deposito di benua timur
Asia
-
-
Afrika
Ethiopia, Ghana, Western Africa
Uganda
Eropah
England
Germany, Hungary, Italy, Spain
lain
-
tanah penggembalaan, mid-Atlantik ridge
deposito di benua Barat
Amerika Utara
Canada, USA
USA
Amerika Selatan
Argentina, Bolivia, uruguay
Bolivia, Brazil
deposito di oceania benua
Australia
Central Australia, South Australia, Western Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia