Calcium and Bromide Contents of Natural Waters

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Science  30 Sep 1966:
Vol. 153, Issue 3744, pp. 1637-1638
DOI: 10.1126/science.153.3744.1637


The linear relation observed in a log Ca++ versus log Brplot for subsurface Cl- waters is attributed to ultrafiltration by shale of sea water and fresh water that have passed through sedimentary rocks since their formation. Reactions between these solutions and sedimentary minerals, particularly dolomitization, must have contributed additional Ca++ to solution.