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

::-It
-
rnite
uence (D-
5 Strike and dip
1 Contact
/ Fault
0 1 2 KM
I &. Rubvy- @-) Kigwhi: Cu-wn deposit and related deposits, Cosmos Hills ~MBR. Autk WI~C belt,
NortherwAlp&, &$i~~fpzkgIc mlp. Exeept where noted, all faults are downthrown to the (b83t. A&pbdbM HkzWin (%*
arwl £khbjt QW7). -
1
I
Dewmimad h&kidppk M a r segwe. The main horizon of sulfides is hosted in mainly graphiti~pblik~ist &
@w&E potph~ darid bum tuhrnarint ash-flow tuff.
'&e k&o sulfide dqmlto in the Arctic metallogenic belt are hosted in, ar occctt adjamt LO&XXI&.~M @%+&
sad hkk mdW& Z O C d ~ aiWtciPtod mrbonate, pelitic, and graphitic metasedimenlary mks of lfia D~v& ti&
(Hi- d others, 1982, 1986; Newberry and others, 1993 which fompl ofthe hf&Wi&
&dd~qmt
disl ;be& ar C.C&EOO~ malamolphosed continental margin terrane of the seuthwn bo& RlO@ @dWB3 d
-, 19% rrnd orb-, 1%, 1997~). On the basis of local bimodal volcanlc rods, a baeE-m I$I B%- k
mid & me W O X h ~ be swihrn Brooks Range belt for the origin of kuroko massive s d 6 k
19&; N W @md ~ ~tkri, 1997; Schmldt, 1986; Moore and others, 1994; Gol&b, 1997).
fm
d-htk with tha brosdly coeval Eastern Alaska Range belt of kuroko massive sulfide dm&& &bm#,
Whi& hi &merged continental-margin arc environment (Lange ad atbers, 1
m@
kit o f h h @toid
~ u
Phfb &&,kg, 1*,*-,
he Devonian submarine and associated volcanic rocks of the ewthera
wkk occur along the southern flank of the Brooks Rangq ere pPrt of
~ rn wbroh extended w along the ~ margin of the ~ North American - Codha ~ @uhh d 0th-
1W; Nokleberg and others, 2000). The Arctic metallogenic bell ia W
&E
lB1;
arc in which formed the Brooks Rawc mdallogak
m~thwdqmsits, dwbdbhw (fig. 17). With th~s interpretation, the SEDEX depooi@ formed 1Me~ hi hLteck3
M*~l$&h dJk'@P~~ylvbni&b, a d In a distinctly different tectonic env~ronment. This interpretdm dkffbi? &
I h b --BEG dth m c~ntmental-margin
t:' Vd