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From Ancient Greek λύσις (lúsis, loosening, breaking loose) + -cline.


lysocline (plural lysoclines)

  1. The depth in the ocean below which solubility of calcium carbonate (CaCO3) increases dramatically.
    • 2009, January 16, “R. W. Wilson et al.”, in Contribution of Fish to the Marine Inorganic Carbon Cycle[1], volume 323, number 5912:
      The causes of CaCO3 dissolution above the lysocline are subject to debate and have been attributed to (i) dissolution in zooplankton guts; (ii) dissolution in microenvironments where bacterial oxidation of organic matter enhances this process; and (iii) dissolution of more soluble forms of CaCO3, including pteropods and high-magnesium calcite.