Isotopic variations usually follow mass-dependent fractionation, meaning that the relative
variations in isotopic ratios scale with the difference in mass of the isotopes involved (eg …

A compilation of over 1500 Mg‐isotopic analyses of Al‐rich material from primitive solar
system matter (meteorites) shows clearly that 26Al existed live in the early Solar System …

Study of the isotopic variations of calcium is of interest because Ca is important in
geochemical and biochemical processes, and is one of few major cations in rocks and …

In this paper, we review the mineralogy and chemistry of calcium‐aluminum‐rich inclusions
(CAIs), chondrules, FeNi‐metal, and fine‐grained materials of the CR chondrite clan …

Mineralogical observations, chemical and oxygen–isotope compositions, absolute 207Pb–
206Pb ages and short-lived isotope systematics (7Be–7Li, 10Be–10B, 26Al–26Mg, 36Cl …

1. INTRODUCTION may be that much of the early solar nebula consisted of completely
vaporized primordial material (> 1800 K) that cooled monotonically (Cameron, 1963; Kurat …

It is generally believed that most chondrules formed in the protoplanetary disk by melting of
fine-grained solid precursor materials and that during these melting events chondrules …

We have studied the mineralogy and petrology of 229 calcium-aluminum-rich inclusions
(CAIs) from ten CO3 meteorites of petrologic types 3.0–3.7. Subsets of these inclusions were …

In order to investigate the distribution of 26A1 in chondrites, we measured aluminum‐
magnesium systematics in four calcium‐aluminum‐rich inclusions (CAIs) and eleven …

The advent of double-Wien filter-selection-aperture and hexapole-collision-cell technologies
coupled to laser ablation multicollector inductively coupled plasma mass spectrometry (LA …