1994年12月5日
Ce isotope ratios of N-type MORB
Chemical Geology
- ,
- 巻
- 118
- 号
- 1-4
- 開始ページ
- 1
- 終了ページ
- 8
- 記述言語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/0009-2541(94)90166-X
Isotope ratios of Ce, Nd and Sr, and light rare-earth elements (La, Ce, Nd and Sm) concentrations were measured for sixteen N-type MORB samples from DSDP Sites 420, 421, 429, 597B and 597C (East Pacific Rise), 504B (Costa Rica Rift), and 395, 519A, 522B, 562 and 564 (Mid Atlantic Ridge). All the samples were confirmed as N-type MORB based on Nd and Sr isotope ratios, and LREE patterns. The Ce isotope ratios ranged from 0.0225616 (ε{lunate}Ce = - 1.6) to 0.0225633 (ε{lunate}Ce = - 1.0). Averages of ε{lunate}Ce and ε{lunate}Nd of N-type MORB were - 1.4 and 9.5, respectively. The average of ε{lunate}Ce is quite different from previous estimates. We propose that ε{lunate}Ce = - 1.4 should be used as the typical MORB Ce isotope ratio in future studies. © 1994.
- リンク情報
- ID情報
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- DOI : 10.1016/0009-2541(94)90166-X
- ISSN : 0009-2541
- SCOPUS ID : 0028608558