deposito di benua timur
Asia
Japan, Oman
India, Kazakhstan, Kuwait, Russia, South Korea, Thailand, Turkey
Afrika
South Africa
Ethiopia, Morocco, South Africa
Eropah
France, Germany, Italy
France, Germany, Italy, Norway, Scotland
lain
pulau hawaii, mid-Atlantik ridge
tanah penggembalaan
deposito di benua Barat
Amerika Utara
Canada, USA
Canada, Costa Rica, Panama, USA
Amerika Selatan
-
Argentina, Brazil, Kolumbia, Ekuador
deposito di oceania benua
Australia
-
Central Australia, New Zealand, Queensland