Chrolonological study of drilled cores from active hydrothermal fields in the Okinawa Trough
-
- Ishibashi Jun―ichiro
- 神戸大学
-
- Itatani Yushi
- 九州大学大学院
-
- Onoue Tetsuji
- 九州大学大学院
-
- Okazaki Yusuke
- 九州大学大学院
-
- Tomita Makiko
- 岡山理科大学大学院
-
- Toyoda Shin
- 岡山理科大学
-
- Arai Kazuno
- 高知大学
Bibliographic Information
- Other Title
-
- 沖縄トラフ熱水域の掘削コア試料を用いた年代学研究
Abstract
<p>Among sediment cores collected from Ieyama hydrothermal field in the Okinawa Trough, mineralization layers with occurrence of barite and sphalerite were identified between 53-65 mbsf. We have conducted chronological study of barite in the sediment using 226Ra‐210Pb dating and ESR dating. The results yielded 20-90 yrs. and 350-1050 yrs. as formation ages. On the other hand, radiocarbon dating of planktic foraminifera in the surface sediment at 0.15-0.20 mbsf collected from three places in the study field yielded 900‐1500 yrs.There results provide constraint on mineralization process that occurred beneath the seafloor.</p>
Journal
-
- Abstracts of Annual Meeting of the Geochemical Society of Japan
-
Abstracts of Annual Meeting of the Geochemical Society of Japan 69 (0), 94-, 2022
GEOCHEMICAL SOCIETY OF JAPAN
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390294276466835328
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
-
- Abstract License Flag
- Disallowed