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Year 2022
 
Vol 63, Issue 4, [08 - 2022]

U-Pb zircon LA-ICP-MS and Hf composition in granitogneiss of Chu Lai body and its implication of the Kontum massif, central Vietnam

DOI:10.46326/JMES.2022.63(4).04

  • Affiliations:

    1 Hanoi University of Mining and Geology, Hanoi, Vietnam
    2 Vietnam Insitutute of Geosciences and Mineral Resources, Hanoi, Vietnam

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  • Received: 16th-Oct-2021
  • Revised: 23rd-Jan-2022
  • Accepted: 21st-Mar-2022
  • Online: 31st-Aug-2022
Pages: 35 - 44
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Abstract:

The Chu Lai granitogneiss is widespread throught the Northern Kontum massif. The Chu Lai body is located in the W-SW of the Nui Thanh Townlet (Nui Thanh Dists., Quang Nam Prov.). On an areas of ~ 300 km2. The Chu Lai intrusion mainly consists two mica gneiss, it is light grey and have porphyritic textures. Its major minerals include plagioclase (25÷40%), K-feldpar (20÷40%), quartz (25÷35%), biotite (5÷13%) and mustcovite (0÷6%). Accessory minerals are apatite, zircon, orthit. Garnet and tourmaline are occiasionally found. Zircons separated from a granitogneiss sample colleted in Chu Lai body are generally euhedral to subhedral, dark gray and prissmatic in shape with 100÷300 µm, with length/witdth ratios from 1:1÷1:3. There are many Neoproterozoic - Cambrian ages among the zircon cores in the Chu Lai samples, and these are regarded as inherited zircons. The LA-ICP-MS zircon age is 431 Ma, corresponding to the Silurian. The Chu Lai granitogneiss strongly negative zircon εHf (-4.2÷-11.4) and complex inherited zircon components, characteristics of typical S-type granite. Hf model ages TDM2 1.5÷1.9 Ga, suggests that the Chu Lai granitogneiss was derived from partial melting of old crustal basement rocks, probaly Paleoproterozoic in age.

How to Cite
Nguyen, T.Huu, Le, D.Tien, To, B.Xuan, Pham, A.Van Thi, Ngo, T.Xuan, Ha, N.Thanh and Nguyen, L.Ly Thi 2022. U-Pb zircon LA-ICP-MS and Hf composition in granitogneiss of Chu Lai body and its implication of the Kontum massif, central Vietnam (in Vietnamese). Journal of Mining and Earth Sciences. 63, 4 (Aug, 2022), 35-44. DOI:https://doi.org/10.46326/JMES.2022.63(4).04.
References

Bui, M.T. (2008) (ed.). Report on the progress of magma activity in Vietnam from the perspective of plate tectonics. Vietnam Institue of Geoscience and Mineral resources, Hanoi. (in Vietnamese)

Dao, D.T., Huynh, T. (1995). Geology of Vietnam. Volume II – Magmatism. General Department of Geology and Mineral Resources of Vietnam, Hanoi. (in Vietnamese)

Dinh, Q.S. (2017). Petrographic characteristics and zircon U-Pb geochronology of granite gneiss rocks in the Chu Lai - Kham Duc area (Quang Nam province). VNUHCM Journal of Natural Sciences, Vol. 1, No. 6, pp. 258-272. (in Vietnamese)

Corfu, F., Hanchar, J.M., Hoskin, P.W.O., and Kinny, P. (2003). Atlas of zircon textures. Reviews in Mineralogy and Geochemistry, Vol. 53, No. 1, pp. 469-500.

Hieu, P.T., Dung, N.T., Thuy, N.T.B., Minh, N.T., and Minh, P. (2016). U-Pb ages and Hf isotopic composition of zircon and bulk rock geochemistry of the Dai Loc granitoid complex in Kon Tum massif: Implications for early Paleozoic crustal evolution in central Vietnam. Journal of Mineralogical and Petrological Sciences, Vol. 111, No. 5, pp. 326-336.

Hoffet, J.H. (1935). Geological map of Indochina at scale 1: 500,000, No.12 of Da Nang sheet with explanations written according to the works of H. Counillon. R., Bourret and Hoffet, Publishing: SGI, Hanoi.

