(Table 1, page 21) Sampling sites and lake ore types

Grain size distribution was determined by sieving.From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical...采用筛分法测定粒度分布。1983年至1989年间，NOAA-NCEI从期刊论文、技术文献（原文此处存在省略）中汇编了NOAA-MMS海洋矿物地球化学数据库。