Metallogenesis and Tectonics of the Russian Far East, Alaska, and ...

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FL - Finlayson Lakm FR-FmLake LI - Liard MP - M.anilh P- MY-Mystic EARLY MISSISSIPPIAN NBR-Ncmm&mmR.rJge ~HnmsLle FAULTS L NCO RL - _ NQc(hlwn wiLere Cdg SD-sam-wwl TO-TonwndRiuer URS-UNlhrn68udwRivrrn YR - Yd)mlm Figure 29. Mississippian (360 to 320 Ma) stage of mebllogenic-tectonic model. Refer to text for expianatlon of metaltogenic-tectonic events. Refer to text for explanation of metalbgenic-tectonic events, to tables 3 and 4 for descriptions metallogenic belts and significant deposits, and to figure 18 for explanation of abbreviations, symbols, and patterns. Adapted from Nokleberg and others (1997b, 1998,2000). Red Dog Creek SEDEXZn-Pb Deposit The Red Dog Creek SEDEX Zn-Pb-Ag deposit (fig. 39) (Tailleur, 1970; Phhula, 1978; Booth, 1983; Joseph T. Blhuta, r 'C v, .,. I c LAI\A~...P .A n .(XI LAI\.-.c~ ..,-;ti- rrrmm.ln IOQA. I ~,..,-l IQQc- LA,.,- ., -..A L.L. ,\rhm,r 1bQ/;. c,L-;A 1 VUIIE, J.J. IVIVULIIL, a1u U. I.. IVIUVIG, WIILLLU LVIIUUII., L xu-.. Lau6L (ULU V~ULIJ, ~ ~u-1, LI~VVIG auu VLYGL~, 170~~ cibuuuu, 1997a; Schmidt and Zierenberg, 1988; Bundtzen and others, 1996) consists of disseminated and massive sphateritc, galena, pyrite, and barite in Mississippian and Pennsylvanian shale. chert, and silica exhalite ofthe Kuna Formation. The deposit is 1,600 m long and up to 150 m thick and occurs near the base of the Kuna Formation. Bnrite-rich lenses, up to 50 m hick i6cbily cap the deposit. The sulfide minerals occur as: disseminated sulfides in organic-rich siliceous shale; coarse-grained sulfide veins; fine-gained, fragmental-textured to indistinctly bedded sulfides; and silica exhalite lenses. Minor hydrothermal alteration consists of
silicification and decarbonatization of shale. A small, propylitically altered diorite plug or hydrothermally altered pyroxene andesite flow occurs at north end of deposit. Prior to mining, which began in 1990, the Main deposit was estimated to contain 85 million tonnes grading 17.1% Zn, 5% Pb, and 82 g/t Ag. By the end of 1999, the four SEDEX deposits at Red Dog (Main, Aggaluk, Hill Top, Anarrag) contained an estimated 142.3 million tonnes grading 15.8% Zn, 4.3% Pb, and 83 g/t Ag (Swainbank and Szumigla, 2000) The host rocks and deposit are extensively structurally imbricated along many subhorizontal thrust faults. Graywacke of the Cretaceous Okpihak Formation structurally underlies deposit. %q Okpikruak Fmrnation - shale > sandstone (Cretaceous) Ohk Famatan - chert and shale (Triassic) F 1 Siksikpuk Form- - shale and chert (Permian and Pmy+vanian) larite and hritic ore (Pennsylvanian and I RAississrpplan) .. . Sit)cews ore and s #k rock (Pennsylvanian rn & Mississippiart) .. . Veined EssI - - 1 siliceous bbdc shak Kuna Formation Calcareous Mack shale (Pennsylvanian I and ~ississi~~ian) Vdcanidask rocks - I : Dri# hole I / Thrust fautl Contact Figure 30. Red Dog Creek sedimentary exhalative Zn-Pb-barite deposit, Northwestern Brooks Range metallogenic belt, Northern Alaska. Schematic geologic cross section through the Main deposit showing the structural interpretation of thrust plates and the nvertr~rned fold related tn thrrrst farrlts Snctinn alnnn N An F Adantnd frnm Schmidt (1QQ7\ Drenchwater Creek SEDEXZn-Pb and (or) Kuroko Massive Sulfide Deposit The Drenchwater Creek SEDEX Zn-Pb and (or) kuroko massive sulfide deposit consists of disseminated and massive sphalerite, galena, pyrite, and barite in Mississippian shale, chert, tuff, and quartz-exhalite of the Kagvik sequence (Nokleberg and Winkler, 1982; Lange and others, 1985). Volcanic sandstone and keratophyre are locally abundant. The sulfides occur as
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I EUSGS science Ior a changing wwld
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CONTENTS Abstract .................
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5 : 3 . Kedon metall lo genic Belt
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Parson and Brisco Barite Vein and G
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Overview ..........................
