• 责任者：Xu Zhaokai (Laboratory of Marine Geology and Environment ; Institute of Oceanology ; Chinese Academy of Sciences ; Qingdao 266071 ; China) ; Li Anchun
• 刊名：Earth Science
• 出版年：2008
• 卷期：33(3)
• 关键词：锰结核 ; manganese nodules ; 多金属结核 ; polymetal crust ; 菲律宾海 ; Phillipine Sea
• 页码：p.329-336
• 图表：2 illus., 3 tables, 28 refs.
• 分类号：0200
• issnNo：ISSN1000-2383
• isbnNo：CN42-1233/P

To understand the elemental occurrence phases in the new-type ferromanganese crusts from the East Philippine Sea, chemical extraction method has been utilized to analyze the occurrence phases in three crusts. The occurrence phases of metallic elements and rare earth element (REE)in different types of crusts are coherent as a whole, indicating that they were formed in similar geologic and oceanic conditions. Among the metallic elements, Fe and Cu mainly concentrate in the residual phase, while Mn, Co and Ni mainly concentrate in the manganese oxide phase, organic phase and residual phase. The REE contents in the carbonate phase and organic phase are only about 1% of the total REE respectively, which indicates that they have little impact on the enrichment of REE in the crusts.