Hyblean peridotites contain abundant LREE and other trace elements (B, Sr, P, Th, U, Pb).
Serpentine veins in a Hyblean peridotite have chondritic to sub-chondritic REE compositions and a modest FME enrichment.
Hyblean peridotites and hydrothermal clays are akin to abyssal peridotites (MRI) and hydrothermal sediments from MAR.
Cl-rich supercritical fluids can mobilize LREE, HFSE and other trace elements.
Serpentinization-related hydrothermal fluids are the main metasomatic agents in Hyblean and abyssal peridotites.