Junko Komatsubara - My portal - researchmap

Profile Information

Affiliation: Director, Geological Survey of Japan, Collaboration Promotion Office, National Institute of Advanced Industrial Science and Technology

Degree: 博士（理学）(東京大学)

J-GLOBAL ID: 201101014914926979
researchmap Member ID: B000004301

Research Areas

2

Research History

4

Aug, 2023 - Present

Director, Geological Survey of Japan, Collaboration Promotion Office, National Institute of Advanced Industrial Science and Technology
Apr, 2022 - Jul, 2023

Geological Survey of Japan, Institute of Geology and Geoinformation, Geoinformatics Research Group, National Institute of Advanced Industrial Science and Technology
Apr, 2020 - Mar, 2022

Geological Survey of Japan, Institute of Geology and Geoinformation, Geoinformatics Research Group, National Institute of Advanced Industrial Science and Technology
Nov, 2013 - Mar, 2020

Senior Researcher, Geological Survey of Japan, Institute of Geology and Geoinformation, Quaternary Basin Research Group, National Institute of Advanced Industrial Science and Technology

Committee Memberships

10

Jul, 2023 - Present

評議員, 日本第四紀学会
May, 2023 - Present

地盤調査規格・基準委員会 WG2ボーリング、サンプリング, 地盤工学会
Aug, 2022 - Present

理事, 日本地質学会
Aug, 2022 - Present

利益相反マネージメント委員, 日本地質学会
Jul, 2022 - Present

各賞選考委員会, 日本地質学会
Apr, 2022 - Present

関東支部幹事, 日本地質学会
Nov, 2021 - Present

千葉県地質環境対策審議会委員, 千葉県
Aug, 2021 - Present

編集委員, 東京地学協会
Jan, 2020 - Present

運営委員, 日本堆積学会
Jan, 2020 - Dec, 2022

事務局、庶務委員長, 日本堆積学会

Papers

68

Formation of methane-derived dolomite concretions in Okinawa-Jima, Southwest Japan during the Early Pleistocene “Chinen Disturbance”

Ryo Matsumoto, Rika Takeuchi, Hiroshi Nakagawa, Tokiyuki Sato, Yasufumi Iryu, Hiroki Matsuda, Junko Komatsubara, Michio Sato

The Journal of the Geological Society of Japan, 129(1) 415-434, Aug 9, 2023
東京低地の埋没谷形状と地盤震動特性：上野-小岩測線での検討結果

Tsutomu Nakazawa, Ikuo Cho, Junko Komatsubara, Kentaro Sakata, Toshio Nakayama

The Journal of the Geological Society of Japan, 129(1) 263-270, Mar 31, 2023
Ground motion characteristics and the depth of the S-wave velocity discontinuity in the post-LGM incised-valley fills beneath the Tokyo Bay area, central Japan, based on microtremor surveys

Komatsubara Junko, Cho Ikuo, Sakata Kentaro, Nakazawa Tsutomu

The Journal of the Geological Society of Japan, 128(1) 29-42, Jan 15, 2022
Residual Dose of K-Feldspar post-IR Irsl of Beach-Shoreface Sands at Kujukuri, Eastern Japan

Toru Tamura, Junko Komatsubara, Saiko Sugisaki, Naohisa Nishida

GEOCHRONOMETRIA, 48(1) 364-378, Jan, 2021
Grain-size distribution of the postglacial deposits in the Kujukuri Plain, Chiba Prefecture, central Japan

KOMATSUBARA Junko

BULLETIN OF THE GEOLOGICAL SURVEY OF JAPAN, 71(6) 581-586, Dec 16, 2020
Stratigraphy of the latest Pleistocene to Holocene postglacial deposits beneath the Wakasu area, Koto-ku, Tokyo, central Japan: Sedimentary facies and depositional ages of core GS-KWS-1

Komatsubara Junko, Nakayama Toshio, Nakazawa Tsutomu

Journal of the Sedimentological Society of Japan, 79(1) 3-14, Nov 13, 2020
Accurate determination of the Pleistocene uplift rate of the NE Japan forearc from the buried MIS 5e marine terrace shoreline angle

Tabito Matsu'ura, Junko Komatsubara, Changjiang Wu

QUATERNARY SCIENCE REVIEWS, 212 45-68, May, 2019
Using Late and Middle Pleistocene tephrostratigraphy and cryptotephrostratigraphy to refine age models of Holes ODP1150A and ODP1151C, NW Pacific Ocean: A cross-check between tephrostratigraphy and biostratigraphy

Tabito Matsu'ura, Junko Komatsubara, Naokazu Ahagon

QUATERNARY GEOCHRONOLOGY, 47 29-53, Aug, 2018
MULTIFRACTAL ANALYSIS OF SEISMICALLY INDUCED SOFT-SEDIMENT DEFORMATION STRUCTURES IMAGED BY X-RAY COMPUTED TOMOGRAPHY