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Chepak Granitoid-Related Au Deposit
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Origin of and Tectonic Controls for
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Au-Ag Epithermal Vein Deposits Asso
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Metallogenesis and Tectonics of the
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and Byalobzhesky (1996). A volume c
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1,079 significant mineral deposits
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Acknowledgements We thank the many
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0 --mmm=oRuwrrrur ommmmarUaAll NEr-
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Figure 3. Generalized map of mtljor
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Archean granulite facies metamorphi
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Figure 5. Oroek sediment-h section
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1 a a - --rich sandstone ~b-Qmg@ner
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Origin of and Tectonic Setting for
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occur in clastic and impure carbona
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Figure 7. Sullivan sedimentary-exha
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I 1997a, b, 1998). The massive sulf
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Ma which locally form extensive plu
Page 48 and 49: Figure 10. Gerbikanskoe vdcanogenic
Page 50 and 51: Origin of and Tectonic Controls for
Page 52 and 53: from crystalline basement of craton
Page 54 and 55: Figure 13. Howards Pass sedknenWy e
Page 56 and 57: McLean Arm Porphyry Cu-Mo District
Page 58 and 59: [..'......I Surfia'al deposits (Hol
Page 60 and 61: Figwe 16. GeneraCied map of major M
Page 62 and 63: .- *.-* *. . - - ---- -A - EARLY MI
Page 64 and 65: Metallogenic Belt Formed During Col
Page 68 and 69: several tens of meters to 1,300 m l
Page 70 and 71: Goldfarb (197) who interprets that
Page 72 and 73: WTF and Red Mountain Kuroko Massive
Page 74 and 75: interpreted by and as part of a ext
Page 76 and 77: Mount Sicker Metallogenic Belt of K
Page 78 and 79: interpreted as vents. The deposit c
Page 86 and 87: hosted in the Yarkhodon subterrane
Page 88 and 89: origin of the younger Triassic(?) B
Page 92 and 93: Mississippian age of mineralizalioi
Page 94 and 95: Monger and Nokleberg, 1996; Noklebe
Page 96 and 97: 1997a, b). Most of the magnesite an
Page 100 and 101: disseminations in chert, disseminat
Page 102 and 103: U F~gure 32 GemMzed m p of mejw -ni
Page 104 and 105: terrane, and by the Stikine Assembl
Page 108 and 109: Metallogenic-Tectonic Model for Lat
Page 110 and 111: . I . r ; 4 ~ (9) During subduction
Page 112 and 113: Eastern Alaska Range Metallogenic B
Page 114 and 115: individual flows range from 5 cm to
Page 116 and 117: occurrence of turbiditic clastic ro
Page 118 and 119: along the with tectonically-related
Page 120 and 121: : m- 3- w43 k M- u m u~u) mtl 'M~!A
Page 122 and 123: island-arc volcanic rocks of the Ni
Page 124 and 125: -- - //// EpldoW Figure 41. Nickel
Page 126 and 127: (TC), and Toodoggone (TO) belts whi
Page 128 and 129: (4) The Angayucham Ocean (Kobuck Se
Page 130 and 131: lueschist units and the McHugh Comp
Page 134 and 135: Figure 46. Lawyers Au-Ag epitiefmel
Page 138 and 139: (5) The Angayucham Ocean (Kobuck Se
Page 140 and 141: Figure 49 Generaltzed map Of mbjm L
Page 142 and 143: continental-margin terranes which w
Page 144 and 145: Pokrovskoe Au-Ag Epithermal Vein De
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Granite-porphm and wanits W e ~~ hl
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subordinate adularia, dolomite, cel
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shale, basalt, plagiorhyolite, silt
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ocks and serpentinite which occur a
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interpreted as forming in the Juras
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Fault / Figure 57. Bond Creek and O
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Klukwan-Duke Metallogenic Bett of M
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tonnes of ore mined between 1967 an
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Cariboo Metallogenic Belt of Au Qua
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Sheep Creek Au-Ag Polymetallic Vein
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---. .% of the North American Conti
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- OwiapaasembC Cmhmmmand Cemmcl. an
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in the west-central part of the Rus
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for about 850 krn (ZalishshaL ad oh
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Stanovoy Metallogenic Belt of Grani
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Goryachev, 1995, 1998, 2003) consis
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Altinskoe, Aragochan, Dalnee, Dokhs
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comprises up to 70-80% in some ore
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The Au quartz vein deposits are int
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leucogranite plutons form large, ho
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+ , . Diorite phyry dike (Early ~ta
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- . --- Origin of and Tectonic Cont
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Britannia Metallogenic Belt of Kuro
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Specific Events for Late Early Cret
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Figure 73. Solnechnae Sin qu- ~d~ n
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- Origin of and Tectonic Controls f
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Nome Metallogenic Belt of Au Quartz
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quartz vein deposits of the Souther
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Selwyn Plutonjc Suite. The host roc
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along the western end in the Eagle
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101 Ma (K.M. Dawson, unpublished da
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I Bayonne Metallogenic Belt of Porp
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., (VV) belts. These zones and beb
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I (2) The East Sikhote-Alin (es) co
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Metallogenic Belt Formed in Late Me
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The Pb-Zn polyrnetallu: vein depb a
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olistolith. The deposit is currentl
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the core of the veins, chlorite, Mn
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Tayozhnoe Ag Epithermal Vein Deposi
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Figure 90. lskra deposit Sn polyrne
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- El (Late ~re&ceous) I+ we cmm=s)
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Figure 93. Mnogovershinnoe AMq @pWw
