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

Flgrwo W. Lab Cretaceous and early Tertiary (Campanian through early Eocene - 84 to 52 Ma.) @age oC rn-aC
indeL Re& to bxt far explanation of metallogenic-tectonic events, to tables 3 and 4 for descmons rn- b?kS emd
dgr!Mcmt dspaab, and to figure 18 for explanation of abbreviations, symbols, and patterns. Adapted fm Wkb@ and oRops
('L997b,l99& ~ 00).
(1) Fato lhe s& dhb 50' to 60' paleolatitude, the extensive Olyutorka island aro contimed to fbm* Parts PE
a art y~smed m he N&mum (NE), Kronotskiy (KRO), and Olyutorka-Kamchatka (OKA), 4adi h d y (IQ. dmdttmneq.
hU.m&g to fmm m fie Olyutorka arc were the Koryak Highlands metallogenic bell, which contaim izdd d~
d- d Cu d v e & deposits, the Vatyn (VT) metallogenic belt, which c o d vr>lc~&dc &ad Fa
b b A h fMmng m Olyuhka arc was the Iruneiskiy (1R) metallogenic belt of porphyry Mo d-Q. wifh &tv
arc wm subductiun af pi KF he djment oceanic plate to form the Vetlovskiy (VT) terrane. TbiP arc ad C-.-W
;wae *ted ~orbmd b w d the Okhotsk-Chukotka continental-margin arc.
(2) Fartb wesl, be Ea~t Skhote-Alin continental-margin arc (es) and related deposik cambaed =tidry. h~ bs
part of &e erc ww the Wat $akhh (WSA) turbidite-basin terrane. Continuing to form in ha Easl-SiLbota &kerb tb m,
Lpwtr Amr, Ludhdky, Sogwka, and Taukha metallogenic belts. Associated with the arc was oblique sukdbtth dprt of
Ihe PdkOEcan plats (PAC) to fbrm the Hikada (HI), Aniva (ANV), and Nabilsky (NAB) terranes.
(3) The OkborsL-Wh wntinental-margin arc continued activity. Parts afthe arc a~upteracvd ia &b -k-
Cb- vdcanic-phkuic bdl (w) and related Penzhina (forearc) sedimentary basin 0. Associakd wil bt rrtc W a
srbdwhcm dput of tbt PUG&G Qcem plate (PAC) to form the West Karnchatka (WK) md h y (EK) tax&k%l. Local pWW
m tba~~-€h.k&a vddc-plutonic belt intruded under extension, probably a khemdt ofroIlbrck a(&b *wbduCh
Eat Crelacaws (ArPato swl Wright, 1997). Also in the same region, the Okbolsk-ChuL& d h t -Ab
&b
cunt.i~x~u~@ arcs were af%t in a sinistral sense along the Mongol-Okhotsk fault system ( Ma. Coal- in tb+ Okbkk-
Chddia arc was the Eastan Aria metallogenic belt of granitic-magmatism-related depsib which ~ ( ~ l h kI c cl w k m y d
z& Cwdmmg M rruw wsre the Anuyi-Beringovsky (AB), Chaun (CN), Chukotka (CFI'), K o r l w
OkhmMk (OH), OmrukJion f~lbl), Verkhoyansk-Indigirka (VY), Verkhne-Kolyma (VK), Verkhne-Yudb-CVY)
crc~thulag t6 h in the Qkhatsk-Chukotka volcanic-plutonic belt and peripherally related to the Eastem Air in ha hOBim FY k t tk Arfycha-Taryn (AT), and Vostochno-Verkhoyansk (VV) metallogenic W. F
c k d h ~
-.
bdr;
m h mb
~
~bolak-Chblka vhnkgbutnajd: belt in western Alaska, and peripherally related to the Eastern Ada rneubqjmlbsk sea
& H6hw~krn Ko-pkuk bh&llogenic belt (NWK) which contains felsic plutonic U deposits, the WardPrPhsule