Zircon Hf Isotopes and Geochemistry of the Early Paleoproterozoic High-Sr Low-Y Quartz-Diorite in the Quanji Massif, NW China： Crustal Growth and Tectonic Implications-中国期刊网

摘要在Quanji山岳的变形早Paleoproterozoicgranitoids，西北的中国为在TarimCraton和诺思中国Craton之间的关系提供限制。在granitoids底盘之中，Mohe石英闪长岩的岩石典型地显示出adakiticgeochemical特征，与中等K2O/Na2O比率(0.561.17)和高Sr(519619ppm)低Y(9.3720.40ppm)和Yb(0.971.77ppm)集中。岩石有在+2.4和+4.4和2.432.59Ga的弄空的披风Nd模型年龄之间的Nd(t)价值。magmatic锆石有积极Hf(t)价值从+0.40到+7.60和2.432.70Ga的弄空的披风Hf模型年龄，与在2.54和2.65Ga的主要山峰。geochemical和Nd-Hf同位素的特征显示Mohequartz-dioritic岩石可能被高压的变形少年的部分融化形成在在早Paleoproterozoic的post-orogenicextensional政体的外壳的岩石。它建议重要外壳的生长在2.4和2.52.7Ga发生在Quanji山岳和TarimCraton。Quanji山岳和TarimCraton可能在Neoarchean与北方中国Craton分享类似的外壳的进化历史。

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Zircon Hf Isotopes and Geochemistry of the Early Paleoproterozoic High-Sr Low-Y Quartz-Diorite in the Quanji Massif, NW China： Crustal Growth and Tectonic Implications

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Zircon Hf Isotopes and Geochemistry of the Early Paleoproterozoic High-Sr Low-Y Quartz-Diorite in the Quanji Massif, NW China： Crustal Growth and Tectonic Implications

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