Open AccessCommon neoproterozoic–early paleozoic evolution of ore-bearing sedimentary complexes in the southern Siberian craton
Author(s) -
A. E. Budyak,
S. Yu. Skuzovatov,
Yu. I. Tarasova,
KuoLung Wang,
N. A. Goryachev
Publication year - 2019
Publication title -
doklady akademii nauk. rossijskaâ akademiâ nauk
Language(s) - English
Resource type - Journals
ISSN - 0869-5652
DOI - 10.31857/s0869-56524843335-339
Subject(s) - geology , paleozoic , geochemistry , syncline , craton , hydrothermal circulation , stage (stratigraphy) , sedimentary rock , structural basin , metallogeny , paleontology , petrology , tectonics , sphalerite
A comparison of the lithological-geochemical parameters for the deposits of the Dalnetaiga series of the Bodaibo synclinorium (the Buzhuikhta and Khomolkho suites) and the Olokit structural-formation zone (the Itykit and Ondok suites), hosting polymetallic deposits (Kholodnin, Ioko-Rybach’e), along with the obtained geochronological LA-ICP-MS U–Pb age estimates of the Ondok suite (~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 backarc basin of the Olokit structure.