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all geography including DSDP/ODP Sites and Legs
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Africa
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Central Africa
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Congo (1)
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East Africa
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Ethiopia (1)
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East African Lakes
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East African Rift (1)
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Limpopo Basin (1)
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North Africa
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Egypt
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Nile Delta (2)
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Southern Africa
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Botswana (1)
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South Africa
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Cape Province region (1)
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Eastern Cape Province South Africa
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Gauteng South Africa
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Johannesburg South Africa (1)
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West Africa
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Nigeria
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Antarctica
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Italy
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Voronezh Russian Federation (1)
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Western Europe
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Front Range (1)
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Indian Ocean
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Oceania
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Pacific Ocean
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Southeast Pacific (1)
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North Pacific
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Northwest Pacific
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South China Sea
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South Pacific
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West Pacific
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North America
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Ocean Drilling Program
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Leg 112 (1)
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Leg 184
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ocean floors (13)
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Oceania
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oil and gas fields (34)
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Paleozoic
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Upper Cambrian
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Carboniferous
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Upper Devonian
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Knox Group (1)
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Ordovician
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Upper Ordovician
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Permian
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Lower Permian
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Upper Permian
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Silurian
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Llandovery (1)
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Precambrian
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South America
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