deposito di benua timur
Asia
Russia
Japan, Oman
Afrika
South Africa, Western Africa
South Africa
Eropah
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France, Germany, Italy
lain
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pulau hawaii, mid-Atlantik ridge
deposito di benua Barat
Amerika Utara
Canada, USA
Canada, USA
Amerika Selatan
-
-
deposito di oceania benua
Australia
Central Australia, Western Australia
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