Browsing ELibrary by Author "Tachibana S."

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EVAPORATION OF FORSTERITE IN THE PRIMORDIAL SOLAR NEBULA; RATES AND ACCOMPANIED ISOTOPIC FRACTIONATION

Tsuchiyama A.; Tachibana S.; Takahashi T. (1999)

Evaporation rates of forsterite in the primordial solar nebula were modeled. There are 3 evaporation regimes expected: 1. free evaporation-dominated (FED) regime, where forsterite evaporates as free evaporation, 2. hydrogen ...
EXPERIMENTAL STUDY OF INCONGRUENT EVAPORATION KINETICS OF ENSTATITE IN VACUUM AND IN HYDROGEN GAS

Tachibana S.; Tsuchiyama A.; Nagahara H. (2002)

Variations in bulk Mg/Si ratios in the various groups of chondritic meteorites indicate that Mg/Si fractionation occurred in the primitive solar nebula. Enstatite (MgSiO3) evaporates incongruently forming forsterite (Mg2SiO4) ...
INCONGRUENT EVAPORATION OF TROILITE (FES) IN THE PRIMORDIAL SOLAR NEBULA: AN EXPERIMENTAL STUDY

Tachibana S.; Tsuchiyama A. (1998)

Incongruent evaporation experiments on troilite (FeS) were carried out under H2-rich conditions at total pressure 1.0-10-6 atm (800-970°C) to elucidate the kinetics of incongruent evaporation of troilite in the primordial ...
INCONGRUENT EVAPORATION OF TROILITE (FES) IN THE PRIMORDIAL SOLAR NEBULA: AN EXPERIMENTAL STUDY - STATUS OF THEORY AND EXPERIMENTS

Tachibana S.; Tsuchiyama A. (1998)

Incongruent evaporation experiments on troilite (FeS) were carried out under H2-rich conditions at total pressure 1.0-10-6 atm (800-970°C) to elucidate the kinetics of incongruent evaporation of troilite in the primordial ...
SULFUR ISOTOPE COMPOSITION OF PUTATIVE PRIMARY TROILITE IN CHONDRULES FROM BISHUNPUR AND SEMARKONA

Tachibana S.; Huss G.R. (2005)

The sulfur isotopic compositions of putative primary troilite grains within 15 ferromagnesian chondrules (10 FeO-poor and 5 FeO-rich chondrules) in the least metamorphosed ordinary chondrites, Bishunpur and Semarkona, have ...
THE RELATIVE FORMATION AGES OF FERROMAGNESIAN CHONDRULES INFERRED FROM THEIR INITIAL ALUMINUM-26/ALUMINUM-27 RATIOS

Mostefaoui S.; Kita N.T.; Togashi S.; Tachibana S.; Nagahara H.; Morishita Y. (2002)

We performed a systematic high-precision secondary ion mass spectrometry 26Al-26Mg isotopic study for 11 ferromagnesian chondrules from the highly unequilibrated ordinary chondrite Bishunpur (LL3.1). The chondrules are ...

Browsing ELibrary by Author "Tachibana S."

Browsing ELibrary by Author "Tachibana S."

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