caa a22 4500 469111232 CHVBK 20180323133111.0 cr unu---uuuuu 170328e19920401xx s 000 0 eng 10.1007/BF02034785 doi (NATIONALLICENCE)springer-10.1007/BF02034785 Rare earth element patterns in ultramafic rocks of the Schist Belt of Southwestern Nigeria by instrumental neutron activation analysis [Elektronische Daten] [O. Asubiojo, O. Ige] 24 Ultramafic rock samples from 3 different areas of the Schist Belt of Southwestern Nigeria were analyzed for 11 rare earth elements (REE) by instrumental neutron activation analysis (INAA). REE patterns of the ultramafic rocks are similar for the 3 different areas, and the REE abundances are smaller than for other types of rocks from the same areas. However, the moderate fractionation between LREE and HREE observed for these samples is unusual for ultramafic rocks. Some geochemical implications of the results are discussed. Akadémiai Kiadó, 1992 Asubiojo O. Department of Chemistry, Obafemi Awolowo University, Ile-Ife, (Nigeria) aut Ige O. Natural History Museum, Obafemi Awolowo University, Ile-Ife, (Nigeria) aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 158/1(1992-04-01), 193-200 0236-5731 158:1<193 1992 158 10967 https://doi.org/10.1007/BF02034785 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02034785 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Asubiojo O. Department of Chemistry, Obafemi Awolowo University, Ile-Ife, (Nigeria) aut NATIONALLICENCE 700 1- Ige O. Natural History Museum, Obafemi Awolowo University, Ile-Ife, (Nigeria) aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 158/1(1992-04-01), 193-200 0236-5731 158:1<193 1992 158 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer