...I.V. Gordienko; D.V. Metelkin; L.I. Vetluzhskikh Abstract —The paper presents a new understanding of the geologic composition and geodynamic evolution of the Mongol–Okhotsk Fold Belt. It considers the issues related to recognition and substantiation of the Amur composite microcontinent (Amuria...

...V.V. Khomentovsky The Late Precambrian Uchur-Yudoma hypostratotype includes the Uchur-Maya plate (a depression in the southeast of the Siberian Platform), the Yudoma-Maya pericratonic trough, and the Okhotsk microcontinent. The sequence of stratigraphic units ranked groups and formations has surely...

... — fragments of Riphean troughs denuded in Baikalian: 7 — pericratonic, 8 — intracratonic; 9 — microcontinents overlapped by Neoproterozoic deposits: 1 — Barguzin, 2 — Kas; 10 — microcontinents denuded in Baikalian: 3 — Kan, 4 — Derba, 5 — Stanovoy, 6 — Okhotsk; 11 — regionalization indices...

... orogen; SVO, South Verkhoyansk orogen; NCO, Novosibirsk–Chukotka orogen; KOM, Kolyma–Omolon microcontinent; UYA, Uyandina–Yasachnaya arc; UMA, Uda–Murgal arc; OChA, Okhotsk–Chukotka arc; SOA, Svyatoi Nos-Oloi arc; SAS, South Anyui suture. Their age and location in the northern VKFA part indicate...

...–Okhotsk suture and the Bureya microcontinent. We tried to select highly reliable paleomagnetic directions (references are provided for each determination), but they were rather scarce. The paleopoles were converted into latitudes along the 126° E meridian according to ( Butler, 1992 ). The paleomagnetic...

... sliding along the boundary between the North Asian craton and the Amurian microcontinent. The Stanovoi volcanoplutonic belt differs significantly from other large volcanoplutonic belts in East Asia (Okhotsk–Chukchi, Great Khingan, Hingan–Okhotsk, etc.) in the occurrence of Cretaceous adakite volcanism...

...) The Late Cambrian-Ordovician subduction-collision events and orogenic processes in Central Asia could be related to plume activity which resulted in the opening of new oceans — Uralian and Mongol-Okhotsk — and in the accretion of the Gondwana-derived microcontinents to the Kazakhstan-Tuva-Mongolian island...

..., have been recognized within it: intracratonic depression (Uchur-Maya plate complicated by the Omnya uplift); Yudoma-Maya pericratonic trough, and the Okhotsk microcontinent. It is widely accepted that in the Late Precambrian the Okhotsk microcontinent was part of the Siberian craton. This hypothesis...

...Fig. 6. Palinspastic reconstruction for 180 Ma (A) and 140 Ma (B). The asterisk shows the location of the Skovorodino–Tommot 3-DV profile. Lambert azimuthal equal-area projection with the central meridian at 45° E is used. Legend of microcontinents (massifs): BM, Bureya; KM, Khankai; AM, Argun...

...) system of continental-margin spreading seas surrounded by rises in the Mongolia-Okhotsk ocean, (iii) transition zone with island arc complexes and reef limestones in epicontinental backarc shelf seas (especially, in shallow basins on the margin of the Argun and Central Mongolian microcontinents), (iv...