南海中部海水中的碳酸盐体系
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摘要: 作者通过测定海水样品中的pH值和总碱度,结合温、盐、深资料,计算了南海中部海水中碳酸盐体系的各组分(HCO3-、CO32-、CO2、ΣCO2和Pco2),并对其分布特征进行了初步的分析.同时也估算了调查海区中方解石和文石的饱和度(Ω).表层海水中Ω方和Ω文分别约为5.8和3.9.方解石和文石的饱和深度分别出现在2200m和1200m左右.调查海区中碳酸钙的溶跃层可能出现在3000-4000m的水层之间,其相应的方解石饱和度约为0.78.
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