlation with the Belt Supergroup of southwest Montana: Society for Sedimentary Geology (SEPM) Special Publication 86, p. 101-128.
78. Liu, W., Borg, S., Testemale, D., Etschmann, B., Hazemann, J.-L., Brugger, J., 2011, Speciation and thermodynamic properties for cobalt chloride complexes in hydrothermal fluids at 35-440°C and 600 bar: An in-situ XAS study: Geochimica et Cosmochimica Acta, v. 75, p. 1227-1248.
79. Lopez, D.A., 1981, Stratigraphy of the Yellowjacket Formation of east-central Idaho: U.S. Geological Survey Open-File Report 81-1088, 218 p.
80. Lund, K., 2004, Geology of the Payette National Forest, Valley, Idaho, Washington, and Adams Counties, west-central Idaho: U.S. Geological Survey Professional Paper 1666, 89 p.
81. Lund, K., and Tysdal, R.G., 2007, Stratigraphic and structural setting of sediment- hosted Blackbird gold-cobalt-copper deposits, east-central Idaho, U.S.A: Society for Sedimentary Geology (SEPM) Special Publication 86, p. 129-147.
82. Lund, K., Evans, K.V., and Esparza, L.E., 1983a, Mineral resource potential map of the Special Mining Management Zone-Clear Creek, Lemhi County, Idaho: U.S. Geological Survey Miscellaneous Field Studies Map MF-1576-A, scale 1:50,000, with pamphlet.
83. Lund, K., Rehn, W.M., and Holloway, C.D., 1983b, Geologic map of the Blue Joint Wilderness study area, Ravalli County, Montana, and the Blue Joint roadless area, Lemhi County, Idaho: U.S. Geological Survey Miscellaneous Field Studies MF-1557-B, scale 1:50,000.
84. Lund, K., Snee, L.W., and Evans, K.V., 1986, Age and genesis of preciousmetals deposits, Buffalo Hump district, central Idaho-implications for depth of emplacement of quartz veins: ECONOMIC GEOLOGY, v. 81, p. 990-996. (Pubitemid 16608187)
85. Lund, K., Alminas, H.V., Kleinkopf, M.D., Ehmann, W.J., and Bliss, J.D., 1990, Preliminary mineral resource assessment of the Elk City 1°X2° quadrangle, Idaho and Montana; Compilation of geologic, geochemical, geophysical, and mineral deposits information: U.S. Geological Survey Open- File Report 89-0016, 118 p.
86. Lund, K., Evans, K.V., Doughty, P.T., Chamberlain, K.R., Link, P.K., and Winston, D., 2003a, Geology of the Brushy Gulch fault and its hangingwall and footwall rocks, eastern Idaho: Northwest Geology, v. 32, p. 74-85.
87. Lund, K., Tysdal, R.G., Evans, K.V., and Winkler, G., 2003b, Geologic map of the east half of the Salmon National Forest, in Evans, K.V., and Green, G.N., Geologic map of the Salmon National Forest and vicinity, east-central Idaho: U.S. Geological Survey Miscellaneous Investigations Map I- 2765, 19 p.
88. Lund, K., Evans, K.V., and Kunk, M.J., 2007, Structural evolution of goldbearing cobalt-copper deposits of the Blackbird mining district, east-central Idaho [abs.]: Geological Society of America Abstracts with Programs, v. 39, no. 6, p. 535.
89. Lund, K., Aleinikoff, J.N., Evans, K.V., duBray, E.A., Dewitt, E.H., and Unruh, D.M., 2010, SHRIMP U-Pb dating of recurrent Cryogenian and Late Cambrian-Early Ordovician alkalic magmatism in central Idaho: Implications for Rodinian rift tectonics: Geological Society of America Bulletin, v. 122, p. 430-453 (doi: 10.1130/B26565.1).
90. Lydon, J.W., 2007, Geology and metallogeny of the Belt-Purcell basin: Geological Association of Canada, Mineral Deposits Division, Special Publication 5, p. 581-607.
91. Marshall, B., and Gilligan, L.B., 1989, Durchbewegung structure, piercement cusps, and piercement veins in massive sulfide deposits: Formation and interpretation: ECONOMIC GEOLOGY, v. 84, p. 2311-2319.