Hoskin, P.W.O., and Schaltegger, U. (2003). The composition of zircon and igneous and metamorphic petrogenesis. Reviews in Mineralogy and Geochemistry, Vol. 53, No. 1, pp. 27-62.

Hurley, P.M., and Fairbairn, H.W. (1972). Rb-sr ages in Vietnam: 530 m.y. event. Bulletin of the Geological Society of America, Vol. 83, No. 11, pp. 3525 - 3528.

Huynh, T., Nguyen, D.T. (1979). Granitoid of the Dai Loc massif, Sa Huynh, Chu Lai. Southern Geological Division, Vol. 111, No. 5, pp. 326-336. (in Vietnamese)

Liu, Y., Zong, K., Kelemen, P.B., and Gao, S. (2008). Geochemistry and magmatic history of eclogites and ultramafic rocks from the Chinese continental scientific drill hole: Subduction and ultrahigh-pressure metamorphism of lower crustal cumulates. Chemical Geology, Vol. 247, No. 1, pp. 133-153.

Liu, Y., Gao, S., Hu, Z., Gao, C., Zong, K., and Wang, D. (2010). Continental and oceanic crust recycling-induced melt–peridotite interactions in the Trans-North China Orogen: U–Pb dating, Hf isotopes and trace elements in zircons from mantle xenoliths. Journal of petrology, Vol. 51, No. 1-2, pp. 537-571.

Metcalfe, I. (2002). Permian tectonic framework and palaeogeography of SE Asia. Journal of Asian Earth Sciences, Vol. 20, No. 6, pp. 551-566.

Metcalfe, I. (2013). Gondwana dispersion and Asian accretion: Tectonic and palaogeographic evolution of eastern Tethys. Journal of Asian Earth Sciences, Vol. 66, pp. 1-33.

Minh, N.T., Dung, N.T., Hung, D.D., Minh, P., Yu, Y., and Hieu, P.T. (2020). Zircon U-Pb ages, geochemistry, and isotopic characteristics of the Chu Lai granitic pluton in the Kontum massif, central Vietnam. Mineralogy and Petrology, Vol. 114, No. 4, pp. 289-303.

Nagy, E.A., Maluski, H., Lepvrier, C., Schärer, U., Thi, P.T., Leyreloup, A., and Thich, V.V. (2001). Geodynamic significance of the Kontum massif in central Vietnam: composite 40Ar/39Ar and U-Pb ages from Paleozoic to Triassic. The Journal of Geology, Vol. 109, No. 6, pp. 755-770.

Nguyen, H.T., Le, T.D., Pham, T.H. (2018). U-Pb zircon LA-ICP-MS and Hf composition in andesite of Ru Ri pass - Nha Trang and its geological significance. Vietnam Journal of Science and Technology, Vol. 60, No. 3, pp. 1-6. (in Vietnamese)

Tran, N.N. (2004). Zircon U-Pb age of 436 M.a of the Song Re complex in Komtum geological block and its significance. Journal of Geology. No. A281. (in Vietnamese)

Tran, 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 Res, Vol. 26, No. 1, pp. 144-164.

Trinh, T.L., Tran, T.H., Nguyen, H.H., Bui, H.B., and Carter, A. (2019). New results of the study on isotopic age of the Granodiorite of Chu Lai Complex in North Eastern Quang Ngai by U-Pb zircon isotope dating method. Journal of Mining and Earth Sciences, Vol. 60, No. 1, pp. 7-14. (in Vietnamese)

Trong, N.H., Zong, K., Liu, Y., Yuan, Y., Hieu, P.T., Dung, L.T., and Minh, P. (2021). Early Paleozoic Arc Magmatism and Accretionary Orogenesis in the Indochina Block, Southeast Asia. The Journal of Geology, Vol. 129, No. 1, pp. 33-48.

Jiang, W., Yu, J.H., Wang, X., Griffin, W.L., Pham, T., Nguyen, D., and Wang, F. (2020). Early Paleozoic magmatism in northern Kontum Massif, Central Vietnam: Insights into tectonic evolution of the eastern Indochina Block. Lithos, Vol. 376, 105750.

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