elemental abundances of major ( ti , al , fe , and ca ) , minor ( na , mn , and cr ) , and trace elements [ 14 rare-earth elements ( ree ) , y , in , cd , rb , cs , ba , co , and sc ] in lunar anorthosites separated from apollo 11 sample 10085 coarse fines have been determined by means of instrumental and radiochemical neutron activation analysis .
C0013879
elemental
C0025556
rare-earth elements