K-Ar ages of the Early Cretaceous Shimonoseki Subgroup and the Kawara Granodiorite, Southwest Japan.

• MATSUURA Hirohisa

  Geology Department, Geological Survey of Japan

Bibliographic Information

Other Title

• 下関亜層群と香春花こう閃緑岩（若松岩体）のＫ‐Ａｒ年代
• 下関亜層群と香春花崗閃緑岩(若松岩体)のK-Ar年代
• シモノセキ アソウグン ト カワラ カコウセンリョクガン ワカマツガンタイ ノ

Abstract

K-Ar ages were determined for hornblende in andesite lava from the Shimonoseki Subgroup of the Kanmon Group and for hornblende and biotite from the Kawara Granodiorite of the north Kyushu granitic rocks. The Shimonoseki Subgroup gave late Early Cretaceous age of 103 Ma. The Kawara Granodiorite gave latest Early Cretaceous ages of 96.9 Ma (hornblende) and 98.6 Ma (biotite).

Journal

• JOURNAL OF MINERALOGY, PETROLOGY AND ECONOMIC GEOLOGY

  JOURNAL OF MINERALOGY, PETROLOGY AND ECONOMIC GEOLOGY 93 (8), 307-312, 1998

  Japan Association of Mineralogical Sciences

Keywords

• Kanmon Group
• Shimonoseki Subgroup
• andesite
• granite
• Cretaceous
• K-Ar age

Details

• CRID: 1390001206233650560
• NII Article ID: 10002090387
• NII Article ID: 10004653077
• NII Book ID: AN10047992
• DOI: 10.2465/ganko.93.307
• COI: 1:CAS:528:DyaK1cXotFertbY%3D
• ISSN: 18813275
• ISSN: 09149783
• NDL BIB ID: 4609473
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4609473
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed