deposito di benua timur
Asia
India, Russia
China, Russia
Afrika
South Africa
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Eropah
Germany, Greece, Italy, Scotland, Turkey
Austria, Italy, Portugal, United Kingdom
lain
tanah penggembalaan, mid-Atlantik ridge
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deposito di benua Barat
Amerika Utara
Canada, USA
Canada, USA
Amerika Selatan
Bolivia, Brazil, Kolumbia, venezuela
Argentina, Bolivia, Ekuador
deposito di oceania benua
Australia
New Zealand, Queensland
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