FORMATION OF CARBONATE IN THE SURFACE SEDIMENTS IN THE NORTHERN PART OF THE EAST CHINA SEA

There exists abundant carbonate in theIts maximum content of the whole volume.accounts for 51.2 % ofsurface sediments of the East China Sea.the whole weight of the samples or 70% T his article deals contents in the four with some problems about carbonate, such parts(bulk sam ple,coarse-m edian-sand frac-of as the variation tion, fine-sand one and silt-mud one),logical form and the principal factors the distributive pattern,the mineral and bio-affecting its formation.