Host: Japan Association of Mineralogical Sciences
The chondrule formation environment is divided into two, in the solar nebula and planetesimals. In the present experimental study, chondrules were reproduced under the theoretically predicted condition of the pressure 1-100 Pa by hydrogen gas. Only insufficient experiments have been carried out under the condition since the reproduction experiments of chondrules have been carried out mainly under the atmospheric pressure. We controlled the Si-rich gas pressure, since the oxygen isotopes suggests the interaction of the chondrule melt with Si-rich gas. We compared constituents (olivine, pyroxene, and glass) of the run products with those in chondrules of unequilibrated chondrites, and their compositions and textures were similar each other.
