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ACIDIFICATION
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Biological chert
1
DALONG FORMATION
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DEPOSITIONAL-ENVIRONMENTS
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Da-long Formation
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EARTH-ELEMENT GEOCHEMISTRY
1
EVOLUTION
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EXTINCTION
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Energy & Fuels
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Engineering
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Lower Yangtze region
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Petroleum
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RARE-EARTH
1
SICHUAN BASIN
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SOUTH CHINA
1
Siliceous rock
1
TRIASSIC BOUNDARY
1
Volcanism
1
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