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1. Full name: Dinh Xuan Thanh
2. Sex: male
3. Date of birth: 27/12/74
4. Place of birth: Nghe An
5. Admission decision number: 2259/SĐH Dated 07/12/2006
6. Changes in academic process: no
7. Official thesis tile: Evolution of Pliocene-Quaternary sediment on the continental shelf from Quang Nam to Binh Thuan.
8. Major: Petrology
9. Code:62 44 57 01
10. Supervisors: 1) Prof. Dr. Tran Nghi; 2) Dr. Doan Dinh Lam
11. Summary of the new findings of the thesis:
Based on the synthesis and analysis of the sequence stratigraphic models in the world and analyzing the characteristics of sedimentary Pliocene - Quaternary on the study area, Sequence stratigraphic model of Coe. A. L. et al, 2003 is applied for reaseaching Pliocene - Quaternary sedimentary evolutionary on the continental shelf from Quang Nam to Binh Thuan. The main results show that the evolution of Plioncene - Quaternary sedimentary on the continental shelf, from Quang Nam to Binh Thuan includes 8 cylces upward (N21, N22, N23, Q11, Q12a, Q12b, Q13a, Q13b-Q2) corresponding to 8 cycles of sea level fluctuations. The grain size varies in cyclicity and trends to smaller from forth to eighth cycle. The Pliocene-Quaternary sea level change is horizontal seaward direction. The current continental shelf are built out seaward by tremedous amount of terrigeous sediment, belong to subaqueous deltaic facies, caused by the regressive period of Pliocene - Quaternary sea level change and tectonic uplift on the inner shelf, subsidence on the outer shelf. Fluctuating sea levels from the 5.000 year before to present are the small amplitude fluctuations in the trend of falling sea levels in the larger cycle. Placers of Pliocene - Quaternary sediments mainly are concentrated on the ravinement surface and paleoshoreline zones: 100-120m, 50-60m, 25-30m in water depth.
12. Practical applicability:
Participating in selecting the sequence stratigraphic pattern which is suitable for researching Pliocen - Quaternary sedimentology on the Vietnam continental shelf and coastal plains. Being the scientific fundamental for researching marine mineral geology, geoengineering - geoenvironment and sea level change in Pliocen - Quaternary period in Vietnam.
13. Further research directions: no
14. Thesis-related publications:
Tran Nghi, Nguyen Thanh Lan, Dinh Xuan Thanh, Pham Nguyen Ha Vu, Nguyen Hoang Son, Tran Thi Thanh Nhan (2007), "Quaternary sedimentary cycles in relation to sea level change in Vietnam", VNU Journal of Science, Earth Sciences, (23), pp. 235-243.
Tran Nghi, Dinh Xuan Thanh, Nguyen Thanh Lan, Tran Thi Thanh Nhan, Pham Nguyen Ha Vu (2007), "Quaternary geologycal map of the continental shelf of Vietnam at the scale of 1:1,000,000", Journal of Science, Earth Science, Vietnam National University, Hanoi, T.XXIII (No1), pp. 1-9.
Tran Nghi, Dinh Xuan Thanh, Nguyen Thanh Lan (2007), "Pleistocene - Early-Middle Holocene Transgression on the territory and territorial waters of Vietnam", Journal of Marine Science and Technology, T7 (No3), pp. 1-17.
Tran Nghi, Dinh Xuan Thanh, Nguyen Thanh Lan, Hoang Van Tha (2008), "Characteristics, origin and forming conditions of the coarse material in bottom sediments of the Tonkin Gulf”, Journal of Marine Science and Technology, T8 (No1), pp. 35-44.
Tran Nghi, Dinh Xuan Thanh, Tran Thi Thanh Nhan, Nguyen Dinh Thai (2009), “Sequence stratigraphy of Quaternary depositions on the land and at the continental shelf of Vietnam”, VNU Journal of Science, Earth Science, (25), pp. 32-39.
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