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

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(5) The Angayucham Ocean (Kobuck Sea of Plafker and Berg, 1994), along with the South Anyui Ocean, continued to receive sparse continenlal-denved detritus. Previously rifted terranes, ~ncluding be Kilbuck-Idono cratonal (K1) and the combined Nixon Fork-Dillinger-Mystic passive continental-margin (NX, DL, MY) terranes were near the North American Craton Margin. (6) The dextral-slip imbrication of the Stikinia-Quesnellia arc and associated subduction-zone temes was completed along the Tally Ho shear zone (Hansen and others, 1990; Hart, 1995). Or alternatively, the oroclinal warping of the Stkinia- Quesnellia island-arc and associated subduction zone terranes was completed (not depicted in fig. 47; Mihalynuk and others, 1994). For either interpretation, migration of the Stikinia-Quesnellia arc and associated terranes toward North America was accomplished by subduction and (or) obductian of Ihe Seventymile Ocean plate along the continental margin. (8) The subduction-related volcanic and plutonic arc rocks of lbe Quesnellia part of the arc, consisting of the Takla Group and the coeval igneous belts formed in response to continued subduction of part of the Cache Creek Ocean plate (CC; Mihalynuk and others, 1994). The Stikinia part of the arc consisted of the extensive suite of the subductioo-related volcanic and plutonic arc rocks of the Hazelton Group hich also forined in response to subduction of part of the Cache Creek Ocean plate. Remnants of this oceanic plate may be preserved in the termne of ultrarnafic and related rocks which occurs discontinuously along the Denali strike-slip fault (DE, fig. 47) for several hundred kilometers (Nokleberg and others, 1994b). (9) Forming in the Stikinia-Quesneliia arc and continuing on fkom the Early Jurassic were the Coast Mountains (CM), Copper Mountain (North; CMN), Copper Mountain (South; CMS), Galore (GL), Guichon (GU), Klotassin (U), Texas Creek (TC), and Toodoggone (TO) belts which contain either granitic magmatism-related deposits or deposits related to felsic to mafic marine volcanism. (10) Also completed was obckrction of parts of the Seventymle and Slide Mountain Ocean plates onto the North American Craton Margin (NAM; Mihalynuk and others, 1994). Migration of the Stikinia-Quesnellia arc and associated temes toward the North American Craton Margin was accomplished by subduction of he Seventymile Ocean pkte along the continentalmargin and by obduction. (1 1) Outboard and perhaps at a lower paleoktitude (either 25" or 4S0), the Talkeetna and Bonanza arcs continued activity in the Wrangellia supertenane (WRA). This extensive arc formed along most of the length of the Wrangellia supertemrna with coeval equivalents in the Cadwallsder (CD) island arc and Methow (MT) turbidite-basin tmes. Forming ia the m and continuing on from the Early Jurassic were the Talkeetna Mountains-Alaska Range metallogenic belt, which contains lcuroko massive sulfide deposits, the Alaska Peninsula (AP) metallogenic belt, which contains Cu- and Fe-skam deposits, and the Island Porphyry (IP) metallogenic belt, which contains granitic-magmatism-related deposits. Associated with the Talkeetna and Bonanza arcs was subduction of part of the Cache Creek Ocean plate to form the Chugach (CG), Bridge River (BR), and possibly Baker (BA) terranes. Late Jurassic Metallagenic Belts (163 to 144 Ma; Figures 48,49) Overview ~hemajor~ate~uraegicnaetlllo~bbbkRPsrdtanFrct~~&&~ in table 3 and portrayed on 6gu.m 48 and 49. 'Phr:majar kb 8$f~ll~. (1) h thc h&m &%st, &% &k@ (A) btrlt, which contains zoned mafic-* Ti dep&&, b W in .tosadxdWn&b plutons hlm&g !hmrka zone terrane. The belt is intaprcted as fomxbg aha a &om aWin~11tal margin. (2) Also ia bh9 !hWa& i$ tbs North Bureya (NB) belt of granitic-mgmhn-relaled deposits which is inteqmt6d as fbdnghhe UBPlaLsn $a&tm&dmargin arc. (3) In the central part aftbe Rudan Far E!ast is the Stawvoy (ST) belt which contains smatecde, grsnl&--related deposits and is interpreted af fodg during mxdioe aftha Burtya suptarmeto NU#& A&a Cta- [4),la tbra Russian Northeast is the Chefsky-Argaw Raqw (CAR) belt of hvldro mamba &do deposits, and Ya@&cmp Rive belt of granitic-magmatism-relM-I$, Both bebare hosted in the lndi@M%y vsWpWc assemblage and are interpreted as forming m rlh+ Uyandina island are. (5) h tlrs Russian North- the Olny [UL) beb granitic-magmatism-related dcpoh and is hoaber4 in the Oloy kW an. (63 h thc thaPekalhaeym bl?, whigih contains basaltic Cu deposits, is hbsted io Late J d boeaaic W & ~ hkh eta m-~ tWdd& bctqm&& into the Pekul'ney subduction-zone tarplo; (7) In he same re- the Tamvabey-Muhits [ TW Wt, which emt$b padihm Cr deposits, is hosted in zod plukm. urd the Mahits (MA) && which CO~W hrrrdso d w s+&du deposits, are both interpreted s formimg m the Mahit&iy island atc. (8) Also in the region, thc S ~ r@VN) y belt, ~ ~ which contains Au-Ag epithemul vein deposits, L bmtd in the Svytby-N~ vd& batt wK& kin&xp&dgil the co-named island arc. (9) In the Ruaaira Nix&o~1t, Ah& aMt tht natbn Ch.tdb (hiibm, Butem ~P~ and Marshall (ESM), Kobuk CKB), Kuyul (KUY), South- Ahb (SWA), and Yubn-Kv& (MI) belt&, which rontain podiform
