Geochemical characteristics of ridge-subduction-related granitoids

• Kon Yoshiaki

  AIST

• Komiya Tsuyoshi

  University of Tokyo

• Anma Ryo

  University of Tsukuba

• Hirata Takafumi

  Kyoto University

• Maruyama Shigenori

  Tokyo Institute of Technology

Bibliographic Information

Other Title

• 中央海嶺沈み込みに伴う花崗岩の地球科学的特徴

Abstract

The Taitao Peninsula is the youngest site of ridge subduction in the world, where a young oceanic plate subducts, probably equivalent to the Archean subduction zone. Based on geological evidence and age and composition of the granite, we conclude that the granitic magma was generated over 10 km depth below a fore-arc region, and imply that ridge subduction played an important role in the igneous activity as a heat source. Moreover, REE patterns of granitoid are not necessary good signature of slab melting.

Journal

• Abstracts of Annual Meeting of the Geochemical Society of Japan

  Abstracts of Annual Meeting of the Geochemical Society of Japan 57 (0), 158-158, 2010

  GEOCHEMICAL SOCIETY OF JAPAN

Keywords

• Taitao
• granite
• TTG
• LA-ICPMS
• ridge-subduction

Details

• CRID: 1390001205731819648
• NII Article ID: 130004593256
• DOI: 10.14862/geochemproc.57.0.158.0
• Data Source:
  • JaLC
  • CiNii Articles
• Abstract License Flag: Disallowed