marine lysocline 2010-03-16T12:16:11Z ENVO ENVO:01000079 ORCID:0000-0002-4366-3088 The marine lysocline denotes the depth in the ocean below which the rate of dissolution of calcite increases dramatically. As water column depth and therefore pressure increases, the corresponding calcite saturation of seawater decreases and the calcite begins dissolve. lysocline