deposito di benua timur
Asia
Japan, Oman
-
Afrika
South Africa
Namibia, Uganda
Eropah
France, Germany, Italy
Germany, Hungary, Italy, Portugal, Spain
lain
pulau hawaii, mid-Atlantik ridge
-
deposito di benua Barat
Amerika Utara
Canada, USA
USA
Amerika Selatan
-
-
deposito di oceania benua
Australia
-
New Zealand, Western Australia