0 . - . k. Figwe 48: GeneraliZed mep dmajor Late Jurassic metallogenic belts and terranes for Russian Far East, &rn Jem ar~I ac+iesrd dfshe ateas. Rdfer to text for description of metallogenic belts. Adapted from Nokleberg and others (IW'i'b, 1mi). kdf~r to figura 2 for explahatlon- Cr ad rehddqaila, ad ~ S zoned P mafic-ultramafic PGE deposits, are hosted in mafic-ultramafic plutms w W intrudad bt~ tbahElfPlpa of verjw islaad arcs. These arcs include the Svyatoy-Nos, Kony-Murgal, Koyukuk, and Toga rurcr. (10) In So* AlaaLa, the Eapkm-Swthern Alaska (ESA) belt, which contains granitic-magmatism-related deposits, ishwted ki #IC I Gravitm-N~oth-Gudier &It which overlies the Wrangellia superterrane, and is interpreted as forming abg bha axial of the Gmvma an. In Soathsrtftcm Alaska, the Klukwan-Duke (KL) belt, which contains oned mafic-ultramrfic Ti-Cr-WE dPuposrrr, ia hwled m subductio~r~&, zoned mafic-ultramafic plutons which are associated with basal part of Gaavina isld erc an the WmgeUia superlprrme. (1 1) In East-Central Alaska and central Canadian Cordillera, the Fortymile (FIG) and C W (CS] bek, which arntab~ wrpwlmite-haled asbestos deposits, are hosted in ultramafic rock of the Seventymile s u zone and ~ Shde ~ MouPtlrin aectetiooary wedge krrane. These belts are interpreted as forming during regional metamorphism wlvch cmmred &ra &&Won and ov&m~ng of oceanic lithosphere of oceanic terranes onto the North American Cr816n Mhgin. (12) h.k Canadiar, Carclillara, Ihc C M (CB) ~ belt of Au quartz vein, the Francois Lake (FL) of porphyry Mo, a d tbc Rassle~d (u) bsk afAu-Ag p~&~~dd.li~ vtia woeits, are hosted in various island-arc and subduction-zone terranes. These metdIog&dc beb wc both mkqmbdas formmg h u g regional metamorphism and anatectic granitic plutonism associated with.obducti@n &the .S~-@e~~llia uc a d %soocirted subduction zone complexes onto the North American Craton Margin. And (13) ki the . . . ' sou&an Canadian Cardillem, the continuity of the Island Porphyry (IP) belt of granitic-magmatism-related depasib is btedin
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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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Page 17 and 18:
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
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Figure 10. Gerbikanskoe vdcanogenic
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from crystalline basement of craton
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Figure 13. Howards Pass sedknenWy e
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McLean Arm Porphyry Cu-Mo District
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[..'......I Surfia'al deposits (Hol
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Figwe 16. GeneraCied map of major M
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.- *.-* *. . - - ---- -A - EARLY MI
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Metallogenic Belt Formed During Col
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Page 68 and 69:
several tens of meters to 1,300 m l
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Goldfarb (197) who interprets that
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WTF and Red Mountain Kuroko Massive
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interpreted by and as part of a ext
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Mount Sicker Metallogenic Belt of K
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interpreted as vents. The deposit c
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Page 82 and 83:
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hosted in the Yarkhodon subterrane
Page 88 and 89: origin of the younger Triassic(?) B
Page 90 and 91: Origin of and Tectonic Controls for
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 98 and 99: FL - Finlayson Lakm FR-FmLake LI -
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 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
Page 148 and 149: Granite-porphm and wanits W e ~~ hl
Page 150 and 151: subordinate adularia, dolomite, cel
Page 152 and 153: shale, basalt, plagiorhyolite, silt
Page 154 and 155: ocks and serpentinite which occur a
Page 156 and 157: interpreted as forming in the Juras
Page 158 and 159: Fault / Figure 57. Bond Creek and O
Page 160 and 161: Klukwan-Duke Metallogenic Bett of M
Page 162 and 163: tonnes of ore mined between 1967 an
Page 164 and 165: Cariboo Metallogenic Belt of Au Qua
Page 166 and 167: Sheep Creek Au-Ag Polymetallic Vein
Page 168 and 169: ---. .% of the North American Conti
Page 170 and 171: - OwiapaasembC Cmhmmmand Cemmcl. an
Page 172 and 173: in the west-central part of the Rus
Page 174 and 175: for about 850 krn (ZalishshaL ad oh
Page 176 and 177: Stanovoy Metallogenic Belt of Grani
Page 178 and 179: Goryachev, 1995, 1998, 2003) consis
Page 180 and 181: Altinskoe, Aragochan, Dalnee, Dokhs
Page 182 and 183: comprises up to 70-80% in some ore
Page 184 and 185: The Au quartz vein deposits are int
Page 186 and 187: 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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Page 284 and 285:
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
Page 328 and 329:
References Cited Abbott, G., 1981,
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Society of America Abstracts with P
Page 332 and 333:
Sciences, North-Eastern lnterdiscip
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Burgoyne, A.A., 1986, geology and e
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Canadian Cordillera, Yukon-northeas
Page 338 and 339:
the Koryak Highlands: Transactions
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during 1984: U.S. Geological Survey
Page 342 and 343:
Northeast Scientific Intergrated Re
Page 344 and 345:
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,
Page 359 and 360:
Pollack, John, 1997, Summary report
Page 361 and 362:
1993: British Columbia Geological S
Page 363 and 364:
Schroeter, T.G., 1987, Golden Bear
Page 365 and 366:
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
Page 371 and 372:
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
Page 381 and 382:
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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