The vanadium isotopic composition of L ordinary chondrites
| Autor: | Yongli Xue, Chuantong Zhang, Fang Huang, Yuhan Qi, Chun-Hui Li, Bingkui Miao |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Isotope
010401 analytical chemistry Geochemistry Vanadium chemistry.chemical_element Weathering 010502 geochemistry & geophysics 01 natural sciences Silicate Mantle (geology) 0104 chemical sciences chemistry.chemical_compound chemistry Meteorite Geochemistry and Petrology Chondrite Terrestrial planet 0105 earth and related environmental sciences |
| Zdroj: | Acta Geochimica. 37:501-508 |
| ISSN: | 2365-7499 2096-0956 |
| DOI: | 10.1007/s11631-018-0279-2 |
| Popis: | Stable isotopic data of meteorites are critical for understanding the evolution of terrestrial planets. In this study, we report high-precision vanadium (V) isotopic compositions of 11 unequilibrated and equilibrated L chondrites. Our samples show an average δ51V of − 1.25‰ ± 0.38‰ (2SD, n = 11), which is ~ 0.5‰ lighter than that of the bulk silicate Earth constrained by mantle peridotites. Isotopic fractionation in type 3 ordinary chondrites vary from − 1.76‰ to − 1.29‰, whereas the δ51V of equilibrated chondrites vary from − 1.37‰ to − 1.08‰. δ51V of L chondrites do not correlate with thermal metamorphism, shock stage, or weathering degree. Future studies are required to explore the reason for V isotope variation in the solar system. |
| Databáze: | OpenAIRE |
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