河水中次生方解石沉淀的证据 (IMAGE) Science China Press Caption (A)悬浮物中Ca/Na比值与方解石饱和指数之间的关系;(B)悬浮物中Ca/Na比值与碳酸盐岩来源阳离子以及河水Ca离子之间的关系;(C)悬浮物中Ca/Na比值与沉淀损失的Ca之间的关系 Credit ©《中国科学》杂志社 Usage Restrictions Use with credit. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.