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Year 2026
 
Vol 67, Issue 3, [06 - 2026]

Grain size and mineral characteristics of surface sediments surrounding Vinh Thuc island, Northern East Sea and their implications for the sediment

DOI:10.46326/JMES.2026.67(3).04

  • Affiliations:

    1 Faculty of Geosciences and Geology Engineering, Hanoi University of Mining and Geology, Hanoi, Vietnam
    2 Research Group of Tectonics and Geodynamics for Geo-resources, Environment and Sustainable Development (TGREEN), Hanoi University of Mining and Geology, Hanoi, Vietnam
    3 VietPhuong Group, Vietnam
    4 Northern Center for Planning and Investigation of Marine Resources - Environment, Vietnam
    5 Publishing Office, Hanoi University of Mining and Geology, Hanoi, Vietnam

  • *Corresponding:
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  • Received: 26th-Nov-2025
  • Revised: 16th-Mar-2026
  • Accepted: 5th-Apr-2026
  • Online: 1st-June-2026
Pages: 44 - 53
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Abstract:

The marine area surrounding Vinh Thuc Island (Quang Ninh Province, Northern East Sea) is an area with complex sea-floor morphology, with a tendency to gradually sink from North to South. While the northern part of the island, adjacent to the mainland, is mainly shallow estuarine alluvial flats, the southern part of the island is steeper and is divided by the Cua Dai area with the depth 25 m, creating a basin-shaped topography. Surface sediments in this region are used to reflect grain size and mineral characteristics and their implications for the marine sediment environment The results of grain size and mineralogy analysis show that the surface sediments of Vinh Thuc island include 14 different sediment groups: muddy sandy gravel, sand, gravelly sand, gravel mixed sand, gravelly muddy sand, gravel mix muddy sand, muddy sand, silty sand, gravel mix sandy mud, muddy, gravelly mud, sandy silt and silt. They are dominated by quartz (23.15÷98.20 %), shell fragments (0.07÷60.77 %), rock fragments (0.06÷16.80 %), little feldspar. This indicates that surface sediments can come from continent origins. The distribution of surface sediment fields is relatively complex: fine-grained sediments occupy a large area at the terrain is relatively simple and are distributed mostly in the study area, while coarse-grained sediments are distributed in a small area and scattered in some areas with strong hydrodynamic energy such as river mouths, channel mouths, and creeks (Cua Dai). This result confirms the important role of seabed topography and hydrodynamic regime in the differentiation of surface sediments.

How to Cite
., B.Van Phan, , ., Long, H.Van, Le, T.Anh, ., H.Thanh Tran, ., H.Huu Nguyen, ., H.Vinh Bui, ., D.Anh Vu and Nguyen, H.My Thi 2026. Grain size and mineral characteristics of surface sediments surrounding Vinh Thuc island, Northern East Sea and their implications for the sediment (in Vietnamese). Journal of Mining and Earth Sciences. 67, 3 (Jun, 2026), 44-53. DOI:https://doi.org/10.46326/JMES.2026.67(3).04.
References

Do, T. C. (2017) "Investigation of geomorphology, geology, minerals of some large and important islands and island clusters" at a scale of 1:50,000, belonging to Component Project 2: "Investigation of geomorphology, geology, minerals of some large and important islands and island clusters". Center for Planning and Investigation of Natural Resources and Environment in the Northern region. (in Vietnamese).

Folk, R. L., (1974). Petrology of Sedimentary Rocks, Austin, Texas: Hemphill Press, 182p.

Hoang, V. L. (2017). Mapping the surface sediments of the Co To - Vinh Thuc island cluster, part of the project: Basic investigation of resources and environment of some large and important islands and island clusters to serve the planning of marine economic development and protection of territorial sovereignty. (in Vietnamese).

Nguyen, B. (2005). Report "Investigation of geological characteristics, geodynamics, mineral geology, environmental geology and forecasting of geological hazards in Vietnam's sea areas at a scale of 1:500,000". Northern Region Center for Planning and Investigation of Natural Resources and Environment. (in Vietnamese).

Rukhin, L. B. (1969). Cơ sở trầm tích luận (bản tiếng Nga). Nhà xuất bản Kỹ thuật Quốc gia Moscow.

Trinh, N. T. (2008). Investigation of geological characteristics, geodynamics, mineral geology, environmental geology and forecasting of geological hazards in the Hai Phong - Quang Ninh sea area from 0÷30 m water at a scale of 1:100,000 and the key sea area of ​​Bach Long Vi at a scale of 1:50,000. Belonging to the project: Investigation of geological characteristics, geodynamics, mineral geology, environmental geology and forecasting of geological hazards in Vietnam's sea areas. Center for Planning and Investigation of Natural Resources and Environment in the Northern region. (in Vietnamese).

Wentworth, C. K. (1922). A scale of grade and class terms for clastic sediments. The Journal of Geology, 30(5), 377-392.

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