Abstract—The Kulumbe River area occupies a transitional position in the Siberian Traps province due to being located in the junction zone of the structures of the Norilsk region and the Tunguska syncline. The Kulumbe river valley combines the characteristic volcanic formations of both regions; however, the sequence of the formation of the intrusive complexes and their correlation with the volcanics are still unclear. The paper presents new paleomagnetic data on the intrusive bodies of the Kulumbe river valley. It is shown that intrusive magmatism in the region continued for a long time spanning at least one interval of the reversed polarity and one interval of normal polarity. Based on the comparison of virtual geomagnetic poles, the Siluriyskaya intrusion (Norilsk complex) containing sulfide mineralization can be correlated to the Morongovskaya-Mokulaevskaya (Morongovsky-Mokulaevsky) formations and close to the formation time of the ore-bearing intrusions of the Norilsk region. The formation of the Kulyumbinskaya intrusion (Kureyskii (Kureysky) complex) and some other bodies of the Kureyskii and Kuzmovskii (Kuzmovsky) complexes is most likely to correspond to the Morongovskaya-Mokulaevskaya (Morongovsky-Mokulaevsky) time and also is close to the formation time of the ore-bearing intrusions. The reversely magnetized intrusive bodies in the Kulumbe River valley were formed after the completion of the main volcanic phase and are approximately synchronous with the Daldykan complex in the Norilsk region. The formation of the Katangskii (Katangsky) intrusions, just as in the central part of the Tunguska syncline, spans a long period of time and cannot be correlated to any particular volcanic formation. Finally, based on the detailed analysis of the paleomagnetic data we hypothesize that most of the intrusions of the Kulumbe River valley except for part of the reversely magnetized bodies have been formed before the end of the main regional deformations which roughly coincides with the termination of trap magmatism.

摘要——库伦贝河地区位于诺里尔斯克地区构造与通古斯向斜交界带，在西伯利亚圈闭省具有过渡地位。库伦贝河谷结合了这两个地区特有的火山构造；然而，侵入杂岩的形成顺序及其与火山岩的相关性尚不清楚。该论文提供了关于库伦贝河谷侵入体的新古地磁数据。结果表明，该地区的侵入岩浆活动持续了很长时间，跨越了至少一个反极性区间和一个正常极性区间。基于虚拟地磁极的比较，含有硫化物矿化的 Siluriyskaya 侵入体（Norilsk 复合体）可以与 Morongovskaya-Mokulaevskaya（Morongovsky-Mokulaevsky）地层相关联，并且接近于诺里尔斯克地区含矿侵入体的形成时间。Kulyumbinskaya侵入体（Kureyskii（Kureysky）杂岩体）和其他一些Kureyskii和Kuzmovskii（Kuzmovsky）杂岩体的形成最有可能对应于Morongovskaya-Mokulaevskaya（Morongovsky-Mokulaevsky）时间，也接近形成时间含矿侵入体。库伦贝河流域的反磁化侵入体是在主要火山阶段完成后形成的，与诺里尔斯克地区的达尔迪坎杂岩体大致同步。Katangskii (Katangsky) 侵入体的形成，就像在通古斯向斜的中部一样，它跨越了很长一段时间，无法与任何特定的火山形成联系起来。最后，根据对古地磁资料的详细分析，我们假设库伦贝河流域的大部分侵入体除了部分反磁化体外，大部分形成于主要区域变形结束前，与圈闭终止大致重合。岩浆作用。