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Geology
Geology - Yukon Territory
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Geology -- Australia -- Otway Basin (Vic. and SA)
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Petroleum -- Geology -- Australia -- Otway Basin (Vic. and SA)
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Petroleum -- Prospecting
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Petrology--Canada--Alberta
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QE 691 L68 1985
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QE656.T2
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Rifts (Geology)
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Rock
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Rocks
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Sedimentology--Canada--Alberta
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Siliceous
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Stratigraphic - Mesozoic
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Stratigraphic -- Cretaceous
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Stratigraphic--Cambrian
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