deposito di benua timur
Asia
Japan, Oman
-
Afrika
South Africa
-
Eropah
France, Germany, Italy
France, Greece, Romania, Scotland, Spain
lain
pulau hawaii, mid-Atlantik ridge
-
deposito di benua Barat
Amerika Utara
Canada, USA
USA
Amerika Selatan
-
Argentina, Bolivia, Chili, Kolumbia, Ekuador, peru, venezuela
deposito di oceania benua
Australia
-
New Zealand, South Australia, Western Australia