Research History and Key Areas in Ironsand Studies
摘要
This chapter is divided into three sections. Sections 2.1 and 2.2 provide a chronological review of marine sand deposit research prior to the year 2000. Sections 2.3–2.9 outline the post-2000 research progress, highlighting unresolved or insufficiently studied issues that are discussed in greater depth in subsequent chapters. Section 2.10 focuses on the global distribution of titanium resources and the development status of the titanium industry.