Early Cretaceous U-Pb dates of zircons from the Kabashima Granite in the Nomo Peninsula, Nagasaki Prefecture, SW Japan

DOI Web Site Web Site 4 Citations 10 References
  • Nagata Mitsuhiro
    Graduate School of Science and Engineering, University of Toyama
  • Kouchi Yoshikazu
    Graduate School of Science and Engineering, University of Toyama Product Technology Development Department, DOS Co., Ltd.
  • Otoh Shigeru
    Academic Assembly, Faculty of Sutainable Design, University of Toyama

Bibliographic Information

Other Title
  • 長崎県野母半島樺島花崗岩産ジルコンのU-Pb年代
  • ナガサキケンノボ ハントウ カバシマ カコウガンサン ジルコン ノ U-Pb ネンダイ

Search this article

Description

<p>The Kabashima Granite has intruded the pre-Cretaceous geological unit in Kabashima Island near the southern tip of the Nomo (Nagasaki) Peninsula, Nagasaki Prefecture, western Kyushu, Japan. Although previous studies have reported Late Cretaceous (ca. 93-77 Ma) muscovite and biotite K-Ar dates from this granite body, we obtained only Early Cretaceous (ca. 125-110 Ma) zircon U-Pb dates; the dates were calculated from all the 206Pb/238U and 207Pb/235U data sets with the error-ellipse (2σ) intersecting the concordia curve on the concordia diagram. The difference between the muscovite and biotite K-Ar and zircon U-Pb dates is between 25 million and 40 million years.</p>

Journal

Citations (4)*help

See more

References(10)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top