[S-CG59] 海洋底地球科学

[SCG59-18] CK16-01航海速報：コアリング，現場温度計および地熱検層ツールを用いた伊平屋北海丘および野甫サイトにおける科学掘削

*野崎 達生¹、石橋 純一郎²、熊谷 英憲¹、前田 玲奈³、CK16-01航海 乗船者一同 (1.海洋研究開発機構・海底資源研究開発センター、2.九州大学・理学部、3.海洋研究開発機構・地球深部探査センター)

キーワード：沖縄トラフ、伊平屋北海丘、野甫サイト、海底熱水鉱床、黒鉱鉱床、CK16-01航海

The CK16-01 Cruise by D/V Chikyu was performed at the Iheya-North Knoll and Noho Site, middile Okinawa Trough from 11th, February to 17th, March 2016 in order to investigate the subseafloor hydraulic structure and geology, aiming to construct the genetic model of seafloor hydrothermal deposits. In the first half of the CK16-01 Cruise, logging while drilling (LWD) was mainly done to obtain physical parameter beneath the Iheya-North Knoll and Noho Site, as well as install of the “Kuroko-ore cultivation apparatus” equipped with sensor loggers to monitor the secular changes of pressure, temperature, flow rate and precipitation weight within the Kuroko-ore cultivation apparatus on artificial hydrothermal vents. This Kuroko-ore cultivation apparatus will be recovered after one year by ROV Kaiko Mk-IV. In the latter half of the CK16-01 Cruise, the main operation was coring to obtain drilled core sample together with temperature measurement by in-situ thermometer and borehole logging after coring operation using a geothermal tool bearing pressure, temperature, flow rate and gamma-ray sensors. In this presentation, we report the preliminary results of operations during the latter half of the CK16-01 Cruise.