Common Neoproterozoic–Early Paleozoic Evolution of Ore-Bearing Sedimentary Complexes in the Southern Siberian Craton

A comparison of the lithological–geochemical parameters for the deposits of the Dalnetaiga series of the Bodaibo synclinorium (the Buzhuikhta and Khomolkho formations) and the Olokit structural-formational zone (the Itykit and Ondok formations), hosting polymetallic deposits (Kholodnin, Ioko-Rybach’...

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Bibliographic Details
Published in:Doklady earth sciences 2019, Vol.484 (1), p.92-96
Main Authors: Budyak, A. E., Skuzovatov, S. Yu, Tarasova, Yu. I., Wang, Kuo-Lung, Goryachev, N. A.
Format: Article
Language:English
Subjects:
Cratons
Earth and Environmental Science
Earth Sciences
Evolution
Geochemistry
Geochronology
Gold
Hydrothermal activity
Lithology
Paleozoic
Radiometric dating
Stratigraphy
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Summary:A comparison of the lithological–geochemical parameters for the deposits of the Dalnetaiga series of the Bodaibo synclinorium (the Buzhuikhta and Khomolkho formations) and the Olokit structural-formational zone (the Itykit and Ondok formations), hosting polymetallic deposits (Kholodnin, Ioko-Rybach’e), along with the obtained geochronological LA-ICP-MS U–Pb age estimates of the Ondok Formation (~600 Ma), indicates their similar stratigraphic position in the Neoproterozoic in Southern Siberia. At the first stage of formation of polymetallic and gold-ore objects, the siderochalcophylic trend is considered to have appeared synchronously in the two structural zones, which could have been caused by the hydrothermal activity in the back-arc basin of the Olokit structure.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X19010227