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Sm-Nd systematics of chondrites

Amelin, Yuri; Rotenberg, E

Description

We have studied the147Sm-143Nd and146Sm-142Nd isotopic systems in phosphate fractions and chondrules from six ordinary chondrites and one carbonaceous chondrite, previously dated with Pb-Pb method.147Sm/144Nd ratios vary between 0.182 and 0.191 in phosphates, and between 0.179 and 0.243 in chondrules. The147Sm-143Nd isochron regression through all 34 phosphate and chondrule analyses yields a date of 4588±100 Ma and is in good agreement with more precise Pb-Pb dates of the same chondrites. The...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
URI: http://hdl.handle.net/1885/36083
Source: Earth and Planetary Science Letters
DOI: 10.1016/j.epsl.2004.04.025

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