Reactions in the Evolving Earth and Planetary Systems

Kinetics!  It is important to understand chemical reactions occurring in the Earth and planetary systems in the context of kinetics for better understanding of their evolution.  I do laboratory experiments to obtain kinetics of reactions.

Related publications

Kuroda M., Tachibana S., Sakamoto N., Nakaumura M., Okumura S. and Yurimoto H. (2018) Water diffusion in silica glass through pathways formed by hydroxyls. Am. Mineral., in press.

Takigawa A., Tachibana S., Nagahara H. and Ozawa K. (2015) Evaporation and condensation kinetics of corundum: The origin of the 13-μm feature of oxygen-rich AGB stars. Astrophys. J. Suppl., 218, doi:10.1088/0067-0049/218/1/2

Tachibana S., Tamada S., Kawasaki H., Ozawa K. and Nagahara H. (2013) Interdiffusion of Mg-Fe in olivine at 1,600-1,400°C and 1 atm total pressure. Phys. Chem. Min. 40, 511-519. doi:10.1007/s00269-013-0588-2

Takigawa A. and Tachibana S. (2012) Crystallographically anisotropic shape of forsterite: New probe for evaluating dust formation history from infrared spectroscopy. Astrophys. J. 750, 149-164. doi:10.1088/0004-637X/750/2/149

Tachibana S., Nagahara H., Ozawa K., Ikeda, Y., Nomura, R., Tatsumi, K., and Joh, Y. (2011) Kinetic condensation and evaporation of metallic iron and implications for metallic iron dust formation. Astrophys. J. 736, 16. doi:10.1088/0004-637X/736/1/16

Nagahara H., Ozawa K., Ogawa R., Tachibana S. and Chiba H. (2009) Laboratory condensation and reaction of silicate dust. In Cosmic Dust - Near and Far (Eds. Th. Henning, E. Grun and J. Steinacker), ASP Conf. Ser., p.403-410.

Takigawa A., Tachibana S., Nagahara H., Ozawa K. and Yokoyama M. (2009) Anisotropic evaporation of forsterite and its implication for dust formation conditions in circumstellar environments. Astrophys. J. Letters 707, L97-L101. doi:10.1088/0004-637X/707/1/L97

Yamada M., Tachibana S., Nagahara H. and Ozawa K. (2006) Anisotropy of Mg isotopic fractionation during evaporation and Mg self-diffusion of forsterite in vacuum. Planetary and Space Science 54, 1096-1106. doi:10.1016/j.pss.2006.05.020

Nakano H., Kouchi A., Tachibana S. and Tsuchiyama A. (2003) Evaporation of interstellar organic materials in the solar nebula. Astrophys. J. 592, 1252-1262. doi:10.1086/375856

Tachibana S., Tsuchiyama A. and Nagahara H. (2002) Experimental study of incongruent evaporation kinetics of enstatite in vacuum and in hydrogen gas. Geochim. Cosmochim. Acta 66, 713-728. doi:10.1016/S0016-7037(01)00797-9

Tachibana S., Tsuchiyama A. and Watanabe S. (1999) Evaporation of Fe and FeS in the active stage of the primordial solar nebula, and Fe/S fractionation. Antarc. Met. Res. 12, 213-242.

Tachibana S. and Tsuchiyama A. (1998) Incongruent evaporation of troilite (FeS) in the primordial solar nebula; an experimental study. Geochim. Cosmochim. Acta 62, 2005-2022. doi:10.1016/S0016-7037(98)00122-7

Tsuchiyama A., Takahashi T. and Tachibana S. (1998) Evaporation rates of forsterite in the system Mg2SiO4-H2. Mineral.J. 20, 113-126. doi:10.2465/minerj.20.113