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Based on the analytical results for 101 samples from 50 survey spots,this paper describes the changesin ratios of various components in calcium carbonate from the sea area at the Pearl River mouth with pH.Relations of ∑CO_2 with salinity,and Ca concentration with salinity in different parts of the river mouth havebeen established.The annual throughput of Ca from the Pearl River and the saturation degrees of calciteand aragonite have been calculated.
Based on the analytical results for 101 samples from 50 survey spots, this paper describes the changes in ratios of various components in calcium carbonate from the sea area at the Pearl River mouth with pH. Relations of ΣCO_2 with salinity, and Ca concentration with salinity in different parts of the river mouth havebeen established. The annual throughput of Ca from the Pearl River and the saturation degrees of calcite and aragonite have been calculated.