(Table 1, page 168) Iron, manganese, and phosphorus concentrations in Fe-Mn-c...

Fe-Mn-concretions of a spheroidal type were found according to electron probe determinations to consist of alternating iron- and manganese-rich layers. This pattern was ascribed...球状铁锰结核（Fe-Mn concretions）经电子探针（electron probe）检测分析，被证实由富铁层与富锰层交替排布而成，这一结构模式被归因于