deposito di benua timur
Asia
Japan, Oman
India, Russia
Afrika
South Africa
South Africa
Eropah
France, Germany, Italy
Germany, Greece, Italy, Scotland, Turkey
lain
pulau hawaii, mid-Atlantik ridge
tanah penggembalaan
deposito di benua Barat
Amerika Utara
Canada, USA
Canada, USA
Amerika Selatan
-
Brazil, Kolumbia, venezuela
deposito di oceania benua
Australia
-
New Zealand, Queensland