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Year 2021
 
Vol 62, Issue 2, [04 - 2021]

U - Pb geochronology and composition of zircon mineral from granodiorite in the G18 Gold mine, Quang Nam and its significance in regional tectonics

DOI:10.46326/JMES.2021.62(2).01

  • Affiliations:

    1 Hanoi University of Mining and Geology, Hanoi, Vietnam
    2 National Central University, Taoyuan, Taiwan

  • *Corresponding:
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  • Received: 17th-Nov-2020
  • Revised: 3rd-Mar-2021
  • Accepted: 29th-Mar-2021
  • Online: 30th-Apr-2021
Pages: 1 - 11
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Cited by: 2

Abstract:

The Tam Ky - Phuoc Son suture zone (TPSZ) is located in central Indochina and is referred to as a amalgamation site between the Truong Son and Kon Tum terranes during the early Paleozoic. The amphibolite and ultramafic rocks within the region were considered as a part of the Tam Ky - Phuoc Son ophiolitic complex. In this study, the authors present results of the U - Pb dating and trace element composition of the zircon grains derived from a granodioritic sample collected in the G18 gold mine in Quang Nam province in order to clarify the timing of magma emplacement and tectonic setting. The U - Pb dating data indicates that the granodioritic rocks formed at 447,4±2,9 Ma while the U/Yb ratio is ̴1 (average: 1.32) and the Sc/Yb ratio is ̴ 1.04, high Hf content (Average Hf: 10937 ppm) and low Yb content (Average Yb: 308 ppm). These geochemical values are comparable with the zircon, which is formed in the continental magmatic arc. Combination with the pre - existing data allowed us to confirm the existence of two contrast magma members in the North Kontum massif: The Middle Cambrian island arc complex and the Middle Ordovician continental complex.

How to Cite
Ngo, T.Xuan, Bui, H.Vinh, Tran, H.Thanh, Phan, B.Van, Dang, B.Van and ., D.Anh Vu 2021. U - Pb geochronology and composition of zircon mineral from granodiorite in the G18 Gold mine, Quang Nam and its significance in regional tectonics (in Vietnamese). Journal of Mining and Earth Sciences. 62, 2 (Apr, 2021), 1-11. DOI:https://doi.org/10.46326/JMES.2021.62(2).01.
References

Andersen, T., (2002). Correction of common lead in U - Pb analyses that do no report 204Pb. Chem. Geol. 192. 59 - 79. 

Barth, A. P., Wooden, J. L., Jacobson, C. E., and Economos, R. C., (2013). Detrital zircon as a proxy for tracking the magmatic arc system: The California arc example. Geology 41. 223 - 226. 

Bialy, M. Z. E., and Ali, K. A., (2013). Zircon trace element geochemical constraints on the evolution of the Ediacaran (600 - 614Ma) post - collisional Dokhan Volcanics and Younger Granites of SE Sinai, NE Arabian - Nubian Shield. Chemical Geology 360 - 361. 54 - 73. 

Bui, V. T. S., Osanai, Y., Nakano, N., Adachi, T., Kitano, I., Owada, M., (2020). Timing of high - grade metamorphism in the Kontum Massif, Vietnam: Constraints from zircon - monazite multi - geochronology and trace elements geochemistry of zircon - monazite - garnet. Journal of Asian Earth Sciences 187. 104084. https://doi.org/10.1016/j.jseaes.2019.104084 

Carter, A., Roques, D., Bristow, C., Kinny, P., (2001). Understanding Mesozoic accretion in Southeast Asia: significance of Triassic thermotectonism (Indosinian Orogeny) in Vietnam. Geology 29 (3). 211 - 214. 

Ferry, J. M. and Watson, E. B., (2007). New thermodynamic models and revised calibrations for the Ti-in-zircon and Zr-in-rutile thermometers. Contributions to Mineralogy and Petrology 154. 429-37. 

Gardner, C. J., Graham, I. T., Belousova, E., Booth, G. W., Greig, A., (2017). Evidence for Ordoviciansubduction - related magmatism in the Truong Son terrane, SE Laos: implications for Gondwana evolution and porphyry Cu exploration potential in SE Asia. Gondwana Research 44, 139 - 156. https://doi.org/10. 1016 /j.gr.2016.11.003. 

Grimes, C. B., John, B. E., Kelemen, P. B., Mazdab, F. K., Wooden, J. L., Cheadle, M .J., Hanghj, K., Schwartz, J. J., (2007). Trace element chemistry of zircons from oceanic crust: A method for distinguishing detrital zircon provenance. Geology 35. 643 - 646. 

Grimes, C. B., Wooden, J. L., Cheadle, M. J., John, B. E., (2015). “Fingerprinting” tectono - magmatic provenance using trace elements in igneous zircon. Contributions to Mineralogy and Petrology 170 (46). https://doi.org/10.1007/ s00410 - 015 - 1199 - 3. 

Harley, S. L., Kelly, N. M., Möller, A., (2007). Zircon behaviour and the thermal histories of Mountain Chains. Elements 3: 25 - 30. 

Hoskin P. W. O., Schaltegger U., (2003). The Composition of Zircon and Igneous and Metamorphic Petrogenesis. Reviews in Mineralogy and Geochemistry 53. 27 - 62. 

Izokh, A. E., Tran, T. H., Ngo, T. P., Tran, Q. H., (2006). Ophiolite ultramafic - mafic associations in the northern structure of the Kon Tumblock (central Vietnam). Journal of Geology 28. 20 - 26 (Department of Geology and Minerals of Vietnam). 

Lepvrier, C., Maluski, H., Vu, V. T., Leyreloup, A., Phan, T. T., Nguyễn, V. V., (2004). The Early Triassic Indochinian orogeny in Vietnam (Truong Son Belt and Kontum Massif); implications for the geodynamic evolution of Indochina. Tectonophysics 393 (1 - 4). 87 - 118. 

Lepvrier, C., Nguyễn, V. V., Maluski, H., Tran, P. T., Vu, V. T., (2008). Indosinian tectonics in Vietnam. C.R. Geosci. 340. 94 - 111. 

Liu, Y. S., Hu, Z. C., Gao, S., Gunther, D., Xu, J., Gao, C. G. and Chen, H. H., (2008). In situ analysis of major and trace elements of anhydrous minerals by LA - ICP - MS without applying an internal standard. Chem. Geol. 257. 34 - 43. 

Ludwig, K. R. (2008): Isoplot/Ex 3.70. A Geochronological Toolkit for Microsoft Excel. Berkeley Geochronological Center, Berkely, Special publication No. 4. 76 pp. 

Maluski, H., Lepvrier, C., Leyreloup, A., Van, T. V., Thi, P. T., (2005). Ar40 - Ar39 geochronology of the charnockites and granulites of the Kan Nack Complex, Kon Tum Massif, Vietnam. Journal of Asian Earth Sciences 25 (4). 653 - 677. https:// doi.org/10.1016/j.jseaes.2004.07.004. 

Nagy, E. A., Maluski, H., Lepvrier, C., Scharer, U., Tran, T. P., Leyreloup, A., Vu, V. T., , (2001). Geodynamic significance of the Kontum massif in central Vietnam: composite Ar - 40/Ar - 39 and U - Pb ages from Paleozoic to Triassic. Journal of Geology 109 (6). 755 - 770. 

Nguyễn, M. Q., Feng, Q., WeiZi, J., Zhao, T., Tran, T. H., Ngo, X. T., Tran, M. D., Nguyễn, Q. H., Nguyễn, Q. H., (2019). Cambrian intra - oceanic arc trondhjemite and tonalite in the Tam Ky - Phuoc Son Suture Zone, central Vietnam: Implications for the early Paleozoic assembly of the Indochina Block. Gondwana Research 70. 151 - 170. 

Nakano, N., Osanai, Y., Owada, M., (2007a). Multiplase breakdown and chemical equilibrium of silicic clinopyroxene under extreme metamorphic conditions in the Kontum Massif, central Vietnam. Am. Mineral. 92. 1844 - 1855. 

