Record Details

Oceans: Geochemistry and mineral resources

DRS at CSIR-National Institute of Oceanography

View Archive Info
 
 
Field Value
 
Title Oceans: Geochemistry and mineral resources
 
Creator Joao, H.M.
Paropkari, A.L.
 
Subject mineral resources
placers
ferromanganese noudles
exclusive economic zone
gas hydrates
underwater exploration
geochemistry
 
Description With increased exploitation of the onshore mineral resources, oceans that cover almost 71% of earth's surface and known as storehouse of minerals, provide a suitable alternative. Amongst the various underwater mineral resources, placer deposits, phosphorites, manganese nodules and encrustations, metalliferous sediments and hydrothermal sulphides are well studied. A variety of mineral deposits are known to occur within the EEZ of India. These include placer deposits along the east and west coast of India, phosphorite deposits off Goa and off Chennai, hydrothermal sulphides in the Andaman Basin. The polymetallic nodules from the Central Indian Basin have been studied in detail and as a result India was recognized as a pioneer investor. Further, Indian became the first country to have been allocated exclusive rights of exploration in the pioneer area in the Central Indian Ocean Basin. Presently world wide some of the near-shore deposits are being exploited. However, the mining for other mineral resources on the continental margins as in deep sea is currently uneconomical. With further depletion of onshore resources and advancement in technology, the mining of these resources may also become a reality in the near future.
 
Date 2008-08-03T10:38:33Z
2008-08-03T10:38:33Z
2002
 
Type Journal Article
 
Identifier Journal of Applied Geochemistry, Vol. 4(2); 194-211p.
http://drs.nio.org/drs/handle/2264/1347
 
Language en