deposito di benua timur
Asia
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Afrika
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Uganda
Eropah
England, France, Germany, Great Britain, Netherlands, Sweden, Switzerland, United Kingdom
Germany, Hungary, Italy, Spain
lain
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tanah penggembalaan, mid-Atlantik ridge
deposito di benua Barat
Amerika Utara
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USA
Amerika Selatan
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Bolivia, Brazil
deposito di oceania benua
Australia
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New South Wales, New Zealand, Queensland, South Australia, Western Australia