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immed by wehrlite, olivine-magnetit
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Eastern Asia-Arctic Metallogenic Be
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which would be hosted in the early
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Etandzha Porphyry Cu-Mo and Muromet
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0- / Fadt . . Au veins and pods Fig
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Sentachan Clastic-Sediment-Hosted A
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I I I Undifferentiated vdcanic and
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.r . : . -d ' . . ,, $44 . assembla
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closure, the Chukotka supertca&c wa
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- Mgh anglefau#or prsminant Fitwar
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intrude and crosscut both the relat
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Figure 101 8. Ke~ecolt &4W d KemwaI
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Figure 103. Generalized map of majo
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metallogenic belt (SP) which contai
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Eastern Asia-Arctic Metallogenic Be
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Valunistoe Au-Ag Epithermal Vein De
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Lost River Sn-W Skarn and Sn Greise
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Wheeler Creek, Clear Creek, and Zan
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Au veln,and hots spring deposits at
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Chicken Mountain Cu-Au Deposit The
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Chip sample location - Fault / Cont
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A proximate laatbm c#f C h # d ~nar
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0.03 1% Mo; and (3) for a hypogene
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others, 1994c. 1997~). The granitoi
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Cross section - - South greisen zon
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198 1). The mine at the deposit pro
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Beatson (Latouche) and Ellamar Bess
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CRETACEOUS Mount Leonard St& gueYtr
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n pJ pRanens. Pd-dc i3 Meeomic .---
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Figure 120. Huckleberry porphyry Cu
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0.15% Cu (ox), 0.127 g/t Au, and 0.
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Zone are 188 million tonnes grading
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Kitsault (B.C. Moly) Porphyry Mo De
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million tonnes grading 0.42% Cu, 0.
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extension. The Coryell Suite is int
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elated deposits. Forming in the bac
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Metallogenic Belts Formed in Tertia
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Hg Deposits Hg deposits occur throu
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Maletoivayam Sulfur-Sulfide Deposit
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(5) A major orthogonal junction for
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Metallogenic Belts Formed in Tertia
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occur in these tabular, altered sil
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summarlzed above are used by analog
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the Aleutian volcanic belt. The Yak
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metamorphism, anatectic granites, a
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References Cited Abbott, G., 1981,
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Society of America Abstracts with P
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Sciences, North-Eastern lnterdiscip
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Burgoyne, A.A., 1986, geology and e
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Canadian Cordillera, Yukon-northeas
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the Koryak Highlands: Transactions
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during 1984: U.S. Geological Survey
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Northeast Scientific Intergrated Re
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House, G.D., and Ainsworth, B., 199
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International Field Conference in V
Page 348 and 349:
lithosphere in flood basalt genesis
Page 350 and 351:
MacKevett, E.M., Jr., 1978, Geologi
Page 352 and 353:
Miller, M.L., Bundtzen, T.K., and K
Page 354 and 355:
Nekrasov, I.Ya., 1995, Genetic type
Page 357 and 358:
Pakhomova, V.. Silyanik, V., Popov,
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Pollack, John, 1997, Summary report
Page 361 and 362:
1993: British Columbia Geological S
Page 363 and 364:
Schroeter, T.G., 1987, Golden Bear
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Geology of the Liese zone, Pogo pro
Page 367 and 368:
Colorado, Geological Society of Ame
Page 369 and 370:
lnstitute of Mining and Metallurgy
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Anorthosite apatite-Ti-Fe Gabbroic
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TABLE 2. Summary of correlations an
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TABLE 2. Summary of correlations an
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9! TABLE ectonic environment of Pro
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(Abbreviation) Rassokha (RA) Dzhard
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Metallogenic Belt (Abbreviation) Be
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Major Mineral Deposits Types. Envir
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(Abbreviation) Guichon (GU) I Belt
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Major Mineral Deposits Types. Envir
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(Abbreviation) (Significant Mineral
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(Abbreviation) Adycha-Taryn (EAAT)
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~etallo~enic Belt Major Mineral Dep
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Metallogenic Belt (Abbreviation) Ca
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TABLE 4. Significant lode deposits,
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Mineral Deposit Model Major Metals
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Deposit Name Mineral Deposit Model
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Deposit Nmme Mineral Deposit Model
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p;. ;A'..* Deposit Name Mineral Dep
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De~osit Name Mineral Deposit Model
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