The Chuktukon alkaline carbonatite complex is a part of the Chadobets complex, situated in the southwestern part of the Siberian craton. It is composed principally of aillikite-damtjernite and carbonatite and a host of Nb and REE mineralisation. Zircons were collected from drillhole samples of the damtjernites and hydrothermally overprinted carbonatites. Zircon grains show oscillatory zoning and a significant signature of recrystallization in cathodoluminescence images. Oscillatory zoned zircons preserved primary signatures, whereas recrystallization processes were related to infiltration of carbonatite melt and late stage fluid. The recrystallization led to different changes in the zircon geochemistry and appearance of multiphase inclusions with mineral composition, which is common of carbonatites (alkali-rich carbonates, fluorcalciopyrochlore, fluorapatite, Ba-Sr-RЕЕ-Ca-carbonates, calcite, dolomite, phlogopite and others). Hf-isotope composition of oscillatory zoned and recrystallized zircons is similar and records the signature of their primary heterogeneous source, with ɛHf(t) varying from 6.3 to −0.6. U-Pb age of oscillatory zoned zircon from damtjernite shows that the rock was emplaced at 256.7 ± 1.1 Ma, indicating that the Chuktukon intrusion was coeval with the Permian-Triassic Siberian Traps (252–250 Ma) and extensive alkaline magmatism in the Siberian craton.

Chuktukon碱性碳酸盐复合物是Chadobets复合物的一部分，位于西伯利亚克拉通的西南部。它主要由硅铝石-丹辉石和碳酸盐岩以及大量的Nb和REE矿化组成。锆石是从白云母和热液叠印的碳酸盐岩的钻孔样品中收集的。锆石晶粒在阴极发光图像中显示出振荡分区和重结晶的显着特征。振荡带状锆石保留了主要特征，而重结晶过程与碳酸盐熔岩和后期流体的渗透有关。重结晶导致锆石地球化学的变化以及具有矿物成分的多相夹杂物的出现，这是碳酸盐岩（富含碱金属的碳酸盐，氟代焦烧绿石，氟磷灰石，Ba-Sr-RЕЕ-Ca-碳酸盐，方解石，白云石，金云母等）。振荡带状和重结晶锆石的Hf同位素组成相似，并记录了其主要异质源的特征，ɛHf（t）在6.3至-0.6之间变化。damtjernite的带状振荡锆石的U-Pb年龄表明该岩石位于256.7±1.1 Ma，表明Chuktukon侵入与二叠纪-三叠纪西伯利亚圈闭（252-250 Ma）和西伯利亚克拉通广泛的碱性岩浆作用同时存在。 。