deposito di benua timur
Asia
Japan, Oman
China, India, Russia, Saudi Arabia, South Korea
Afrika
South Africa
Egypt, Ethiopia, Kenya, Madagascar, Morocco, South Africa
Eropah
France, Germany, Italy
England, Finland, France, Spain, United Kingdom
lain
pulau hawaii, mid-Atlantik ridge
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deposito di benua Barat
Amerika Utara
Canada, USA
Canada, USA
Amerika Selatan
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Argentina, Kolumbia
deposito di oceania benua
Australia
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Central Australia, Western Australia