Pursuit of the XXX of the relationships between the origins of carbonaceous chondrites, micrometeorites, and interplnaetary dust particles.

2004 Fiscal Year Final Research Report Summary

• Project/Area Number: 13440158
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Petrology/Mineralogy/Science of ore deposit
• Research Institution: Ibaraki University
• Principal Investigator: NOGUCHI Takaaki Ibaraki University, Department of Materials and Biological Sciences, Associate Professor, 理学部, 助教授 (40222195)
• Co-Investigator(Kenkyū-buntansha): NAKAMURA Tomoki Kyushu University, Department of Earth and Planteary Sciences, Associate Professor, 大学院・理学研究院, 助教授 (20260721) ; YANO Hajime JAXA/ISAS, Assistant Professor, 助手 (00321571)
• Project Period (FY): 2001 – 2004
• Keywords: Carbonaceous chondrite / Micrometeorite / Interplanetary dust particle / TEM / Synchrotron radiation / Saponite / Serpentine / Presolar grains

Research Abstract

1.We found more than 5000 micrometeorites from the fine-grained samples collected by the Japanese Antarctic Research Expedition Teams. The majority of the micrometeorites are heavily heated. Only about 1% of them experienced the least heating. We investigated the least heated micrometeorites by synchrotron radiation X-ray diffraction and TEM. Most of them contain abundant saponite as phyllosilicate. Next abundant ones contain both saponite and serpentine as phyllosilicates. Serpentine-predominant ones are revealed to be minor and comprises about 10% of the least heated ones. The most abundant type of phyllosilicate-rich micrometeorites has mineralogy similar to that of Tagish Lake meteorite. Next type resembles CI chondrites. Their parental asteroids are thought to be D-type and C-type asteroids, respectively. In other words, these data suggest that there are many micrometeorites derived from these types of asteroids.
2.We also found hypercarbonaceous anhydrous micrometeorites. These mi crometeorites are composed of major carbonaceous material with relatively small amounts of anhydrous minerals such as olivine, low-Ca pyroxene, iron-nickel metal, and iron sulfides (and oxidized and weathered minerals of the metal and sulfide). Two such micrometeorites were sent to Washington University, St.Louis to search the presolar silicate grains in the meteorites. Two presolar silicate grains were discovered from tt54B397. The abundance of the presolar silicates is much higher than that of primitive meteorites. This kind of micrometeorites has an intimate relationship with hypercarbonaceous anhydrous interplanetary dust particles. The high abundance of presolar silicates suggests that this type of micrometeorites were probably derived from comets, P-type asteroids, and Kuiper belt objects.
3.We analyzed mineralogy of carbonaceous chondrite clasts in the H chondrite regolith breccias. Most of them contain saponite or saponite and serpentine as the major phyllosilicates. However, the abundance of CM-like clasts is about 30%, which is higher than that of CM-like micrometeorites.

