CSIR-National Institute of Oceanography,Dona Paula,Goa 403004,India;
Marine Science,School of Earth,Ocean and Atmospheric Sciences,Goa University,Goa 403206,India;
Formerly with CSIR-National Institute of Oceanography,Dona Paula,Goa 403004,India;
CSIR-National Geophysical Research Institute,Hyderabad,Telangana 500007,India;
Department of Earth Science,Pondicherry University,Pondicherry 605014,India;
Fe-rich spherules; deep-sea sediments; hydrovolcanic activity; CIOB;