deposito di benua timur
Asia
China, India, Russia, Saudi Arabia, South Korea, Sri Lanka
Japan, Oman
Afrika
South Africa, Western Africa
South Africa
Eropah
United Kingdom
France, Germany, Italy
lain
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pulau hawaii, mid-Atlantik ridge
deposito di benua Barat
Amerika Utara
Canada
Canada, USA
Amerika Selatan
Brazil, Kolumbia, Paraguai
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deposito di oceania benua
Australia
Central Australia, Western Australia
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