92. Marshall, B., and Spry, P.G., 2000, Discriminating between regional metamorphic remobilization and syntectonic emplacement in the genesis of massive sulfide ores: Reviews in Economic Geology, v. 11, p. 39-79.
93. Marshall, B., Vokes, F.M., Larocque, A.C.L., 2000, Regional metamorphic remobilization: upgrading and formation of ore deposits: Reviews in Economic Geology, v. 11, p. 19-38.
94. Marshall, D., 2008, Economic Geology models 2. Melt inclusions of native silver and native bismuth: A re-examination of possible mechanism for metal enrichment in five-element deposits: Geoscience Canada, v. 35, p. 137-145.
95. Matthai, S.K., Heinrich, C.A., and Driesner, T., 2004, Is the Mount Isa copper deposit the product of forced brine convection in the footwall of a major reverse fault?: Geology, v. 32, p. 357-360. (Pubitemid 38536508)
96. McClay, K.R., 1982, Tectonic and sedimentary structures in sulphide orebodies of Mount Isa, Australia, and Sullivan, Canada: Transactions, Institute of Mining and Metallurgy, Section B. Applied Earth Science, v. 91, p. B146-B151.
97. 1983, Fabrics of deformed sulphides: Geologische Rundschau, v. 72, p. 469-491.
98. McGowan, R.R., Roberts, S., Foster, R.P., Boyce, A.J., Coller, D., 2003, Origin of the copper-cobalt deposits of the Zambian Copperbelt: An epigenetic view from Nchanga: Geology, v. 31, p. 497-500. (Pubitemid 36844898)
99. McGowan, R.R., Roberts, S., and Boyce, A.J., 2006, Origin of the Nchanga copper-cobalt deposits of the Zambian Copperbelt: Mineralium Deposita, v. 40, p. 617-638. (Pubitemid 43091330)
100. Migdisov, A.A., Williams-Jones, A.E., and Wagner, T., 2009, An experimental study of the solubility and speciation of the rare earth elements (III) in fluoride- and chloride-bearing aqueous solutions at temperatures up to 300°C: Geochimica et Cosmochimica Acta 73, p. 7087-7109.
101. Molak, B., 1995, Some structural and petrological aspects of the Cu (Co) mineralization in the Copperbelt and northwestern provinces of Zambia: Royal Musem of Central Africa (Belgium) Annales-Sciences Geologiques, v. 101, p. 95-102.
102. Muchez, P., Brems, D., Clara, E., De Cleyn, A., Lammens, L., Boyce, A., De Muynck, D., Mukumba, W., and Sikazwe, O., 2010, Evolution of Cu-Co mineralizing fluids at Nkana mine, Central African copper belt, Zambia: Journal of African Earth Sciences, v. 58, p. 457-474.
103. Nash, J.T., 1989a, Geology and geochemistry of synsedimentary cobaltiferous- pyrite deposits, Iron Creek, Lemhi County, Idaho: U.S. Geological Survey Bulletin 1882, 33 p.
104. 1989b, Chlorine-rich biotites from the Blackbird mining district, Lemhi County, Idaho-evidence for a saline hydrothermal brine: U.S. Geological Survey Open-File Report 89-445, 25 p.
105. Nash, J.T., and Connor, J.J., 1993, Iron and chlorine as guides to stratiform Cu-Co-Au deposits, Idaho cobalt belt, USA: Mineralium Deposita, v. 28, p. 99-106. (Pubitemid 23392548)
106. Nash, J.T., and Hahn, G.A., 1987, New geochemical guides to Au-rich Co-Cu lodes in the Blackbird mining district, Lemhi County, Idaho, in Sachs, J.S., ed., USGS research on mineral resources-1987, U.S. Geological Survey Circular 995, p. 51-52.
107. 1989, Stratabound Co-Cu deposits and mafic volcaniclastic rocks in the Blackbird mining district, Lemhi County, Idaho: Geological Association of Canada Special Paper 36, p. 339-356.
108. Nash, J.T., Hahn, G.A., and Saunders, J.A., 1987, The occurrence of gold in siliceous Co-Cu exhalite deposits of the Blackbird mining district, Lemhi County, Idaho: U.S. Geological Survey Open-File Report 87-410, 14 p.