Nakano, N., Osanai, Y., Owada, M., Tran, N. N., Toyoshima, T., Pham, B., P., Tsunogae, T., Kagami, H., (2007b). Geologic and metamorphic evolution of the basement complexes in the Kontum Massif, central Vietnam. Gondwana Res. 12, 438 - 453. 

Nakano, N., Osanai, Y., Owada, M., Nam, T. N., Charusiri, P., Khamphavong, K., (2013). Tectonic evolution of high - grade metamorphic terranes in central Vietnam: Constraints from large - scale monazite geochronology. J. Asian Earth Sci. 73 (5). 520 - 539. 

Osanai, Y., Owada, M., Tsunogae, T., Toyoshima, T., Hokada, T., Tran, V. L., Sajeev, K., Nakano, N., (2001). Ultrahigh - temperature pelitic granulites from Kontum Massif, central Vietnam: Evidence for East Asian juxtaposition at 250 Ma. Gondwana Res. 4(4). 720 - 723. 

Osanai, Y., Nakano, N., Owada, M., Tran, N. N., Toyoshima, T., Tsunogae, T., Pham, B., (2004). Permo - Triassic ultrahigh - temperature metamorphism in the Kontum Massif, central Vietnam. J. Mineral. Petrol. Sci. 99 (4). 225 - 241. 

Phạm, T. D., Tran, T. H, Tran. T., P., Tran, N. P., Tran, T. A., Bui, A. N., (2006). Characteristics of mineral composition (olivine, pyroxene, chrome spinel) of ultramafic intrusions located in the margin of the Kon Tum Block. Journal of Geology 28. 47 - 57. 

Roger, F., Maluski, H., Leyreloup, A., Lepvrier, C., Tran, T. P., (2007). U - Pb dating of high temperature metamorphic episodes in the Kontum Massif (Vietnam). J. Asian Earth Sci. 30. 565 - 572. 

Shi, M. F., Lin, F. C., Fan, W. Y., Deng, Q., Cong, F., Tran, M. D., Zhu, H., Wang, H., (2015). Zircon U - Pb ages and geochemistry of granitoids in the Truong Son terrane, Vietnam: tectonic and metallogenic implications. Journal of Asian Earth Sciences 101. 101 - 120. 

Trần, T. H., Zaw, K., Halpin, J. A., Manaka, T., Meffre, S., Lai, C. K., Lee, Y., Le, H. V., Dinh, S., (2014). The Tam Ky - Phuoc Son shear zone in Central Vietnam: tectonic and metallogenic implications. Gondwana Research 26 (1). 144 - 164. 

Trần Văn Trị và Vũ Khúc (cb), (2009). Địa chất và tài nguyên Việt Nam. Nhà xuất bản Khoa học tự nhiên và Công nghệ, 589 tr. 

Trịnh Thế Lực, Trần Thanh Hải, Nguyễn Hữu Hiệp, Bùi Hoàng Bắc, Andrew Carter, (2019). Phát hiện mới về tuổi tuyệt đối của đá Granodiorite Phức hệ Chu Lai thuộc vùng Đông bắc Quảng Ngãi. Tạp chí Khoa học Kỹ thuật Mỏ - Địa chất, Tập 60(1). 7 - 14. 

Usuki, T., Lan, C. Y., Yui, T. F., Iizuka, Y., Vu, T. V., Tran, T. A., Okamoto, K., Wooden, J. L., Liou, J. G., (2009). Early Paleozoic medium - pressure metamorphism in central Vietnam: evidence from SHRIMP U - Pb zircon ages. Geosci. J. 13 (3). 245 - 256. 

Wang, Y., Wang, Y., Qian, X., Zhang, Y., Gan, C., Senebouttalath, V., Wang, Y., (2020). Early Paleozoic subduction in the Indochina interior: Revealed by Ordo - Silurian mafic - intermediate igneous rocks in South Laos. Lithos. https://doi. org/10.1016/j.lithos.2020.105488. 

Yang, J. H., Cawood P. A., Du Y. S., Huang H., Huang H.W., Tao P., (2012). Large Igneous Province and magmatic arc sourced Permian - Triassic volcanogenic sediments in China. Sedimentary Geology 261, 120 - 131.

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