TRACKING DEEP ANCIENT CRUSTAL COMPONENTS BY XENOCRYSTIC ZIRCONS OF PALEOZOIC FELSIC IGNEOUS ROCKS FROM THE ALTAI-EAST JUNGGAR TERRANE AND ADJACENT REGIONS AND ITS TECTONIC SIGNIFICANCE
https://doi.org/10.5800/GT-2017-8-3-0305
Abstract
The deep crustal continental components and architecture of the Central Asian Orogenic Belt have long been a matter of debate [Wang et al., 2009; Kröner et al., 2014; Xiao et al., 2015; Yang et al., 2017]. We present an integrated study of geochronological and Hf-inzircon isotopic data for xenocrystic zircons from the Paleozoic granitoid rocks and associated felsic volcanic rocks of the Chinese Altai, East Junggar and nearby regions. The aim is to trace the age spatial distribution of deep old crustal components in these key parts of the western Central Asian Orogenic Belt.
About the Authors
Jianjun Zhang
Institute of Geology, Chinese Academy of Geological Sciences;
China University of Geosciences
China
China
Beijing;
State Key Laboratory of Geological Processes and Mineral Resources, Beijing 100083
Tao Wang
Institute of Geology, Chinese Academy of Geological Sciences
China
Beijing
China
Beijing
Ying Tong
Institute of Geology, Chinese Academy of Geological Sciences
China
Beijing
China
Beijing
Zhaochong Zhang
China University of Geosciences
China
China
State Key Laboratory of Geological Processes and Mineral Resources,
Beijing 100083
He Huang
Institute of Geology, Chinese Academy of Geological Sciences
China
Beijing
China
Beijing
Lei Zhang
Institute of Geology, Chinese Academy of Geological Sciences
China
Beijing
China
Beijing
Lei Guo
Institute of Geology, Chinese Academy of Geological Sciences
China
Beijing
China
Beijing
Peng Song
Institute of Geology, Chinese Academy of Geological Sciences
China
Beijing
China
Beijing
Zengqian Hou
Institute of Geology, Chinese Academy of Geological Sciences
China
Beijing
China
Beijing
References
1. Kröner A., Kovach V., Belousova E., Hegner E., Armstrong R., Dolgopolova A., Seltmann R., Alexeiev D.V., Hoffmann J.E., Wong J., Sun M., Cai K., Wang T., Tong Y., Wilde S.A., Degtyarev K.E., Rytsk E., 2014. Reassessment of continental growth during the accretionary history of the Central Asian Orogenic Belt. Gondwana Research 25 (1), 103–125. https://doi.org/10.1016/j.gr.2012.12.023.
2. Wang T., Jahn B.-M., Kovach V.P., Tong Y., Hong D.-W., Han B.-F., 2009. Nd–Sr isotopic mapping of the Chinese Altai and implications for continental growth in the Central Asian Orogenic Belt. Lithos 110 (1–4), 359–372. https:// doi.org/10.1016/j.lithos.2009.02.001.
3. Xiao W.J., Windley B., Sun S., Li J.L., Huang B.C., Han C.M., Yuan C., Sun M., Chen H.L., 2015. A tale of amalgamation of three Permo-Triassic collage systems in Central Asia: oroclines, sutures, and terminal accretion. Annual Review of Earth and Planetary Sciences 43, 477–507. https://doi.org/10.1146/annurev-earth-060614-105254.
4. Yang Q.D., Wang T., Guo L., Tong Y., Zhang L., Zhang J.J., Hou Z.Q., 2017. Nd isotopic variation of Paleozoic-Mesozoic granitoids from the Da Hinggan mountains and adjacent areas, NE Asia: implications for the architecture and growth of continental crust. Lithos 272–273, 164–184. https://doi.org/10.1016/j.lithos.2016.11.015.
5. Zhang J.J., Wang T., Tong Y., Zhang Z.C., Song P., Zhang L., Huang H., Guo L., Hou Z.Q., 2017. Tracking deep ancient crustal components by xenocrystic/inherited zircons of Palaeozoic felsic igneous rocks from the Altai–East Junggar terrane and adjacent regions, western Central Asian Orogenic Belt and its tectonic significance. International Geology Review (in press). http://dx.doi.org/10.1080/00206814.2017.1308841.
Review
For citations:
Zhang J., Wang T., Tong Y., Zhang Zh., Huang H., Zhang L., Guo L., Song P., Hou Z. TRACKING DEEP ANCIENT CRUSTAL COMPONENTS BY XENOCRYSTIC ZIRCONS OF PALEOZOIC FELSIC IGNEOUS ROCKS FROM THE ALTAI-EAST JUNGGAR TERRANE AND ADJACENT REGIONS AND ITS TECTONIC SIGNIFICANCE. Geodynamics & Tectonophysics. 2017;8(3):605-607. https://doi.org/10.5800/GT-2017-8-3-0305
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