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ABRUPT CLIMATE-CHANGE
1
CHONDRITIC IMPACTOR
1
CRETACEOUS-TERTIARY BOUNDARY
1
Clovis
1
Earth and Environmental Sciences
1
GREENLAND ICE
1
ISOTOPIC COMPOSITION
1
K-T BOUNDARY
1
MASS-SPECTROMETRY
1
METEORITIC NANODIAMONDS
1
Os isotopes
1
PLATINUM-GROUP ELEMENTS
1
Pleistocene extinction
YOUNGER DRYAS
1
meteorite
1
platinum group elements
1
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