Kinetic isotopic fractionation during condensation: Application to planetary materials

2012 Fiscal Year Final Research Report

• Project/Area Number: 23654183
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Petrology/Mineralogy/Science of ore deposit
• Research Institution: Hokkaido University (2012); The University of Tokyo (2011)
• Principal Investigator: TACHIBANA Shogo 北海道大学, 大学院・理学研究院, 准教授 (50361564)
• Project Period (FY): 2011 – 2012
• Keywords: 金属鉄 / 凝縮 / 同位体分別 / コランダム / 速度論

Research Abstract

Kinetic isotopic fractionation might have occurred during condensation of minerals in the early solar system, but no quantitative measurements of isotopic fractionation factor during kinetic condensation of minerals have been done. In order to evaluate the isotopic fractionation factors for condensation of metallic iron and corundum, we developed experimental methods for condensation under controlled protoplanetary disk conditions.

Research Products

• [Journal Article] Crystallographically anisotropic shape of forsterite: New probe for evaluating dust formation history from infrared spectroscopy. (2012)
  • Author(s): Takigawa A. and Tachibana S .
  • Journal Title: Astrophysical Journal Volume: 750 Pages: 149-164
  • Peer Reviewed
• [Presentation] Condensation of magnesium silicates in the system of Mg2SiO4-H2O-H2: Development of low- pressure infrared furnace (2013)
  • Author(s): Tachibana S . and Takigawa A.
  • Organizer: 44th Lunar and Planetary Science Conference.
  • Place of Presentation: The Woodlands Waterway Marriott Hotel and Convention Center, Texas, USA.
  • Year and Date: 2013-03-21
• [Presentation] Dust condensation experiments at controlled low-pressure conditions (2012)
  • Author(s): Tachibana S .
  • Organizer: 5th meeting on Cosmic Dust
  • Place of Presentation: 神戸大学
  • Year and Date: 2012-08-06
• [Presentation] Anisotopic evaporation and condensation of circumstellar corundum (2012)
  • Author(s): Takigawa A., Tachibana S . , Nagahara H., and Ozawa K.
  • Organizer: 43rd Lunar and Planetary Science Conference.
  • Place of Presentation: The Woodlands Waterway Marriott Hotel and Convention Center, Texas, USA.
  • Year and Date: 2012-03-22
• [Presentation] Nucleation and growth of iron sulfide on metallic iron particles under low- pressure protoplanetary disk conditions (2012)
  • Author(s): Tachibana S .
  • Organizer: 43rdLunar and Planetary Science Conference.
  • Place of Presentation: The Woodlands Waterway Marriott Hotel and Convention Center, Texas, USA.
  • Year and Date: 2012-03-22
• [Presentation] Condensation and Gas-Solid Experiments of Minerals in Protoplanetary Disk Conditions: Implications for Formation of Chondritic Components (2011)
  • Author(s): Tachibana S .Takigawa A., Nagahara H.and Ozawa K.
  • Organizer: Formation of the first solids in the early solar system
  • Place of Presentation: Kauai, Hawaii, USA.
  • Year and Date: 2011-11-07
• [Presentation] 星周コランダムの異方的凝縮速度の決定 (2011)
  • Author(s): 瀧川晶,橘省吾,永原裕子,小澤一仁
  • Organizer: 日本惑星科学会2011年秋季講演会.
  • Place of Presentation: 相模女子大学
  • Year and Date: 2011-10-25
• [Presentation] 原始惑星系円盤条件での金属鉄・フォルステライトの凝縮速度論 (2011)
  • Author(s): 橘省吾,永原裕子,小澤一仁,瀧川晶
  • Organizer: 2011年度日本地球化学会年会
  • Place of Presentation: 北海道大学
  • Year and Date: 2011-09-16
• [Book] 地球と宇宙の化学事典 (2012)
  • Author(s): 瀧川晶,橘省吾
  • Total Pages: 397
• [Book] 熱技術30年の歩み (2012)
  • Author(s): 橘省吾
  • Total Pages: 1-4
• [Remarks]
  • URL: http://shogotachibana.webnode.jp/