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
United Kingdom
lain
pulau hawaii, mid-Atlantik ridge
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Amerika Utara
Canada, USA
USA
Amerika Selatan
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Kolumbia
deposito di oceania benua
Australia
-
Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula