The Early Ordovician Alkaline-Ultramafic Zhilandy Complex of Central Kazakhstan: Structure and Geochronology


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Аннотация

The first U–Pb dating of amphibole-bearing quartz monzodiorites from the alkaline-ultramafic Zhilandy Pluton in Central Kazakhstan gave an Early Ordovician age of 479 ± 3 Ma. The data obtained allow confident recognition of three stages of intraplate magmatism in the western part of the Central Asian Orogenic Belt: Late Neoproterozoic with intrusion of alkaline syenites of the Karsakpai Complex; Early Cambrian with emplacement of ultramafic–gabbro plutons of the Ulutau Complex; and late Cambrian–Early Ordovician with formation of the Zhilandy Pluton and the intrusions of the Krasnomai Complex.

Авторлар туралы

R. Antonyuk

LLP Tsentrgeolsemka

Email: degtkir@mail.ru
Қазақстан, Karaganda

A. Tretyakov

Geological Institute, Russian Academy of Sciences

Email: degtkir@mail.ru
Ресей, Moscow, 119017

K. Degtyarev

Geological Institute, Russian Academy of Sciences

Хат алмасуға жауапты Автор.
Email: degtkir@mail.ru
Ресей, Moscow, 119017

A. Kotov

Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences

Email: degtkir@mail.ru
Ресей, St. Petersburg, 199034

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