Project's information
| Project's title | Studying in P and S wave velocity structure of the crust and upper mantle beneath the Indochina penisula and East Vietnam sea regions – Illumining the structure of ancient subduction zones and volcanic sources |
| Project’s code | VAST06.02/20-21 |
| Research hosting institution | Institute of Geophysics |
| Project leader’s name | Nguyen Van Duong |
| Project duration | 01/01/2020 - 30/06/2022 |
| Project’s budget | 600 million VND |
| Classify | Grade B |
| Goal and objectives of the project | - Estimate a 3D model of P, S wave velocity and Vp/Vs ratio in Indochina and Vietnam East Sea.
- Determine the characteristics of velocity structures in the upper Mantle and their relation to the tectonic evolution in Indochina and Vietnam East Sea.
- Determine the relationship between the melting sources in the Mantle and the distribution of basalt and volcanic eruptions on the surface beneath Indochina penisula and East Vietnam Sea regions. |
| Main results | - Theoretical results:
+) Constructed the 3D model of seismic wave velocity in the upper mantle beneath Indochina penisula and East Vietnam Sea regions
+) Constructed the cross-sections of seismic wave propagation through tectonic units and mantle molten region, which is possibly related to volcanic activity.
- Applied results:
+) Teleseismic dataset recorded at seismic stations in Vietnam and adjacent regions. |
| Novelty and actuality and scientific meaningfulness of the results | The project used seismic broadband data recorded in Vietnam and adjacent areas to determine the 3D structure of seismic wave propagation velocity in Indochina and the East Sea. These findings shed light on the dynamics of the Mantle and the origins of basaltic and volcanic activity in Indochina and the East Sea. |
| Products of the project | - Scientific papers in referred journals (list):
Nguyen, V.-D., Huang, B.-S., Lai, Y.-C, Nguyen, L.M., Le, T.-S., Dinh, V.-T., Wen, K.-L., Lai, H.-P., 2020. Deep crust analysis beneath northern Vietnam by using receiver function: Implications for SE Asia continental extrusion, Terr. Atmos. Ocean. Sci., 31, 1-16, doi: 10.3319/TAO.2020.030501.
Đỗ Văn Lĩnh., Nguyễn Lợi Lộc., Đinh Quốc Văn., Vũ Trọng Tấn., Nguyễn Xuân Huy., Đinh Quang Sang., Nguyễn Thị Thu Thủy., Nguyễn Thanh Sang., Vũ Thị Ngân Thảo., 2020. Phân bố ứng suất và xu hướng dịch trượt của đứt gãy khi bị tác động bởi bơm ép nước liên quan đến khai thác dầu khí vùng ven biển Tuy Hòa tới Vũng Tàu. Tạp chí ĐỊA CHẤT, loạt A, số 373-374/2020, tr. 115-136.
Nguyen Hong Phuong., Bui Cong Que., Vu Van Phong., Pham The Truyen., 2020. Scenario-based tsunami hazard assessment for the coast of Vietnam from the 1090 Meridian fault zone. Vietnam Journal of Marine Science and Technology; Vol. 21, No. 4; 2021: 449–470. DOI: https://doi.org/10.15625/1859-3097/17023.
- Patents (list):
- Technological products (describe in details: technical characteristics, place):
Supported for 01 doctoral student to successfully achieve PhD degree at Graduate University of Science and Technology in 2021. Code number: GUST/TS 378. Licence number and Book: TS/30/2021/ESS/11. |
| Research region | Institute of Geophysics, Vietnam Academy of Science and Technology. |
| Recommendations | The substantial seismic data collected at earthquake observation stations must be used to further studying the anisotropic structure beneath Indochina and the adjacent regions. |
| Images of project |  |