Amorphization of Serpentine at High Pressure and High Temperature: Implications for the Mechanism of Deep-focus Earthquakes.

• IRIFUNE Tetsuo

  愛媛大学理学部生物地球圏科学教室

Bibliographic Information

Other Title

• 蛇紋石の非晶質化と深発地震
• ジャモンセキ ノ ヒショウシツカ ト シンパツ ジシン

Abstract

In situ X-ray diffraction measurements of the phase transformations in serpentine have been carried out using a multianvil high-pressure system combined with synchrotron radiation. Serpentine persisted upon compression to 28 GPa at a room temperature, while it became amorphous in a limited temperature interval of 200-400°C at pressures above 13 GPa. A rapid crystallization of high pressure phases then started at temperatures greater than about 400°C. These observations suggest that the amorphization of serpentine is an unlikely mechanism of deep-focus earthquakes associated with subduction of slabs, as the temperatures of these slabs are generally higher than those of the rapid crystallization regime.

Journal

• Nihon Kessho Gakkaishi

  Nihon Kessho Gakkaishi 38 (6), 396-399, 1996

  The Crystallographic Society of Japan

Details

• CRID: 1390001204087767936
• NII Article ID: 10002025433
• NII Book ID: AN00188364
• DOI: 10.5940/jcrsj.38.396
• ISSN: 18845576
• ISSN: 03694585
• NDL BIB ID: 4170863
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4170863
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed