In recent years, despite significant progress in the development of new methods for the synthesis of diamond crystals and in their post-growth treatment, many questions remain unclear about the conditions for the formation and degradation of aggregate impurity nitrogen forms. Meanwhile, they are very important for understanding (evaluating) the origin, age, and post-growth conditions of natural diamonds. In the present work, an attempt was made to analyze the causes of the formation of high concentrations of N3V centers in natural IaB-type diamonds from the Kholomolokh placer (the Northeast Siberian craton). The possibility of decay of B centers during the plastic deformation of diamonds is analyzed and experiments on the high-temperature annealing of diamonds containing B centers are reported. The formation of N3V centers during the destruction of the B centers at high-pressure annealing of crystals has been established by experiment. It is assumed that, in the post-growth period, diamond crystals were exposed to tectono-thermal stages of raising the superplumes of the Earth's crust of the Siberian craton.

中文翻译：

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东北克拉通 Kholomolokh 砂矿金刚石 N3V 中心的形成特征

近年来，尽管在开发金刚石晶体合成新方法及其生长后处理方面取得了重大进展，但关于聚集杂质氮形式的形成和降解条件仍有许多问题尚不清楚。同时，它们对于了解（评估）天然钻石的起源、年龄和生长后条件非常重要。在目前的工作中，试图分析在来自 Kholomolokh 砂矿（东北西伯利亚克拉通）的天然 IaB 型钻石中形成高浓度 N3V 中心的原因。分析了金刚石塑性变形过程中B中心衰变的可能性，报道了含B中心金刚石的高温退火实验。通过实验确定了在晶体的高压退火中 B 中心破坏过程中 N3V 中心的形成。据推测，在后生长时期，金刚石晶体暴露于抬升西伯利亚克拉通地壳超羽的构造热阶段。