deposito di benua timur
Asia
China, India
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
Afrika
Angola, Egypt, Madagascar, Namibia, Nigeria
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
Eropah
Germany, Iceland, Ireland, Italy, Spain, United Kingdom
United Kingdom
lain
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deposito di benua Barat
Amerika Utara
Canada, USA
USA
Amerika Selatan
Argentina, Bolivia, Brazil, Kolumbia, Ekuador
Kolumbia
deposito di oceania benua
Australia
Central Australia, Queensland, Western Australia
Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula