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east asia(3)
emission factors(3)
emission inventories(3)
emission inventory(3)
isotopic composition(3)
mass extinction(3)
neodymium(3)
permian-triassic boundary(3)
pm2.5(3)
rare earth element(3)
seawater(3)
sediment(3)
soil moisture(3)
strontium isotope(3)
structural geology(3)
sulfate(3)
sulfur compounds(3)
sulfur dioxide(3)
tectonics(3)
trace elements(3)
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