占地球表面70％的海底多被各类沉积物所覆盖,而自生矿物就广泛存在于这些沉积物中,甚至可单独分出一类“海底自生沉积”。自生矿床(如储量极其丰富的铁锰结核)在海底矿物资源中愈益显示出其重要性,因此,自生矿物的研究对阐明现代海底沉积物和矿床的物质组成、成矿过程、成矿条件等方面均具有重要的现实意义。 More than 70% of the Earth’s surface is covered by various types of sediments, and authigenic minerals are widely found in these sediments, and even a separate type of “submarine spontaneous sediment.” Authigenic deposits, such as iron-manganese nodules, which are extremely rich in reserves, have increasingly shown their importance in seabed mineral resources. Therefore, the study of authigenic minerals is of great importance in elucidating the material composition, mineralization process and metallogenic conditions of modern seafloor sediments and deposits All have important practical significance.