The samples studied through this research were collected from
active black smokers located in the mid-oceanic ridge from a depth of
2276m by a sea-born ship “Academician Mstislav Keldysh”(2002), in its 47th
research mission. The collected samples were studied by microscopic,
microprobe and X-ray analysis (Debye-sherer). These samples were in the
form of narrow pipes with zoned structure, w...