RUSSIAN JOURNAL OF EARTH SCIENCES VOL. 10, ES4002, doi:10.2205/2007ES000224, 2008

Figure 13. Geological section (by 50oN) across Sikhote Alin-Sakhalin region (section line is
shown in Figure 12). 1 - blocks of assumed continental crust that underwent repeated metamorphism;
2-4 - Sikhote Alin-Sakhalin Middle Cretaceous orogenic belt: 2 - tectonically combined Paleozoic,
Triassic, Jurassic, and Neocomian sea-margin and island-arc formations that underwent
repeated orogeny and metamorphism (zones B - Badzhalskaya, S - Samarkinskaya), 3 - the same with
prevailing Jurassic-Neocomian oceanic formations, 4 - Berriasian-Valanginian
turbidite and olistostrome; 5-9 - Late Hauterivian-Early Cenomanian formations of the final
stage of Middle Cretaceous orogenesis (collision-transform settings): 5-6 - Late Hauterivian-Middle
Albian terrigenous formations of grabens and pull-apart basins: 5 - olistostrome and
turbidite, 6 - turbidite for the major part arkose (Zhuravlevskii basin), 7 - Albian-Eartly
Cenomanian terrigenous formations, 8 - Late Hauterivian-Early Cenomanian flyschoid
formations, 9 - Barremian-Albian granitoid; 10 - assumed Late Cretaceous oceanic crust;
11 - metamorphic rocks mainly from Jurassic-Cretaceous ophiolite; 12-13 - East Sakhalin
Middle Eocene orogenic belt: 12 - Campanian-Paleocene rocks of the first layer of the
oceanic plate, 13 - assumed Cretaceous-Paleogene hyperbasite of the oceanic crust;
14-16 - Paleogene-Quaternary shift formations (settings of transform boundary of the continental and
oceanic plates): 14-15 - terrigenous sediments in grabens and pull-apart basins:
14 - Late Eocene-Early Miocene, 15 - Late Miocene-Quaternary, 16 - Eocene-Quaternary basalt
of alkali and locally calc-alkali series and delivery channels; 17 - thrusts in nappe structures
of the Paleozoic and Middle Cretaceous, unrugged; 18 - Albian and Early Senomanian
thrusts; 19 - Cretaceous-Paleogenic thrusts of accretion prisms of above-subduction belts:
Sikhote Alin (a), East-Sakhalin-Hokkaido (b); 20 - frontal nappe thrust of East Sakhalin
orogene belt (a), other Cenozoic thrusts (b); 21 - Middle Cretaceous shifts (a) and Cenozoic (b)
(cross in a circle in the profile denotes movement from the observer; point denotes movement
to the observer); 22 - stratigraphic and intrusive boundary. See the rest of designations in Figure 12.
Additional letter designations: SA - Sikhote Alin above-subduction continental-margin
volcanic-plutonic belt (Senomanian-Paleocene), K and MK are fragments (Kemskiy and Moneron-Kabato
respectively) of Early Cretaceous island arc, ES is East Sakhalin Middle Eocene orogenic belt.

Citation: Rodnikov, A. G., N. A. Sergeyeva, L. P. Zabarinskaya, N. I. Filatova, V. B. Piip, and V. A. Rashidov (2008), The deep structure of active continental margins of the Far East (Russia), Russ. J. Earth Sci., 10, ES4002, doi:10.2205/2007ES000224.
Copyright 2008 by the Russian Journal of Earth Sciences
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