Yokoyama Laboratory investigates origin and evolution of the early solar system materials by isotopic and elemental analysis of terrestrial and extraterrestrial mateterials.

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6/14/2019 Dr. Haba published a new paper in Nature Geoscience regarding a new model for the evolutionary history of Vesta.

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Yokoyama, T., Nagai, Y., Fukai, R., Hirata, T.

Origin and evolution of distinct Mo isotopic variabilities within carbonaceous and non-carbonaceous reservoirs.
Astrophys. J., in press.

Kagami, S., Haba, M.K., Yokoyama, T., Usui, T., Greenwood, R.C.

Geochemistry and Sm-Nd chronology of a Stannern trend eucrite, Northwest Africa 7188.
Meteoritics & Planetary Science, in press.

Fukai, R., Yokoyama, T.

Assessment of the secondary instrumental fractionation in TIMS: Implication for high-precision Nd isotope analysis of geological samples.
Geochemical J., in press.

Haba, M.K., Wotzlaw, J.F., Lai, Y.-J., Yamaguchi, A., Schonbachler, M.

Mesosiderite formation on asteroid 4 Vesta by a hit-and-run collision.
Nature Geoscience, 2019. doi: 10.1038/s41561-019-0377-8