Seamounts. Characteristics, formation, mineral deposits and
biodiversity (National Institute of Oceanography (Council of
Scientific & Industrial Research))Mehta, C.M. (Oil and Natural
Gas Comissions)Das, P. (National Institute of Oceanography
(Council of Scientific & Industrial Research))Kalangutkar, N.G.
(National Institute of Oceanography (Council of Scientific &
Industrial Research)) ||Seamounts represent crust-mantle
activities and are areas of petrological deviations,
biodiversity, seismicity and hydrothermal events. An estimated
~50 million tons/year of basalts are required to produce
seamounts suggesting intense oceanic volcanism. Seamounts either
occur as chains perpendicular to the ridge or as isolated
entities or in clusters. Seamounts may host basalts,
hyaloclastites, gabbros and serpentinites and these variants
perhaps evolve from multiple melting domains as a consequence of
large-scale thermal structure and mantle lithology. Nonhotspot
seamounts on a young, thin and hot lithosphere host tholeiite