Metallization characteristics and gold ore controlling factors in the south region of Tra Nu - Phuoc Thanh, Quang Nam Province

  • Affiliations:

    Hanoi University of Mining and Geology, Hanoi, Vietnam

  • *Corresponding:
    This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Received: 15th-Dec-2023
  • Revised: 4th-Mar-2024
  • Accepted: 22nd-Mar-2024
  • Online: 1st-Apr-2024
Pages: 56 - 65
Views: 245
Downloads: 6
Rating: , Total rating: 0
Yours rating

Abstract:

The gold mineralization in the southern region of Tra Nu-Phuoc Thanh was initially discovered and assessed by the Central Geological Division. However, mineralization characteristics and ore-controlling factors in the Tra Nu-Phuoc Thanh area remain inadequately understood. To assess the gold mineralization potential in this research area, this study conducts a comprehensive synthesis of prior research findings, complemented by the analysis of an additional 50 thin sections, 100 thick sections, SEM scanning electron microscopy, and 10 ICP-MS samples. The research results reveal the presence of gold deposits within the study area, including native gold and electrum. The identified gold-bearing minerals in the deposits encompass quartz, pyrite, galena, sphalerite, pyrrhotite, and goethite. The ore formations predominantly exhibit disseminated, vein, and breccia structures, along with granular, semi-granular, spherical, and solid inclusions. It has been ascertained that the gold ore in the study area belongs to the gold-quartz-sulfur formation and can be categorized into two types: gold-quartz-pyrite ore and polymetallic gold-quartz-sulfur ore. The ore is primarily situated within ancient metamorphic sedimentary rocks of the Kham Duc formation and young granitoid rocks of the Ba Na complex. Typically, the gold ore body occurs in a single-vessel form, with less common branched, vascular zone, and infiltrative vascular forms. All gold ore bodies are aligned along the fault systems, primarily oriented in the northeast-southwest direction. These sub-meridian fault systems serve as conduits for hydrothermal solutions carrying gold ore in the study area.

How to Cite
Le, T.Thi 2024. Metallization characteristics and gold ore controlling factors in the south region of Tra Nu - Phuoc Thanh, Quang Nam Province. Journal of Mining and Earth Sciences. 65, 2 (Apr, 2024), 56-65. DOI:https://doi.org/10.46326/JMES.2024.65(2).07.
References

Bao, X. N. (eds.) (2001). Tectonic and Mineralogy in Southern Vietnam. Archives of the Department of Geology and Minerals of Vietnam, Hanoi (in Vietnamese).

Binh, Q. V. (eds.) (2016). Research and predicting the potential of gold minerals deep hidden in the gold ore fields in the Tam Ky-Phuoc Son zone in the Mid Central region. Ministerial - level scientific research project. Code TNMT.2016.03.02.

Khai, N. Vu., Kiyoshi. W., Kiem, D. D., Chu, V. N. (1994). Age of zircon fission traces taken from two granite complexes Dai Loc and Ba Na in North Central Vietnam. The Vietnam Geological Department, A/220: 15-30, Hanoi (in Vietnamese).

Li, X. C., Fan, H. R., Santosh, M., Hu, F. F., Yang, G. F., Lan, T. G. (2013). Hydrothermal alteration associated with Mesozoic granite-hosted gold mineralization at the Sanshandao deposit, Jiaodong Gold Province, China. Ore Geology Reviews, 53: 403-421.

Luat, Q. N. (1995). Characteristic of post- magmatic ore zonation at the northern edge of the Kon Tum block. PhD thesis, Hanoi University of Mining and Geology (in Vietnamese).

Takayuki, M. (2014). Study of Mineralogical, Geochemical and Geochronological Characteristics and Ore Genesis in Phuoc Son Gold Deposit Area, Central Vietnam. CODES ARC Centre of Excellence in Ore Deposits University of Tasmania (UTAS), Australia.