deposito di benua timur
Asia
India, Russia
Japan, Oman
Afrika
South Africa
South Africa
Eropah
Germany, Greece, Italy, Scotland, Turkey
France, Germany, Italy
lain
tanah penggembalaan
pulau hawaii, mid-Atlantik ridge
deposito di benua Barat
Amerika Utara
Canada, USA
Canada, USA
Amerika Selatan
Brazil, Kolumbia, venezuela
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deposito di oceania benua
Australia
New Zealand, Queensland
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