(Table 40-4) Speciations of chemical elements in bottom sediments from Core A...

Fractions of element occurrences: 1 - bound with CaCO3 and sorbed; 2 - bound with hydroxides of Fe and Mn; 3 - bound with organic matter and sulfides; 4 - bound with lithogenic...元素赋存形态占比：1- 与碳酸钙结合及吸附态；2- 与铁、锰氢氧化物结合态；3- 与有机质及硫化物结合态；4- 与岩源成因结合态……