Yu. V. Danilova, I. S. Sharygin, E. A. Gladkochub, E. I. Nikolenko, N. V. Bryansky, S. Yu. Skuzovatov, A. S. Gladkov, A. V. Ivanov, D. A. Koshkarev, F. A. Letnikov
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Age of Alkaline Ultramafic Explosion Pipes of the Chapinskii Complex (Yenisei Ridge)
Abstract—
The age of formation of the explosion pipes of the Chapinskii complex in the Chingasan magmatic belt in the northern part of the Yenisei Ridge is determined. U–Pb dating of zircon megacrysts from alkaline ultramafic rocks has established the values of 657.7 ± 13.4 and 647.6 ± 9.7 Ma for the Natalyinskaya pipe and Pipe no. 3, respectively. The intrusion of alkaline ultramafic explosion pipes of the Chapinskii complex corresponds to the time of manifestation of alkaline ultramafic magmatism along the southern and southwestern margin of the Siberian Craton.
期刊介绍：
Doklady Earth Sciences is a journal that publishes new research in Earth science of great significance. Initially the journal was a forum of the Russian Academy of Science and published only best contributions from Russia. Now the journal welcomes submissions from any country in the English or Russian language. Every manuscript must be recommended by Russian or foreign members of the Russian Academy of Sciences.
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