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