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 …

There are a variety of isotopic data for meteorites which suggest that the protostellar nebula
existed and was involved in making planetary materials for some 107 yr or more. Many …

The concentrations of 32 elements (major, minor, REE, Ba, Hf, Sc, V, Co, Ni, Sr, Y, Zr, Nb,
Ge, Th and U) were measured using an ion microprobe in olivine and orthopyroxene, and in …

Chemical compositions were determined on mineral inclusions recovered from 290
microdiamonds (< 1 mm) from 8 operating diamond mines in Yakutia. The sampled diamond …

A search was made for 26Mg (26Mg*) from the decay of 26Al (half-life= 0.73 million years) in
Al-rich objects from unequilibrated ordinary chondrites. Two Ca-Al-rich inclusions (CAIs) and …

ABSTRACT We report O-, Al-Mg-, K-, Ca-, and Ti-isotopic data for a total of 96 presolar oxide
grains found in residues of several unequilibrated ordinary chondrite meteorites. Identified …

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 …

We have studied a suite of six coarse-grained Ca-Al-rich inclusions (CAIs) from the Allende
meteorite, applying in concert detailed petrographic and chemical characterization, ion …

Abstract Magnesium-, calcium-, and titanium-isotopic compositions, as well as trace-element
abundances, have been determined by ion microprobe mass spectrometry for 37 hibonite …