Annotated record of the detailed examination of Mn deposits in the Atlantic O...

In addition to the large nodules of manganese dioxide that pave some regions of the ocean floor, much finely divided (<1 mm) manganese dioxide occurs within the sediment...除铺覆部分海底区域的大型二氧化锰结核外，尚有大量粒径小于1毫米的细分散二氧化锰赋存于沉积物中……