18.04.2013 Views

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

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

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

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

AR - Ariadny<br />

-- -- ---- --<br />

- - - -. - - - - - -<br />

- - - -*<br />

- . . . . - . ><br />

. -- . - - ...<br />

------.. ..-- -*-<br />

-..-- - ---<br />

. -- ---- - -. . . .-<br />

- -<br />

TM - TJkeelno Mountoim<br />

ESA - Eostem-Sou<strong>the</strong>m TO - foodoggrns<br />

Medro RL - R~sdond<br />

FM - F- ST - W<br />

IP - l dad Paphm SUN - S ~ - N O C<br />

KB-Kobuk SWA - Swlhweslem Alosko<br />

KL - K l - m YR . . . - Vukm . -. . -. . . R . . -. i<br />

KUY - Kuyul<br />

YS<br />

MA -<br />

- Yamzhaye River<br />

163 to 144 Ma<br />

Figure 50. Late Jurassic (Oxfordian through Kimmeridigian - 163 to 144 Ma) stage <strong>of</strong> metallogenic-tectonic model. Refer to text for<br />

explanation <strong>of</strong> metallogenic-tectonic events, to tables 3 <strong>and</strong> 4 for descriptions metallogenic belts <strong>and</strong> significant deposits, <strong>and</strong> to<br />

figure 18 for explanation <strong>of</strong> abbreviations, symbols, <strong>and</strong> patterns. Adapted from Nokleberg <strong>and</strong> o<strong>the</strong>rs (1997b, 1998, 2000).<br />

<strong>the</strong> Ancestral Pacific Ocean plate to continue forming <strong>the</strong> Samarka (SMA), Khabarovsk (KB), <strong>and</strong> Badzhal (BD) terranes.<br />

Forming along <strong>the</strong> transform continental margin was <strong>the</strong> Ariadny (AR) belt <strong>of</strong> zoned mafic-ultramafic Ti deposits which is hosted<br />

in zoned mafic-ultramafic plutons intruding <strong>the</strong> Sarnarka subduction-zone terrane.<br />

(3) In <strong>the</strong> same region, <strong>the</strong> Bureya (BU) superterrane accreted against <strong>the</strong> Ulban accretionary-wedge terrane (UL) along<br />

<strong>the</strong> Mongol-Okhotsk suture (MO) <strong>the</strong>reby closing <strong>the</strong> Mongol-Okhotsk Ocean. Forming during accretion was <strong>the</strong> Stanovoy (ST)<br />

metallogenic belt which contains anatectic, granitic-magmatism-related deposits.<br />

(4) The Uda continental-margin arc (Uda volcanic-plutonic belt, ud, <strong>and</strong> Uda-Zeya sedimentary basin, uz) continued to<br />

form. Associated with <strong>the</strong> arc was subduction <strong>and</strong> sinistral transpression <strong>of</strong> part <strong>of</strong> <strong>the</strong> Mongol-Okhotsk Ocean plate to form <strong>the</strong><br />

Turkuringra-Dzhagdinsk (TD), <strong>and</strong> Ulban (UL) terranes. Subduction was associated with sinistral transpression along <strong>the</strong><br />

Mongol-Okhotsk suture (MO).<br />

(5) The extensive Kony-Murgal continental-margin <strong>and</strong> isl<strong>and</strong>-arc terrane (KM) continued to form as an extension <strong>of</strong> <strong>the</strong><br />

Uda continental-margin arc (ud). Associated with <strong>the</strong> arc was continued subduction <strong>of</strong> part <strong>of</strong> <strong>the</strong> ancestral Pacific Ocean plate to<br />

form <strong>the</strong> Talovskiy (TL) <strong>and</strong> Penzhina-Anadyr (PA) terranes. The Kony-Murgal isl<strong>and</strong> arc overlapped <strong>the</strong> Okhotsk (OK) <strong>and</strong><br />

Avekova (PJO cratonal terranes which were previously rifted from <strong>the</strong> North Asian Craton (NSC), <strong>and</strong> <strong>the</strong> Viliga (VL) passive

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!