Chemical composition, isotopic U–Pb age, and source of zircon from polymineralic ichet’yu occurrence, Mobile Timan


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Аннотация

This study focuses on the morphological features, color cathodoluminescence, chemical composition, age, and source of zircons from the Ichet’yu occurrence. The isotopic U–Pb age of Paleo–Mezoproterozoic zircon grains varies within an interval of ~700 Ma from 2247 to 1478 Ma. The average roundness and well-preserved integrity of zircon grains allow us to suggest their proximal source. The available data show that the basement of the Middle Timan, composed of continental Paleo–Mezoproterozoic igneous rocks, is the most probable source of zircon in the Ichet’yu occurrence. These rocks are apparently a continuation of the Archean–Proterozoic Arkhangel’sk Mobile Belt.

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Авторлар туралы

A. Makeev

Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry

Хат алмасуға жауапты Автор.
Email: abmakeev@igem.ru
Ресей, Staromonetnyi per. 35, Moscow, 119017

T. Bayanova

Geological Institute, Kola Science Center

Email: abmakeev@igem.ru
Ресей, ul. Fersmana 14, Apatity, 184209

S. Borisovsky

Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry

Email: abmakeev@igem.ru
Ресей, Staromonetnyi per. 35, Moscow, 119017

O. Zhilicheva

Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry

Email: abmakeev@igem.ru
Ресей, Staromonetnyi per. 35, Moscow, 119017

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© Pleiades Publishing, Ltd., 2016