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Aluminium oxide
2
Area/locality
2
Barium
2
Beryllium
Caesium
2
Calcium oxide
2
Cerium
2
Chromium
2
Cobalt
2
Europium
2
Event label
2
Gadolinium
2
Gallium
2
Lanthanum
127
1
1989)
1
214
1
227
1
238
1
300
1
301
1
306
1
316
1
326
1
519
1
520
1
535
1
544
1
Arkell Cirque
1
Barium/Niobium ratio
1
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