109. Nash, J.T., Connor, J.J., Curry, K.J., and Papp, C.S., 1990, Anomalous chlorine in iron-rich strata, Yellowjacket Formation, Lemhi County, Idaho: Analytical data and discussion: U.S. Geological Survey Open-File Report 90-721, 36 p.
110. Nold, J.L., 1990, The Idaho cobalt belt, northwestern United States-a metamorphosed Proterozoic exhalative ore district: Mineralium Deposita, v. 25, p. 163-168. (Pubitemid 20723338)
111. Pan, Y., and Therens, C., 2000, The Werner Lake Co-Cu-Au deposit of the English River subprovince, Ontario, Canada: Evidence for an exhalative origin and effects of granulite facies metamorphism: ECONOMIC GEOLOGY, v. 95, p. 1635-1656. (Pubitemid 32386298)
112. Panneerselvam, K., Macfarlane, A., and Salters, V., 2004, Lead isotope constraints on the origin of Proterozoic sediment-hosted cobalt-copper ores of central Idaho [abs.]: Geological Society of America, Abstracts with Programs, v. 36, p. 517.
113. Peltonen, P., Kontinen, A., Huhma, H., and Kuronen, 2008, Outokumpu revisited: New mineral deposit model for the mantle peridotite-associated Cu-Co-Zn-Ni-Ag-Au sulphide deposits: Ore Geology Reviews, v. 33, p. 559-617.
114. Purdue, G.L., 1975, Geology and ore deposits of the Blackbird district, Lemhi County, Idaho: Unpublished M.S. thesis, Albuquerque, NM, University of New Mexico, 49 p.
115. Rasmussen, B., Fletcher, I.R., Muhling, J.R., Thorne, W.S., and Broadbent, G.C., 2007, Prolonged history of episodic fluid flow in giant hematite ore bodies: Evidence from in situ U-Pb geochronology of hydrothermal xenotime: Earth and Planetary Science Letters, v. 258, p. 249-259. (Pubitemid 46780113)
116. Reed, G.C., and Herdlick, J.A., 1947, Blackbird cobalt deposits, Lemhi County, Idaho: U.S. Bureau of Mines, Report of Investigations 4012, 40 p.
117. Roberts, W.A., 1953, Metamorphic differentiates in the Blackbird mining district, Lemhi County, Idaho: ECONOMIC GEOLOGY, v. 48, p. 447-456.
118. 39Ar standards: Earth and Planetary Science Letters, v. 47, p. 887-898.
119. Ross, C.P., 1925, The copper deposits near Salmon, Idaho, U.S. Geological Survey Bulletin 774, p. 44.
120. Rubenach, M.J., and Lewthwaite, K.A., 2002, Metasomatic albitites and related biotite-rich schists from a low-pressure polymetamorphic terrane, Snake Creek anticline, Mount Isa inlier, north-eastern Australia: Microstructures and P-T-d paths: Journal of Metamorphic Geology, v. 20, p. 191-202. (Pubitemid 34128953)
121. Ruppel, E.T., 1975, Precambrian Y sedimentary rocks in east-central Idaho: U.S. Geological Survey Professional Paper 889-A, 23 p.
122. Sahinen, U.M., 1957, Mines and mineral deposits, Missoula and Ravalli counties, Montana: Montana Bureau of Mines and Geology Bulletin 8, p. 63.
123. Sani, F., 1990, Extensional veins and shear joint development in a thrust-fold zone (Northern Apennines, Italy): Geological Society Special Publication, no. 54, p. 483-490.
124. Schandl, E.S., and Davis, D.W., 2000, Geochronology of the Sullivan deposit: U-Pb and Pb-Pb Ages of zircons and titanites: Mineral Deposits Division of the Geological Association of Canada, Special Publication 1, p. 127-135.
