Tạp chí
 
Các số tiếng Anh
 
Số 64, Kỳ 6, [12 - 2023] - Tiếng Anh

In situ U-Pb isotopic dating method on titanite, and application to determine REE-Fe-Cu mineralization age of the Sin Quyen deposit, Lao Cai province

DOI:10.46326/JMES.2023.64(6).06

  • Cơ quan:

    1 The Vietnam Institute of Geosciences and Mineral Resources, Hanoi, Vietnam
    2 Hanoi University of Mining and Geology, Hanoi, Vietnam
    3 The Radioactive and Rare Minerals Division, Hanoi, Vietnam

  • *Tác giả liên hệ:
    This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Nhận bài: 28-07-2023
  • Sửa xong: 04-11-2023
  • Chấp nhận: 29-11-2023
  • Ngày đăng: 01-12-2023
Trang: 50 - 57
Lượt xem: 451
Xem onlineXem online
Lượt tải: 12
Tải về PDF
★★★★★Yêu thích: , Số lượt: 0
  • ★
  • ★
  • ★
  • ★
  • ★
Bạn yêu thích

Tóm tắt:

Titanite (CaTiSiO5) is an important common accessory mineral in hydrothermal deposits, with appreciable amounts of U and Th incorporated into their structures for age dating. Titanite crystals are usually larger than zircon and monazite and may have zoning in texture and geochemistry which represent different parageneses likely related to multiple hydrothermal or mineralization events. In line with the development of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) that has high sensitivity and spatial resolution, in-situ U-Pb isotopic dating method on titanite has become a powerful tool to investigate the ages of different zones from a mineral. Titanite typically accommodates a significant amount of Rare Earth Elements (REEs) and High Field Strength Elements (HFSEs) and the titanite generated from different origins exhibits distinct trace element geochemistry. Therefore, the trace element geochemistry of titanite can serve as an indicator of its formation environment. Titanite occurred in different mineralization stages of the Sin Quyen deposit, making it a suitable mineral for investigating the timing of mineralization. In this paper, we present the U-Pb age of titanite from different stages of the Sin Quyen deposit used to constrain the timing and origin of such events. The hydrothermal titanites are dated by in situ LA-ICP-MS technique and have U-Pb ages of 873±12 Ma and 844±12 Ma which indicate two mineralization/hydrothermal events at the same time, respectively. These ages from the Sin Quyen deposit are well correlated with regional tectono-thermal events during the long-lived Neoproterozoic subduction in the western Yangtze Block.

Trích dẫn
Dac Xuan Ngo ., Son Hai Trinh, Tin Duc Quach, Hung The Khuong, Thu Thi Le, Thoa Thi Hoang và Giang Hoang Phan, 2023. In situ U-Pb isotopic dating method on titanite, and application to determine REE-Fe-Cu mineralization age of the Sin Quyen deposit, Lao Cai province, Tạp chí Khoa học kỹ thuật Mỏ - Địa chất, số 64, kỳ 6, tr. 50-57.
Tài liệu tham khảo

Barton, M. D. (2014). Iron Oxide (Cu-Au-REE-P-Ag-U-Co) Systems. Treatise on Geochemistry 2nd Edition, 515-541.

Cai, Y., Wang, Y., Cawood, P. A., Fan, W., Liu, H., Xing, X., and Zhang, Y. (2014). Neoproterozoic subduction along the Ailaoshan zone, South China: Geochronological and geochemical evidence from amphibolite. Precambrian Research, 245, 13-28.

Cai, Y. F., Wang, Y. J., Cawood, P. A., Zhang, Y. Z., Zhang, A. (2015). Neoproterozoic crustal growth of the Southern Yangtze Block: Geochemical and zircon U-Pb geochronological and Lu-Hf isotopic evidence of Neoproterozoic diorite from the Ailaoshan zone. Precambrian Research, 266, 137-149.

Frost, B. R., Chamberlain, K. R., Schumacher, J. C. (2001). Sphene (titanite): phase relations and role as a geochronometer. Chemical Geology, 172(1-2), 131-148.

Li, X. C., Zhou, M. F., Chen, W. T., Zhao, X. F., Tran, M. D. (2018). Uranium-lead dating of hydrothermal zircon and monazite from the Sin Quyen Fe-Cu-REE-Au-(U) deposit, northwestern Vietnam. Miner. Deposita 53(3), 399-416.

Li, J. W., Deng, X. D., Zhou, M. F., Liu, Y. S., Zhao, X. F., Guo, J. L. (2010). Laser ablation ICP-MS titanite U-Th-Pb dating of hydrothermal ore deposits: a case study of the Tonglushan Cu-Fe-Au skarn deposit, SE Hubei Province, China. Chemical Geology, 270(1-4), 56-67.

Ludwig, K. R. (2003). User's manual for IsoPlot 3.0. A geochronological toolkit for Microsoft Excel, 71. Berkeley Geochronology Center Special Publications 4, 1-75.

Mclean, R. N. (2001). The Sin Quyen iron oxide-copper-gold-rare earth oxide mineralization of North Vietnam, In: Porter, T.M. (Ed.), Hydrothermal iron oxide copper-gold and related deposits: A global perspective, 2, 293-301.

Ngo, X. D., Zhao, X. F., Tran, T. H., Deng, X. D., and Li, J. W. (2020). Two episodes of REEs mineralization at the Sin Quyen IOCG deposit, NW Vietnam. Ore Geology Reviews, 125, 103676.

Pham, Q. D. (2015). Exploration report on no. 3 and no. 7 ore bodies of the Sin Quyen deposit, Lao Cai province. Archival Mag. of Natl. Geol. Dept. of Vietnam, pp. 1-85 (in Vietnamese).

Spandler, C., Hammerli, J., Sha, P., Hilbert-Wolf, H., Hu, Y., Roberts, E., Schmitz, M. (2016). MKED1: A new titanite standard for in situ analysis of Sm-Nd isotopes and U-Pb  

geochronology. Chemical Geology, 425, 110-126.

Storey, C. D., Jeffries, T. E., Smith, M. (2006). Common lead-corrected laser ablation ICP MS U-Pb systematics and geochronology of titanite. Chemical Geology, 227(1-2), 37-52.

Ta, V. D. (1975). The Geological Report on Detailed Exploration of the Sin Quyen Copper Deposit. General Department of Geology and Minerals of Vietnam, pp. 1-518 (in Vietnamese).

Tran, M. D., Liu, J. L., Li, X. C., Dang, M. C. (2016). Geology, Fluid Inclusion and Isotopic Study of the Neoproterozoic Suoi Thau Copper Deposit, Northwest Vietnam. Acta Geologica Sinica‐English Edition. 90(3), 913-927.

Zhao, X. F., Zhou, M. F., Li, J. W., W u, F. Y. (2008). Association of Neoproterozoic A- and Itype granites in South China: Implications for generation of A-type granites in a subduction-related environment. Chemical Geology, 257(1-2), 1-15.