deposito di benua timur
Asia
Azerbaijan, China, Russia
Japan, Oman
Afrika
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South Africa
Eropah
Austria, Belgium, Cyprus, Denmark, France, Germany, Italy, Malta, Netherlands, Poland, Portugal, Romania, Spain, Sweden, Switzerland, Turkey, Ukraine, United Kingdom
France, Germany, Italy
lain
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pulau hawaii, mid-Atlantik ridge
deposito di benua Barat
Amerika Utara
USA
Canada, USA
Amerika Selatan
Bolivia
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deposito di oceania benua
Australia
New Zealand, South Australia
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