Abstract We report stable Zr isotope compositions of four common natural zircon grains: Penglai, 91500, GJ-1 and Mud Tank, and 22 whole rocks reference materials which include fifteen magmatic rocks, one metamorphic rock, six sediments or sedimentary rocks. In addition, the isotopic calibration of the three Zr standard solutions used in different publications (IPGP-Zr, SRM3169, NIST) has been determined. The data are reported as δ94/90ZrIPGP-Zr, the permille deviation of the 94Zr/90Zr ratio relative to the IPGP-Zr standard solution. The isotopic offsets among the three Zr standard solutions are small (less than 0.033 ± 0.033‰). The isotopic composition of the zircons agrees well with previous in-situ measurements, validating the in-situ measurements. On the other hand, all the samples analyzed in this study show a large range of Zr isotope compositions of 0.602‰. This confirms the fairly large natural Zr isotopic variations. The general variation of δ94/90ZrIPGP-Zr with magmatic evolution of the various igneous samples is in agreement with previous studies, with the most magmatically evolved samples being the isotopically heavier. The two magmatic zircons are isotopically lighter compared to the magmatic rocks, which is in agreement with the enrichment of heavy isotope in the evolved samples. This is ultimately controlled by the crystallization of isotopically light zircons.

中文翻译：

---

22种地质标准物质、4种锆石和3种标准溶液的锆稳定同位素组成

摘要 我们报道了蓬莱、91500、GJ-1 和泥槽四种常见天然锆石颗粒的稳定 Zr 同位素组成，以及 22 种全岩参考材料，其中包括 15 种岩浆岩、1 种变质岩、6 种沉积物或沉积岩。此外，还确定了不同出版物（IPGP-Zr、SRM3169、NIST）中使用的三种 Zr 标准溶液的同位素校准。数据报告为 δ94/90ZrIPGP-Zr，即 94Zr/90Zr 比率相对于 IPGP-Zr 标准溶液的 Permille 偏差。三种 Zr 标准溶液的同位素偏移量很小（小于 0.033 ± 0.033‰）。锆石的同位素组成与之前的原位测量结果非常吻合，验证了原位测量结果。另一方面，本研究中分析的所有样品均显示出大范围的 Zr 同位素组成，为 0.602‰。这证实了相当大的天然 Zr 同位素变化。δ94/90ZrIPGP-Zr 随各种火成岩样品岩浆演化的一般变化与先前的研究一致，岩浆演化最多的样品是同位素较重的样品。与岩浆岩相比，这两个岩浆锆石同位素较轻，这与演化样品中重同位素的富集是一致的。这最终由同位素轻锆石的结晶控制。岩浆演化最多的样品是同位素较重的。与岩浆岩相比，这两个岩浆锆石同位素较轻，这与演化样品中重同位素的富集是一致的。这最终由同位素轻锆石的结晶控制。岩浆演化最多的样品是同位素较重的。与岩浆岩相比，这两个岩浆锆石同位素较轻，这与演化样品中重同位素的富集是一致的。这最终由同位素轻锆石的结晶控制。