Age of the Early Precambrian (?) Intrusive Complexes of the Northern Bureya Continental Massif, Central Asian Fold Belt

The results of studies indicate that the age of the protoliths of garnet-bearing biotite–sericite–muscovite schists of the Inim Block is <991 Ma, and they are derived from rocks of the Neo-, Meso-, and Paleoproterozoic (as well as Archean) crust. This suggests that the Inim Block is exotic relatively to the Argun Superterrane due to the formation of the protolith of its metasedimentary rocks largely from erosion products of the Early Precambrian continental crust, the presence of which within the Argun Superterrane is not proven. It is not excluded that the Inim Block is a fragment of the Dzhugdzhur–Stanovoi Superterrane implanted in the structure of the Argun Superterrane as a result of Mesozoic tectonic events.

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Middle Triassic age of metarhyolite of the Bondikha Formation, Argun Continental Massif, Central Asian Fold Belt

Doklady Earth Sciences ◽

10.1134/s1028334x17030084 ◽

2017 ◽

Vol 473 (1) ◽

pp. 296-299

Author(s):

A. A. Sorokin ◽

Yu. N. Smirnova ◽

N. M. Kudryashov ◽

A. P. Sorokin

Keyword(s):

Middle Triassic ◽

Central Asian Fold Belt ◽

Fold Belt ◽

Massif Central ◽

Central Asian

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An Early Neoproterozoic gabbro–granite association in the Bureya Continental Massif (Central Asian fold belt): First geochemical and geochronological data

Doklady Earth Sciences ◽

10.1134/s1028334x16120230 ◽

2016 ◽

Vol 471 (2) ◽

pp. 1307-1311 ◽

Cited By ~ 8

Author(s):

A. A. Sorokin ◽

R. O. Ovchinnikov ◽

N. M. Kudryashov ◽

A. P. Sorokina

Keyword(s):

Central Asian Fold Belt ◽

Fold Belt ◽

Geochronological Data ◽

Massif Central ◽

Central Asian ◽

Early Neoproterozoic

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Granitoids of the Altakhta Сomplex, the Eastern Part of the Bureya Continental Massif, Central Asian Fold Belt: Age, Geochemical Features, and Geodynamic Interpretations

Russian Journal of Pacific Geology ◽

10.1134/s1819714021040059 ◽

2021 ◽

Vol 15 (4) ◽

pp. 325-344

Author(s):

V. A. Guryanov ◽

E. V. Nigai ◽

Yu. Yu. Yurchenko ◽

M. V. Arkhipov ◽

S. A. Amelin ◽

...

Keyword(s):

Central Asian Fold Belt ◽

Fold Belt ◽

Massif Central ◽

Central Asian

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Age of the Early Paleozoic granitoid magmatismin the central part of the Bureya continental massif, Central Asian Fold Belt

Geodynamics & Tectonophysics ◽

10.5800/gt-2020-11-1-0465 ◽

2020 ◽

Vol 11 (1) ◽

pp. 89-106

Author(s):

R. O. Ovchinnikov ◽

A. A. Sorokin ◽

N. M. Kudryashov ◽

V. P. Kovach ◽

J. V. Plotkina ◽

...

Keyword(s):

Late Ordovician ◽

Central Asian Fold Belt ◽

Geological History ◽

Early Paleozoic ◽

Fold Belt ◽

Massif Central ◽

Nd Isotope ◽

Central Asian ◽

Igneous Complexes ◽

Neoproterozoic Magmatism

The article presents new age data on the ‘key’ Early Paleozoic igneous complexes located in the central part of the Bureya continental massif of the Central Asian Fold Belt. Porphyroblastic quartz monzonites of the Kivili complex are dated to 453±2 Ma. The age of gneissic granites of the Sularin complex is ~481 Ma. The Sm-Nd isotope studies show that Late Ordovician quartz monzonites were formed mainly from crustal sources with Paleoproterozoic Nd model isotopic ages. Both ancient (Paleoproterozoic?) and younger sources were involved in the formation of Cambrian granites. Our data, as well as previously published materials, suggest several stages of the Early Paleozoic magmatism in the evolution of the Bureya continental massif: ~541, ~504–500, ~487, ~474 and ~453 Ma. Early Paleozoic magmatism developed under a similar scenario in the Jiamusi continental massif. In addition to the synchronism of Neoproterozoic magmatism within these continental massifs, this feature testifies to their common geological history.

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