deposito di benua timur
Asia
China, India, Turkey
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
Afrika
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Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Eropah
Belgium, France, Germany, Italy, Norway, Portugal, Spain, United Kingdom
Bulgaria, England, Germany, Norway, Romania, Switzerland
lain
arktik
-
deposito di benua Barat
Amerika Utara
USA
USA
Amerika Selatan
Brazil
Brazil, Chili
deposito di oceania benua
Australia
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New Zealand, Queensland, South Australia, Western Australia