125. Schmid, R., Fettes, D., Harte, B., Davis E., Desmons, J. A, 2007, Systematic nomenclature for metamorphic rocks: 1. How to name a metamorphic rock. Recommendations by the IUGS Subcommission on the Systematics of Metamorphic Rocks, web version of 01.02.2007, http://www.bgs.ac.uk/ SCMR/docs/papers/paper-1.pdf
126. Selley, D., Broughton, D., Scott, R., Hitzman, M., Bull, S., Large, R., Mc- Goldrick, P., Croaker, M., Pollington, N., Barra, F., 2005. A new look at the geology of the Zambian Copperbelt: ECONOMIC GEOLOGY 100TH ANNIVERSARY VOLUME, p. 965-1000.
127. Sharp, W.N., and Cavender, W.S., 1962, Geology and thorium bearing deposits of the Lemhi Pass area, Lemhi County, Idaho and Beaverhead County, Montana: U.S. Geological Survey Bulletin 1126, 76 p.
128. Shenon, P.J., Full, R.P., Bauer, H.L., Jr., and Snyder, D.M., 1955, Geologic study of the Blackbird-Big Deer Creek area: Unpublished report, Toronto, Northfield Mines, Inc. 17 p.
129. Shockey, P.N., 1957, Reconnaissance geology of the Leesburg Quadrangle, Lemhi County, Idaho: Idaho Bureau of Mines and Geology Pamphlet 113, 42 p.
130. Sibson, R.H., 2004, Controls on maximum fluid overpressure defining conditions for mesozonal mineralization: Journal of Structural Geology, v. 26, p. 1127-1136. (Pubitemid 38531700)
131. Sillitoe, R.H., Perello, J., and Garcia, A., 2010, Sulfide-bearing veinlets throughout the stratiform mineralization of the Central African Copperbelt: temporal and genetic implications: ECONOMIC GEOLOGY, v. 105, p. 1361-1368.
132. Sims, P.K., Lund, K., and Anderson, E., 2005, Precambrian crystalline basement map of Idaho-an interpretation of aeromagnetic anomalies, U.S. Geological Survey Scientific Investigations Map 2884.
133. Skinner, B.J., and Johnson, C.A., 1987, Evidence for movement of ore materials during high-grade metamorphism: Ore Geology Reviews, v. 2, p. 191-204.
134. Skirrow, R.G., and Walshe, J.L., 2002, Reduced and oxidized Au-Cu-Bi iron oxide deposits of the Tennant Creek inlier, Australia: An integrated geologic and chemical model: ECONOMIC GEOLOGY, v. 97, p. 1167-1202. (Pubitemid 36101314)
135. Slack, J.F., 2006, High REE and Y concentrations in Co-Cu-Au ores of the Blackbird district, Idaho: ECONOMIC GEOLOGY, v. 101, p. 275-280. (Pubitemid 44501603)
136. 2007, Geochemical and mineralogic studies of sulfide and iron oxide deposits in the Idaho cobalt belt: U.S. Geological Survey Open-File Report 2007-1280, p. 22-28.
137. Slack, J.F., Aleinikoff, J.N., and Fanning, C.M., 2006, SHRIMP U-Pb geochronology of hydrothermal monazite in Co-Cu-Au ores of the Blackbird district, Idaho [abs.]: Geological Society of America, Abstracts with Programs, v. 38, p. 372.
138. Snyder, D.M., 1957, Big Deer Creek area, Lemhi County, Idaho: Unpublished report, Idaho Metallurgical Industries, Inc., 18 p.
139. Sobel, L.S., 1982, Sedimentology of the Blackbird mining district, Lemhi County, Idaho: Unpublished M.S. thesis, Cincinnati, Ohio, University of Cincinnati, 235 p.
140. Staatz, M.H., 1979, Geology and mineral resources of the Lemhi Pass thorium district, Idaho and Montana: U.S. Geological Survey Professional Paper 1049-A, 90 p.
141. Steven, N.M., and Moore, J.M., 1995, Tourmalinite mineralization in the Late Proterozoic Kuiseb Formation of the Damara orogen, central Namibia: Evidence for a replacement origin: ECONOMIC GEOLOGY, v. 90, p. 1088-1117.
142. Tomkins, A.G., 2007, Three mechanisms of ore re-mobilisation during amphibolite facies metamorphism at the Montauban Zn-Pb-Au-Ag deposit: Mineralium Deposita, v. 42, p. 627-637. (Pubitemid 47108538)
143. Toth, G., and Hahn, G.A., 1982, Soil geochemistry and surface geology of the Blackbird mine stratigraphy (no. 0476) Blackbird mining district, Lemhi County, Idaho: Unpublished report, Noranda Exploration, Inc., 138 p.
