Ce isotope ratios of N-type MORB

Online Access: Get full text
doi: 10.1016/0009-2541(94)90166-X
Author(s): Makishima, Akio; Masuda, Akimasa
Author Affiliation(s): Primary:
Okayama University, Pheasant Memorial Laboratory, Misasa, Japan
University of Electro-Communications, Tokyo, Japan
Volume Title: Chemical Geology
Source: Chemical Geology, 118(1-4), p.1-8. Publisher: Elsevier, Amsterdam, Netherlands. ISSN: 0009-2541 CODEN: CHGEAD
Note: In English. 34 refs.; illus., incl. 3 tables, sketch map
Summary: 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 (εCe = -1.6) to 0.0225633 (εCe = -1.0). Averages of εCe and εNd of N-type MORB were -1.4 and 9.5, respectively. The average of εCe is quite different from previous estimates. We propose that εCe = -1.4 should be used as the typical MORB Ce isotope ratio in future studies.
Year of Publication: 1994
Research Program: DSDP Deep Sea Drilling Project
Key Words: 02 Geochemistry; 05 Petrology, Igneous and Metamorphic; Alkaline earth metals; Atlantic Ocean; Basalts; Ce-142/Ce-138; Cerium; Costa Rica Rift; Deep Sea Drilling Project; East Pacific; East Pacific Rise; Igneous rocks; Isotope ratios; Isotopes; Metals; Mid-Atlantic Ridge; Mid-ocean ridge basalts; Mid-ocean ridges; N-type basalts; Nd-144/Nd-143; Neodymium; Pacific Ocean; Rare earths; Sr-87/Sr-86; Stable isotopes; Strontium; Trace elements; Volcanic rocks
Record ID: 1995010961
Copyright Information: GeoRef, Copyright 2017 American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands

Similar Items