Asia
Bangladesh, China, India, Russia
Japan, Oman
Afrika
Ethiopia, Kenya, Morocco, South Africa, Tanzania
South Africa
Eropah
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
France, Germany, Italy
lain
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pulau hawaii, mid-Atlantik ridge
Amerika Utara
USA
Canada, USA
Amerika Selatan
Bolivia, Chili, Kolumbia, Ekuador, peru, venezuela
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deposito di oceania benua
Australia
New South Wales, New Zealand, Queensland, Victoria, Western Australia
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