Whole-rock geochemical compositions of igneous-origin rocks from the 1:200,000, Hiroo Quadrangle and related area.

DOI Web Site Web Site 3 Citations 59 References Open Access
  • Yamasaki Toru
    AIST, Geological Survey of Japan, Research Institute of Geology and Geoinformation
  • Nanayama Futoshi
    AIST, Geological Survey of Japan, Research Institute of Geology and Geoinformation Center for Marine Environment Studies, Kumamoto University
  • Takahashi Yutaka
    AIST, Geological Survey of Japan, Research Institute of Geology and Geoinformation
  • Yamashita Kohei
    Department of Natural History Sciences, Graduate School of Science, Hokkaido University

Bibliographic Information

Other Title
  • 20 万分の1 地質図幅「広尾」及び関連地域に産する火成岩源岩石の全岩化学組成
  • 概報 20万分の1地質図幅「広尾」及び関連地域に産する火成岩源岩石の全岩化学組成
  • ガイホウ 20マンブン ノ 1 チシツ ズフク 「 ヒロオ 」 オヨビ カンレン チイキ ニ サンスル カセイガン ゲン ガンセキ ノ ゼン ガン カガク ソセイ

Search this article

Abstract

<p>Whole-rock major and trace geochemical analyses of igneous rocks and igneous-origin rocks from the 1:200,000, Hiroo Quadrangle and related area have been carried out to confirm geotectonic attribution and correlation. Studied samples are; 1) Okutokachi Amphibolite, 2) Rekifune Volcanic Rocks, 3) dolerite dike in the Okawa Formation (Middle Miocene), 4) greenstone in the Toyokoro area (originated from Nikoro Group, Tokoro Belt), 5) granitic gravels in the Toyonigawa Formation (Middle Late Miocene), 6) Nupinai Granite in the Hidaka Metamorphic Belt, 7) mafic volcanic gravels in the Nakanogawa Group, Hidaka Belt (Paleocene–Eocene), 8) greenstone from the Daimaruyama Greenstone body in the Nakanogawa Group, 9) granitic gravel in the Erimo Formation (Utaro Conglomerate: Late Oligocene), and 10) acidic tuff in the Sakashita Formation, Nakanogawa Group, Hidaka Belt. Obtained data are important as the scientific bases of the 1:200,000, Hiroo Quadrangle (2nd edition), and valuable information for future researches. Based on the analytical results, geotectonic attribution, origin and tectonics of the studied samples are preliminary discussed.</p>

Journal

Citations (3)*help

See more

References(59)*help

See more

Related Projects

See more

Keywords

Details 詳細情報について

Report a problem

Back to top