Titanium isotopic anomalies in chondrules from carbonaceous chondrites

Computer Science

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Allende Meteorite, Carbonaceous Chondrites, Chondrule, Cosmology, Interstellar Gas, Titanium Isotopes, Cosmic Dust, Mass Spectroscopy, Refractory Metals, Solar System, Meteorites, Stony Meteorites, Carbonaceous Chondrites, Titanium, Isotopes, Anomalies, Chondrules, Samples, Meteorite, Allende, Cais, Inclusions, Refractory Material, Enrichment, Murchison, Kaidun, Kakangari, Models, Dust, Procedure, Laboratory Studies, Oxygen, Silicon, Formation, Origin

Scientific paper

Isotopic analyses of Ti from a suite of eight Allende chondrules were conducted to determine whether any relationship exists between the composition and structure of a chondrule and the Ti isotopic patterns. Four of the eight chondrules displayed well-resolved anomalies with respect to Ti-50/Ti-46 ratio, which ranged from a Ti-50 deficit of two epsilon-units to a T-50 excess of nine epsilon-units. No clear link was found between the structure of the chondrules and the Ti anomalies (although the chondrule with by far the largest Ti isotopic anomaly was also Al-rich, suggesting that there might exist a complicated relationship between the degree of refractory enrichment and the magnitude of Ti isotopic anomalies.

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