Research Products

• [Journal Article] Glass veins in the unequilibrated eucrite Yamato 82202. (2005)
  • Author(s): Buchanan P.C., Noguchi T.他
  • Journal Title: Geochim.Cosmochim.Acta 69 Pages: 1833-1898
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Infrared spectroscopic taxonomy for carbonaceous chondrites from speciation of hydrous components. (2005)
  • Author(s): Osawa, T.他
  • Journal Title: Meteoritics Planet.Sci. 40 Pages: 71-86
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Infrared spectroscopic taxonomy for carbonaceous chondrites from speciation of hydrous components. (2005)
  • Author(s): Osawa, T., Kagi, H., Nakamura, T., Noguchi, T.
  • Journal Title: Meteoritics Planet.Sci. 40 Pages: 71-86
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Glass veins in the unequilibrated eucrite Yamato 82202. (2005)
  • Author(s): Buchanan P.C., Noguchi T., Bogard D.D., Ebihara M., Katayama I.
  • Journal Title: Geochim.Cosmochim.Acta 69 Pages: 1883-1898
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Evaluation of mineralogical alteration of micrometeoroid analog materials captured in aerogel. (2004)
  • Author(s): Okudaira, K., Noguchi, T.他
  • Journal Title: Advances in Space Research 34 Pages: 2299-2304
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] The global accretion rate of extraterrestrial materials in the last glacial periodestimated from the abundance of micrometeorites in Antarctic glacier ice. (2004)
  • Author(s): Yada, T., Nakamura, T.他
  • Journal Title: Earth Planets Space 56 Pages: 67-79
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] The global accretion rate of extraterrestrial materials in the last glacial periodestimated from the abundance of micrometeorites in Antarctic glacier ice. (2004)
  • Author(s): Yada, T., Nakamura, T., Takaoka, N., Noguchi, T., Terada, K., Yano, H., Nakazawa, T., Kojima, H.
  • Journal Title: Earth Planets Space 56 Pages: 67-79
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Evaluation of mineralogical alteration of micrometeoroid analog materials captured in aerogel. (2004)
  • Author(s): Okudaira, K., Noguchi, T., Nakamura, T., Sugita, S., Yano, H.
  • Journal Title: Advances in Space Research 34 Pages: 2299-2304
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Remnant extraterrestrial noble gases in Antarctic cosmic spherules. (2003)
  • Author(s): Osawa, T.他
  • Journal Title: Antarctic Meteorite Res. 16 Pages: 196-219
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Formation history of CI-like phyllosilicate-rich clasts in the Tsukuba meteorite inferred from mineralogy and noble gas signatures. (2003)
  • Author(s): Nakashima, D., Nakamura, T., Noguchi, T.
  • Journal Title: Earth Planet.Sci.Lett. 212 Pages: 312-336
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Mineralogy and noble-gas signatures of the carbonate-rich lithology of the Tagish Lake carbonaceous chondrite : evidence for an accretionary breccia. (2003)
  • Author(s): Nakamura, T., Noguchi, T., Zolensky, M.E., Tanaka, M.
  • Journal Title: Earth Planet.Sci.Lett. 207 Pages: 83-101
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Remnant extraterrestrial noble gases in Antarctic cosmic spherules. (2003)
  • Author(s): Osawa, T., Nagao, K., Noguchi, T., Nakazawa, A., Mikada, J.
  • Journal Title: Antarct.Meteorite Res. 16 Pages: 196-219
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Estimation of three-dimensional internal Antarct.structures of some barred olivine chondrules in Allende (CV3) chondrite. (2002)
  • Author(s): Noguchi, T.
  • Journal Title: Meteorite Res. 15 Pages: 59-77
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Mineralogy of phyllosilicate-rich micrometeorites and comparison with Tagish Lake and Sayama meteorites. (2002)
  • Author(s): Noguchi, T., Nakamura, T., Nozaki, W.
  • Journal Title: Earth Planet.Sci.Lett. 202 Pages: 229-246
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] General characterization of Antarctic micrometeorites collected by the 39^<th> Japanese Antarctic Research Expedition : Consortium studies of JARE AMMs (III) (2001)
  • Author(s): Terada, K., Yada, T., Kojima, H., Noguchi, T., Nakamura, T., Murakami, T., Yano, H., Nozaki, W., Nakamuta, Y., Matsumoto, N., Kamata, J., Mori, T., Nakai, I., Sasaki, M., Itabashi, M., Setoyanagi, T., Nagao, K., Osawa, T., Hiyagon, H., Mizutani, S., Fukuoka, T., Nogami, K., Ohmori, R., Ohashi, H.
  • Journal Title: Antarct.Meteorite Res. 14 Pages: 89-107
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Bulk mineralogy of individual micrometeorites determined by X-ray diffraction analysis and transmission electron microscopy. (2001)
  • Author(s): Nakamura, T., Noguchi, T., Yada, T., Nakamuta, Y., Takaoka, N.
  • Journal Title: Geochim.Cosmochim.Acta 23 Pages: 4385-4398
  • Description: 「研究成果報告書概要(欧文)」より
• [Book] Dust in the solar system and other planetary system.(Green et al., eds.) (2003)
  • Author(s): T.Noguchi et al.(一章担当)
  • Total Pages: 414
  • Publisher: Pergamon Press
  • Description: 「研究成果報告書概要(和文)」より