New <i>Chikyu</i> Shallow Core Program (SCORE): exploring mass transport deposits and the subseafloor biosphere off Cape Erimo, northern Japan

Y. Kubo; Y. Kubo; F. Inagaki; F. Inagaki; S. Tonai; G.-I. Uramoto; O. Takano; Y. Yamada; Y. Yamada; Y. Yamada; Y. Yamada

doi:10.5194/sd-27-25-2020

Scientific Drilling (May 2020)

New <i>Chikyu</i> Shallow Core Program (SCORE): exploring mass transport deposits and the subseafloor biosphere off Cape Erimo, northern Japan

Y. Kubo,
Y. Kubo,
F. Inagaki,
F. Inagaki,
S. Tonai,
G.-I. Uramoto,
O. Takano,
Y. Yamada,
Y. Yamada,
Y. Yamada,
Y. Yamada

Affiliations

Y. Kubo: Center for Deep Earth Exploration, Japan Agency for Marine-Earth Science and Technology, Showa-machi 3173-25, Kanazawa-ku, Yokohama 236-0001, Japan
Y. Kubo: present address: Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology, Monobe B200, Nankoku, Kochi 782-8502, Japan
F. Inagaki: Research and Development Center for Ocean Drilling Science, Japan Agency for Marine-Earth Science and Technology, Showa-machi 3173-25, Kanazawa-ku, Yokohama 236-0001, Japan
F. Inagaki: present address: Mantle Drilling Promotion Office (MDP), Institute for Marine-Earth Exploration and Engineering (MarE3), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Showa-machi 3173-25, Kanazawa-ku, Yokohama 236-0001, Japan
S. Tonai: Faculty of Science and Technology, Kochi University, Akebono-cho 5-1, Kochi 780-8520, Japan
G.-I. Uramoto: Center for Advanced Marine Core Research, Kochi University, Monobe B200, Nankoku, Kochi 783-8502, Japan
O. Takano: JAPEX Research Center, Technical Division, Japan Petroleum Exploration (JAPEX), Hamada 1-2-1, Mihama-ku, Chiba 261-0025, Japan
Y. Yamada: Research and Development Center for Ocean Drilling Science, Japan Agency for Marine-Earth Science and Technology, Showa-machi 3173-25, Kanazawa-ku, Yokohama 236-0001, Japan
Y. Yamada: Faculty of Science and Technology, Kochi University, Akebono-cho 5-1, Kochi 780-8520, Japan
Y. Yamada: Department of Earth Sciences, Royal Holloway University of London, Egham, TW20 0EX, UK
Y. Yamada: present address: Mantle Drilling Promotion Office (MDP), Institute for Marine-Earth Exploration and Engineering (MarE3), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Showa-machi 3173-25, Kanazawa-ku, Yokohama 236-0001, Japan

DOI: https://doi.org/10.5194/sd-27-25-2020
Journal volume & issue: Vol. 27
pp. 25 – 33

Abstract

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The Chikyu Shallow Core Program (SCORE) has been started to provide more opportunities for the scientific ocean drilling of shallow boreholes (up to 100 m) during a short-term expedition. The proposal flow is a simplified version of that of the International Ocean Discovery Program (IODP). Although there are several limitations for a SCORE project, the opportunity to retrieve 100 m of continuous core samples will be of great interest for the scientific ocean drilling community in multiple disciplines. The first expedition of the SCORE program was implemented off Cape Erimo, Hokkaido, northern Japan. The target of the drilling was to investigate the impact of submarine mass transport on the subseafloor sedimentary biosphere. In the preliminary observation of the core samples, including X-ray computed tomography (CT) scan image analysis, chaotic and inclined beds were found and interpreted as mass transport deposit (MTD) units.

Published in Scientific Drilling

ISSN: 1816-8957 (Print); 1816-3459 (Online)
Publisher: Copernicus Publications
Country of publisher: Germany
LCC subjects: Science: Geology
Website: http://www.scientific-drilling.net/

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