Перспективы разработки подводных россыпей Вьетнама

Abstract

The issues of the relevance of exploration and development of seabed deposits are considered. The article provides information on the history and composition of studies of solid mineral deposits carried out in the South China Sea by scientists of the Democratic Republic of Vietnam. The oceanographic and geological characteristics of the Pacific coast of Vietnam, its shelf and continental slope are given. The conditions that form placer deposits in the exclusive economic zone of Vietnam are given, and their brief description is given. Examples of various placers in the shelf zone, their features are given, and schematic diagrams of occurrence are given. The dependence of the littoral width on the height of the tidal wave and the angle of inclination of the shelf is analyzed. Proposals are given on the possibility of developing alluvial deposits in the littoral zone using dry drilling equipment, the advantages and disadvantages of this technology are stated. The features of the influence of climatic conditions of the Pacific coast of Vietnam on the use of hydromechanized technologies in the development of underwater placers are noted. Emphasis is placed on maintaining the ecological balance in the fields of development and the continuation of further research in the South China Sea.