deposito di benua timur
Asia
China, India, Kazakhstan, Mongolia, Russia
Japan, Oman
Afrika
Namibia, Nigeria, South Africa
South Africa
Eropah
Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom
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
Brazil, venezuela
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deposito di oceania benua
Australia
New South Wales, New Zealand
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