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通过对库鲁克塔格富铝片麻岩岩相学、变质反应结构研究,推断其经历3个阶段变质演化,具顺时针P-T轨迹。LA-ICP-MS锆石U-Pb年代学研究表明,其经历了(1 868±44)Ma的高级变质作用。该结论为古元古代末期塔里木地块发生与哥伦比亚超大陆聚合有关的碰撞造山事件提供了有力证据。
Based on the study of petrographic and metamorphic reaction of Kuluke Tagu rich-gneiss, it is deduced that it experienced 3 stages of metamorphism evolution with clockwise P-T trajectory. LA-ICP-MS zircon U-Pb geochronology studies have shown that it experienced a high metamorphism of (1868 ± 44) Ma. This conclusion provides strong evidence for the occurrence of collisional orogeny related to the supercontinent polymerisation in Colombia during the Late Paleoproterozoic Tarim Plot.