deposito di benua timur
Asia
Japan, Oman
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
Afrika
South Africa
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
Eropah
France, Germany, Italy
England, France, Germany, Spain, United Kingdom
lain
pulau hawaii, mid-Atlantik ridge
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deposito di benua Barat
Amerika Utara
Canada, USA
Canada, USA
Amerika Selatan
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Kolumbia
deposito di oceania benua
Australia
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Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula