COMPARISON OF THE I AND IV DIAMOND TYPES (ACCORDING TO THE CLASSIFICATION OF Y.L. ORLOV) FROM THE SNAP LAKE KIMBERLITES (SLAVE CRATON, CANADA)

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The article is devoted to the study of diamonds of the I and IV varieties (according to the classification of Y.L. Orlov) from Snap Lake kimberlites. Based on the study of the morphology, the impurity defects of nitrogen and the internal structure of these diamonds, it was found that the uncoated crystals and the cores of coated diamonds were formed under similar conditions. It is assumed that the coats were formed on a significant part of the formed diamonds under mantle conditions, and their etching occurred at the hypogenic stage of the development of the kimberlite body.

作者简介

O. Ivanova

Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences; Novosibirsk State University

编辑信件的主要联系方式.
Email: ivanova@igm.nsc.ru
Russian, Novosibirsk; Russian, Novosibirsk

N. Pokhilenko

Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences; Novosibirsk State University

Email: ivanova@igm.nsc.ru
Russian, Novosibirsk; Russian, Novosibirsk

V. Afanasiev

Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences

Email: ivanova@igm.nsc.ru
Russian, Novosibirsk

D. Zedgenizov

A.N. Zavaritsky Institute of Geology and Geochemistry, Urals Branch of the Russian Academy of Sciences

Email: ivanova@igm.nsc.ru
Russian, Yekaterinburg

E. Barabash

Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences

Email: ivanova@igm.nsc.ru
Russian, Novosibirsk

参考

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版权所有 © О.А. Иванова, Н.П. Похиленко, В.П. Афанасьев, Д.А. Зедгенизов, Е.О. Барабаш, 2023