1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
India, Kazakhstan, Kuwait, Russia, South Korea, Thailand, Turkey
1.1.2 Afrika
Ethiopia, Morocco, South Africa
1.1.3 Eropah
France, Germany, Italy, Norway, Scotland
1.1.4 lain
tanah penggembalaan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
Canada, Costa Rica, Panama, USA
1.2.2 Amerika Selatan
Argentina, Brazil, Kolumbia, Ekuador
1.3 deposito di oceania benua
1.3.1 Australia
Central Australia, New Zealand, Queensland