Clues to early Solar System history from chromium isotopes in carbonaceous chondrites
Article Abstract:
The finding that carbonaceous chondrite meteorites contain anomalous quantities of a chromium isotope (54Cr) supports the hypothesis that the Solar System's chromium isotopic composition derives from the mixing of a supernova's products. Since the meteorites are thought to be composed of material from the primitive Solar System, analysis of their composition yields data on the Solar System's formation and early history. The 54Cr data indicate that the solar nebula formed from the coalescing of distinct nucleosynthetic components.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1992
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A conduit to the core: A better understanding of the dynamics of Earth's mantle depends on improved techniques for isotopic tracing. One such study has resolved minute variations in isotopes of osmium and links surface volcanism to events at the core
Article Abstract:
Brandon and colleagues have reported data that Hawaiian volcanic rocks could contain a small amount of material derived directly from the Earth's metallic core. This could provide evidence that the cause of mid-plate hotspot volcanoes is narrow plumes of hot mantle that rise from the boundary between core and mantle. Brandon and colleagues employed an isotopic trace technique, examining the isotopic composition of osmium.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
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Chlorine isotope homogeneity of the mantle, crust and carbonaceous chondrites
Article Abstract:
A study to analyse the crustal sediments from the early Achaean era to the recent epoch is conducted. Findings observed that there are no nebular reservoirs with distinct isotopic compositions, no isotopic fractionation during differentiation of the Earth and no late Cl-bearing volative additions to the crustal veneer with a unique isotopic composition.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2007
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