Some preliminary results from study of the potential of ferromanganese crusts in Pliocene - Quaternary sediments, offshore Southwestern Vietnam

  • Nguyen Thi Tham
  • Pham Ba Trung
  • Hoang Nhat Hung
  • Nguyen Hoai Chung
  • Le Chi Mai
  • Nguyen Thanh Tuyen
  • Ta Thi Hoa
  • Nguyen Van Hieu
  • Nguyen Quang Tuan
Keywords: Hard minerals, hydrogenetic process, hydrothermal, Pliocene - Quaternary, Fe-Mn oxide, Nam Con Son basin, Tu Chinh - Vung May basin, southwestern area of the East Sea

Abstract

Nam Con Son and Tu Chinh – Vung May basins are considered to have big potential of seabed hard minerals such as ferromanganese (Fe-Mn) crusts or aggregates. Analysis of samples collected from the southwestern area of the East Sea shows that the Fe-Mn content varies from 15 – 21% along with the presence of other valuable metal elements such as Ti (11.092 ppm), Ba (3.836 ppm), and Ni (1.932 ppm), etc. Moreover, some rare earth elements are also encountered with fairly high fraction (roughly 370 ppm/sample in average), of which Ce (168 ppm), La (52 ppm), and Nd (43 ppm) are predominant. These samples were formed mainly by hydrogenetic and hydrothermal processes. The formation of the Fe-Mn oxide samples is closely relating to accumulation of rare earth elements such as La, Ce, Pr, Sm, Eu, etc.

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Published
2020-08-12
How to Cite
Nguyen Thi Tham, Pham Ba Trung, Hoang Nhat Hung, Nguyen Hoai Chung, Le Chi Mai, Nguyen Thanh Tuyen, Ta Thi Hoa, Nguyen Van Hieu, & Nguyen Quang Tuan. (2020). Some preliminary results from study of the potential of ferromanganese crusts in Pliocene - Quaternary sediments, offshore Southwestern Vietnam. Petrovietnam Journal, 8, 34 - 44. Retrieved from https://pvj.vn/index.php/TCDK/article/view/331
Issue
Vol 8 (2020)
Section
Articles

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