144. Tysdal, R.G., 2000a, Stratigraphy and sedimentology of Middle Proterozoic rocks in northern part of Lemhi Range, Lemhi County, Idaho: U.S. Geological Survey Professional Paper 1600, 40 p.
145. 2000b, Revision of Middle Proterozoic Yellowjacket Formation, central Idaho: U.S. Geological Survey Professional Paper 1601-A, 13 p.
146. 2002, Structural geology of western part of Lemhi Range, east-central Idaho: U.S. Geological Survey Professional Paper 1659, 33 p.
147. 2003, Correlation, sedimentology, and structural setting, upper strata of Mesoproterozoic Apple Creek Formation and lower strata of Gunsight Formation, Lemhi Range to Salmon River Mountains, east-central Idaho: U.S. Geological Survey Professional Paper 1668-A, p. 1-22. (Pubitemid 37551604)
148. Tysdal, R.G., and Desborough, G.A., 1997, Scapolitic metaevaporite and carbonate rocks of Proterozoic Yellowjacket Formation, Moyer Creek, Salmon River Mountains, central Idaho: U.S. Geological Survey Open-File Report OF-97-268, 26 p.
149. Tysdal, R.G., Lund, K., and Evans, K.V., 2003, Geologic map of the west half of the Salmon National Forest: U.S. Geological Survey Miscellaneous Investigations Map I-2765, scale 1:100,000.
150. Umpleby, J.B., 1913, Geology and ore deposits of Lemhi County, Idaho: U.S. Geological Survey Bulletin 528, 182 p.
151. Upton, P., Begbie, M.J., and Craw, D., 2008, Numerical modelling of mechanical controls on coeval steep and shallow dipping auriferous quartz vein
152. Vhay, J.S., 1948, Cobalt-copper deposits of the Blackbird district, Lemhi County, Idaho: U.S. Geological Survey Strategic Minerals Investigation Preliminary Report 3-219, 26 p.
153. Vokes, F.M., 1969, A review of the metamorphism of sulfide deposits: Earth- Science Reviews, v. 5, p. 99-143.
154. 1971, Some aspects of the regional metamorphic mobilization of preexisting sulphide deposits: Mineralium Deposita, v. 6, p. 122-129.
155. Winston, D., and Link, P.K., 1993, Middle Proterozoic rocks of Montana, Idaho, and eastern Washington: The Belt Supergroup, in Reed, J.C., Jr., Bickford, M.E., Houton, R.S., Link, P.K., Rankin, R.W., Sims, P.K., and VanSchmus, W.R., ed., Precambrian: Conterminous U.S., The Geology of North America, Volume C-2: Decade of North American Geology: Boulder, Colorado, Geological Society of America, p. 463-595.
156. Winston, D., Link, P.K., and Hathaway, N., 1999, The Yellowjacket is not the Prichard and other heresies: Belt Supergroup Correlations, Structure and Paleogeography, east-central Idaho, in Hughes, S.S., and Thackray, G.D., eds., Guidebook to the geology of eastern Idaho: Pocatello, Idaho, Idaho Museum of Natural History, p. 3-20.
157. Witt, W.K., Knight, J.T., and Mikucki, E.J., 1997, A synmetamorphic lateral fluid flow model for gold mineralization in the Archean Southern Kalgoorlie and Norseman terranes, Western Australia: ECONOMIC GEOLOGY, v. 92, p. 407-437.
158. Yardley, B.W.D., and Graham, J.T., 2002, The origins of salinity in metamorphic fluids: Geofluids, v. 2, p. 249-256. (Pubitemid 35289124)
159. York, D., 1969, Least squares fitting of a straight line with correlated errors: Earth and Planetary Sciences Letters, v. 5, p. 320-324.
160. Zirakparvar, N.A., Bookstrom, A.A., and Vervoort, J.D., 2006, Cretaceous garnet growth in the Idaho cobalt belt: Evidence from Lu-Hf geochronology [abs.]: Geological Society of America, Abstracts with Programs, v. 39, p. 413.