Deciphering the early Solar System chronology and planetary chemistry using isotope systematics of meteoritic zircon

  • Iizuka, Tsuyoshi (PI)

    Project: Research

    Project Details

    Description

    The challenge in deciphering the early evolution of our Solar System lies with a precise and accurate dating of early Solar System processes. Short-lived radionuclides offer precise clocks for these processes. However, the short-lived isotopic chronometers measure only relative time differences, and require a reliable time anchor to map the relative ages onto an absolute timescale. This project seeks to provide precise and accurate U-Pb absolute age anchors for Hf-W and Nb-Zr short-lived isotopic chronometers by integrating U-Pb, Hf-W, and Nb-Zr isotopic data from meteoritic zircon. Additionally, Lu-Hf isotopes in the zircon will be analyzed to constrain the initial state of Hf isotopic evolution in the Earth's crust and mantle.
    StatusFinished
    Effective start/end date1/02/101/04/12

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