2014-2015年北塔里木克拉通库鲁克塔格地块变沉积岩地球化学数据
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数据在广州地球化学研究所和香港大学地球科学系使用JXA-8100电子探针、Nu PlasmaHR 多接收电感耦合等离子质谱仪Rigaku ZSX100e X射线荧光光谱仪 (XRF)和 Perkin-Elmer Sciex ELAN 6000电感耦合等离子质谱仪获得。变沉积岩全岩地球化学特征指示库鲁克塔格地块沉积于活动大陆边缘环境,碎屑锆石U-Pb定年结果显示托格群,上兴地塔格群和下兴地塔格群的最大沉积年龄分别在1.63, 1.94 and 1.77 Ga 。碎屑锆石Hf同位素指示塔里木克拉通分别在晚古太古代,早新太古代和早古元古代经历了三次地壳生长事件。
All data were acquired at the Guangzhou Institute of Geochemistry and Department of Earth Sciences, The University of Hong Kong using a JXA-8100 Electron Probe Microanalyzer, a Nu PlasmaHR Multi-collector Inductively Coupled Plasma Mass Spectrometer, a Rigaku ZSX100e X-ray Fluorescence Spectrometer (XRF), and a Perkin-Elmer Sciex ELAN 6000 Inductively Coupled Plasma Mass Spectrometer. Whole-rock geochemical characteristics of the metasedimentary rocks indicate that the Kuruktag Block was deposited in an active continental margin setting. Detrital zircon U-Pb dating results show that the maximum depositional ages of the Tuoge Group, Shangxingditage Group, and Xiaxingditage Group are 1.63 Ga, 1.94 Ga, and 1.77 Ga, respectively. Detrital zircon Hf isotopic data indicate that the Tarim Craton experienced three crustal growth events during the Late Paleoarchean, Early Neoarchean, and Early Paleoproterozoic, respectively.



