deposito di benua timur
Asia
Japan, Oman
China, India
Afrika
South Africa
Morocco, Namibia
Eropah
France, Germany, Italy
Austria, Italy, Romania, Spain, Switzerland
lain
pulau hawaii, mid-Atlantik ridge
-
deposito di benua Barat
Amerika Utara
Canada, USA
Mexico, USA
Amerika Selatan
-
Brazil, Kolumbia
deposito di oceania benua
Australia
-
New South Wales, Queensland, Yorke Peninsula