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

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


Tokyo Tech News


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