deposito di benua timur
Asia
China, India, Indonesia, Kazakhstan, Russia, South Korea, Thailand, Turkey
Japan, Oman
Afrika
Morocco, South Africa
South Africa
Eropah
Finland, France, Georgia, Germany, Great Britain, Italy, Kazakhstan, Netherlands, Norway, Spain, Switzerland
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
Argentina, Brazil, Kolumbia, Ekuador, venezuela
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deposito di oceania benua
Australia
New Zealand, Western Australia
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