Significance of the Presence of Exchangeable Magnesium Ions in Acidified Clays

See allHide authors and affiliations

Science  01 Apr 1960:
Vol. 131, Issue 3405, pp. 988-990
DOI: 10.1126/science.131.3405.988


Magnesium ions (Mg++) were shown to constitute a substantial percentage of the total exchangeable cations in acidified clay samples from various sources. This finding helps in solving several problems of long standing in the fields of soil chemistry, soil formation, and geochemical weathering.