Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published July 2012 | Published
Journal Article Open

Evidence for Unfractionated Magnesium Isotopes in Genesis SOS Wafers

Abstract

Oxygen isotopes measured by MegaSIMS on Genesis Concentrator samples indicate a solar wind (SW) oxygen isotope composition that is related to the ^(16)O-enriched CAI composition by a large mass dependent fractionation [I]. Isotope fractionation during acceleration of the solar wind is expected to create such a large mass fractionation, but a direct test of the presence of mass fractionation in the solar wind has not been possible with sufficient precision. Unlike O and Ne, Mg isotopes are sufficiently uniform in chondrites, terrestrial samples, and other meteoritic and planetary materials from the inner solar system [2], and so offer the best opportunity for a precise (±1‰) test of the Coulomb Drag mechanism for solar wind isotope fractionation.

Additional Information

© 2012 Meteoritical Society. Issue published online: 6 Aug 2012. Article first published online: 8 Aug 2012.

Attached Files

Published - A9R9105.pdf

Files

A9R9105.pdf
Files (500.9 kB)
Name Size Download all
md5:4c8b7d1ac36091f3ee06ecd7791980a6
500.9 kB Preview Download

Additional details

Created:
August 22, 2023
Modified:
October 19, 2023