The study presents a complex characteristic of zircon from the Verkhneurmiysky intrusive series with Li-F granites. A wide range of morphological and chemical properties of zircon allowed us to obtain new information on the formation and alteration of zircon from biotite and zinnwaldite granitoids and to determine its features, which contribute to the correct definition of Li-F granites formed directly before the tin mineralization. The reviled trends of zircon morphology and composition evolution in the Verkhneurmiysky granites series are: the high-temperature morphotypes are followed by low-temperature ones with more complicated internal structure with secondary alteration zones, mineral inclusions, pores, and cracks; the increasing concentration of volatile (H₂O, F), large ion lithophile (Cs, Sr), high field strength (Hf, Nb) and rare-earth elements with decreasing crystallization temperatures and the determining role of the fluid phase (predominantly, F) in the trace element accumulation. The composition of zircon cores in biotite and zinnwaldite granites is very similar. However, the zircon rims from zinnwaldite granites are much more enriched in trace elements compared to those from biotite granites. The first study of zircon from the Verkhneurmiysky granitoids provides new data on the formation and alteration conditions of granitoids, including zinnwaldite ones.

中文翻译：

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Verkhneurmiysky地块（阿穆尔州）花岗岩类锆石的复杂特征

该研究提出了Verkhneurmiysky含Li-F花岗岩的侵入系列锆石的复杂特征。锆石的广泛形态和化学特性使我们能够获得有关黑云母和斜锌矿花岗岩中锆石的形成和蚀变的新信息，并确定其特征，这有助于正确地定义在锡之前形成的Li-F花岗岩。矿化。Verkhneurmiysky花岗岩系列中锆石形态和成分演化的趋势是：高温形态型随后是内部形态更复杂的低温形态型，具有次级蚀变区，矿物包裹体，孔隙和裂缝；挥发物（H ₂O，F），较大的离子亲石剂（Cs，Sr），高场强（Hf，Nb）和稀土元素，具有降低的结晶温度以及液相在痕量元素积累中的决定性作用。黑云母和锆石花岗岩中锆石岩心的组成非常相似。然而，与来自黑云母花岗岩的锆石边缘相比，来自zinnwaldite花岗岩的锆石边缘的微量元素含量更高。Verkhneurmiysky花岗岩中锆石的第一个研究提供了有关花岗岩（包括zinnwaldite花岗岩）的形成和蚀变条件的新数据。