Open AccessSources and provenances for the Late Cenozoic sands of the Olhon Island (Baikal rift zone)
Author(s) -
А. Б. Котов,
Т. М. Сковитина,
В. П. Ковач,
E. V. Sklyarov,
T. V. Donskaya,
Д. В. Лопатин,
Yu. V. Plotkina,
Е. В. Толмачева,
B. M. Gorokhovskii,
I. N. Buchnev
Publication year - 2019
Publication title -
doklady akademii nauk. rossijskaâ akademiâ nauk
Language(s) - English
Resource type - Journals
ISSN - 0869-5652
DOI - 10.31857/s0869-56524843325-328
Subject(s) - batholith , geology , cenozoic , permian , rift , paleozoic , metamorphic rock , paleontology , geochemistry , rift zone , tectonics , structural basin
U–Th–Pb geochronological (LA-ICP-MS) stady the detritе zircons from the Late Cainozoic sands of the Olkhon island (the Baikal rift zone) were performed. It is shown that the early Paleozoic magmatic and metamorphic complexes of the Olkhon terrein of the Central Asian Mobile Belt and the Late Carbonian – the Early Permian granitoids of the Angaro-Vitimsky batholith were the main their sources. Transfer of granitoids of the Angaro- Vitimsky batholith were the main their sources. Transfer of the last was carried out on distance not less than 100 km. The assumption is made that it happened by powerful air transfer, and including on ice of Baikal Lake.