Study on Paleomagnetism and Plate Tectonics of Indian Plate

  • HIROKA, Kimio (Principal Investigator)
  • TIKU, F. (Co-Investigator(Kenkyū-buntansha))
  • TAKIGAMI, Yutaka (Co-Investigator(Kenkyū-buntansha))
  • 酒井, 英男 (Co-Investigator(Kenkyū-buntansha))
  • 船木, 實 (Co-Investigator(Kenkyū-buntansha))
  • Sakai, Harutaka (Co-Investigator(Kenkyū-buntansha))
  • KINOSHITA, Hajimu (Co-Investigator(Kenkyū-buntansha))

Project Details

Abstract

Although the paleomagnetic and age dating studies are still on going, we got some preliminary results. 6 ages are determined by the Ar-Ar method. The ages obtained are 574 Ma for the Archean dike of Site 21, 520 Ma for the lower Proterozoic khondalite of Site 34, 510-520 Ma for the Proterozoic dolerite dike of Site 0, and 510 Ma for the Proterozoic gneissose granite of Site 1 in the Godavari graben, and 560 and 680 Ma for the Archean granitic gneiss of Site 38 and 59, in the Mahanadi Graben. And 6 reliable paleomagnetic remanent directions are obtained from the Archean granitic gneiss of Site 38, the Archean charnokite of Site 39, the Proterozoic dolerite dike of Site 0, and the Cretaceous Rajmahl trap basalt flows of Sites 80, 82 and 101.
StatusFinished
Effective start/end date1992/01/01 → 1993/12/31

Funding

  • Japan Society for the Promotion of Science: ¥10,500,000.00

Keywords

  • ゴンドワナ超大陸
  • マハナディ地溝帯
  • ゴダバリ地溝帯
  • 白亜紀ラジマ-ルトラップ玄武岩
  • 始生代の貫入岩
  • 始生代のチャーノカイト
  • ゴンドワナ大陸
  • 古地磁気学
  • 年代学
  • ラジマール・トラップ
  • Gondwana super-continent
  • Mahanadi Graben
  • Godavari Graben
  • Cretaceous Rajimahal trap basalt
  • Archaean dike
  • Archaean charnokite

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