摘要
This special issue is attributed to the IGCP-649 Project. The IGCP-649 Project “Diamonds and Recycled Mantle” is an International Geosciences Program sponsored by UNESCO (the United Nations Educational, Scientific and Cultural Organization) and IUGS (International Union of Geological Sciences), is a global research project, aimed to carry out extensive and systematic research on peridotites, chromitites and related ma-terials such as diamond, moissanite and other unusual minerals, from different ophiolites in global orogenic belts, in order to understand the formation and origin of deep-mantle minerals in oceanic lithosphere, the origin of carbon for the ophiolitehosted diamonds, the evolution of Earth's mantle and the dy-namic process of ophiolite emplacement.