Rock and sediment dataset of petit-spots in the northwestern Pacific

Norikatsu Akizawa; Naoto Hirano; Shiki Machida; Akira Ishikawa; Yuka Niwa; Gen Shimoda; Kazutaka Yasukawa; Kenji M. Matsuzaki; Chiori Tamura; Junji Kaneko

Data in Brief (Dec 2022)

Rock and sediment dataset of petit-spots in the northwestern Pacific

Norikatsu Akizawa,
Naoto Hirano,
Shiki Machida,
Akira Ishikawa,
Yuka Niwa,
Gen Shimoda,
Kazutaka Yasukawa,
Kenji M. Matsuzaki,
Chiori Tamura,
Junji Kaneko

Affiliations

Norikatsu Akizawa: Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba 277-8564, Japan; School of Natural Sciences, Macquarie University, Sydney, New South Wales 2109, Australia; Corresponding author.
Naoto Hirano: Center for NE-Asian Studies, Tohoku University, 41, Kawauchi, Aobaku, Sendai, Miyagi 980-8576, Japan
Shiki Machida: Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 2-17-1, Tsudanuma, Narashino, Chiba 275-0016, Japan
Akira Ishikawa: Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro, Tokyo 152-8550, Japan
Yuka Niwa: Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro, Tokyo 152-8550, Japan
Gen Shimoda: Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8567, Japan
Kazutaka Yasukawa: Frontier Research Center for Energy and Resources, School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo, Tokyo 113-8656, Japan
Kenji M. Matsuzaki: Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba 277-8564, Japan
Chiori Tamura: Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba 277-8564, Japan
Junji Kaneko: Submarine Resources Research Center, Japan Agency for Marine-Earth Science and Technology, 2-15, Natsushima, Yokosuka, Kanagawa 237-0061, Japan

Journal volume & issue: Vol. 45
p. 108764

Abstract

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Rock and sediment samples were collected from petit-spots in the northwestern Pacific. The sampling was conducted using deep-submergence vehicle (DSV) Shinkai 6500 and its mother ship, research vessel (RV) Yokosuka during YK20-14S and YK21-07S cruises. The collected rock samples are basalt and peperite. Some of the basalts include small mantle xenoliths (∼3 cm in diameter). The dataset of rock and sediment samples from the petit-spots located on >130 Ma northwestern Pacific plate are presented herein. The peperites are a reaction product between petit-spot magma and wet sediment, and the mantle xenoliths are fragmented mantle materials transported by the petit-spot magmas. Therefore, the petit-spot samples are of significant importance to elucidate modification process of the surface condition by petit-spot magma and to characterize the deep lithospheric mantle. The dataset presented herein provides in a sense a unique insight into the whole Pacific plate just before its subduction beneath the Japan arc.

Published in Data in Brief

ISSN: 2352-3409 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Medicine: Medicine (General): Computer applications to medicine. Medical informatics; Science: Science (General)
Website: http://www.journals.elsevier.com/data-in-brief/

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