Yoshito Nakashima, Junko Komatsubara

FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY, 26(1), Feb, 2018
Stratigraphic evidence of historical and prehistoric tsunamis on the Pacific coast of central Japan: Implications for the variable recurrence of tsunamis in the Nankai Trough

Shigehiro Fujino

Quaternary Science Reviews, 201 147-161, 2018 Peer-reviewed
Urban Geological Map of the Northern Chiba Area

Tomonori Naya

Urban Geological Map, Geological Survey of Japan, 2018 Peer-reviewed
Use of amphibole chemistry for detecting tephras in deep-sea sequences (Chikyu C9001C cores) and developing a middle Pleistocene tephrochronology for NE Japan

Tabito Matsu'ura, Junko Komatsubara

QUATERNARY INTERNATIONAL, 456 163-179, Oct, 2017 Peer-reviewed
Difference in timing of maximum flooding in two adjacent lowlands in the Tokyo area caused by the difference in sediment supply rate

Junko Komatsubara, Yoshiro Ishihara, Rei Nakashima, Masao Uchida

QUATERNARY INTERNATIONAL, 455 56-69, Oct, 2017 Peer-reviewed
Relationship between Liquefaction Damage and Structure of Lithological Heterogeneity of Holocene Postglacial Deposits in the Downstream Basin of the Tone River, Central Japan

Junko KOMATSUBARA, Yoshiro ISHIHARA, Takeshi ISHIHARA, Osamu KAZAOKA, Kiyohide MIZUNO

Journal of Geography, 126(6) 715-730, Jun 1, 2017 Peer-reviewed
Using tephrostratigraphy and cryptotephrostratigraphy to re-evaluate and improve the Middle Pleistocene age model for marine sequences in northeast Japan (Chikyu C9001C)

Tabito Matsu'ura, Jun-Ichi Kimura, Qing Chang, Junko Komatsubara

QUATERNARY GEOCHRONOLOGY, 40 129-145, May, 2017
Discrimination between postglacial shallow marine deposits and Man-made strata based on sedimentological characteristics: Tokyo Bay coast, Chiba Prefecture, Japan

Komatsubara Junko, Miyachi Yoshinori, Nakazawa Tsutomu, Nakashima Rei, Kazaoka Osamu, Yoshida Takeshi

Annual Meeting of the Geological Society of Japan, 2017 450-450, 2017
Identification procedure of tsunami deposit

後藤和久, 菅原大助, 西村裕一, 藤野滋弘, 小松原純子, 澤井祐紀, 髙清水康博

津波工学研究報告 = Tsunami engineering, (33) 45-54, Jan, 2017
Seismically induced soft-sediment deformation structures revealed by X-ray computed tomography of boring cores

Yoshito Nakashima, Junko Komatsubara

TECTONOPHYSICS, 683 138-147, Jun, 2016
Paleoecological evidence for coastal subsidence during five great earthquakes in the past 1500 years along the northern onshore continuation of the Nankai subduction zone

Fujiwara Osamu, Fujino Shigehiro, Komatsubara Junko, Morita Yoshimune, Namegaya Yuichi

QUATERNARY INTERNATIONAL, 397 523-540, Mar 18, 2016 Peer-reviewed
Stratigraphy and geological structure of the Shimosa Group at Chiba to Funabashi area of Chiba Prefecture, central Japan

Naya Tomonori, Sakata Kentaro, Miyachi Yoshinori, Komatsubara Junko, Nakazato Hiroomi, Nakazawa Tsutomu

Annual Meeting of the Geological Society of Japan, 2016 67-67, 2016

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Misc.

62

産技連知的基盤部会地質地盤情報分科会令和4年度講演会「斜面災害低減に向けた地質地盤情報の利活用」開催報告—Report on Symposium "Utilization of Geological and Geotechnical Information for Reducing Slope Hazards"

野々垣進, 小松原純子, 納谷友規, 宮地良典

GSJ地質ニュース = GSJ chishitsu news, 12(4) 120-123, Apr, 2023
第36回地質調査総合センターシンポジウム「3次元で解き明かす東京都区部の地下地質」開催報告—Report on Symposium "3D visualization of subsurface geology beneath central Tokyo"

小松原純子, 野々垣進, 中澤努, 宮地良典

GSJ地質ニュース = GSJ chishitsu news, 11(5) 147-150, May, 2022
産業技術連携推進会議知的基盤部会地質地盤情報分科会令和3年度講演会「地質リスクの低減に向けた地質調査・データクオリティ・解析技術」開催報告—Report on Symposium "Geological survey, data quality, and analysis technology for reducing geological risks"

11(2) 56-58, Feb, 2022
Urban Geological Map of Central Tokyo : Three-dimensional Geological Modeling Method and Website for Disclosure

GSJ地質ニュース = GSJ chishitsu news, 10(7) 143-147, Jul, 2021
Post-LGM deposits beneath the Tokyo Lowland

GSJ地質ニュース = GSJ chishitsu news, 10(7) 148-152, Jul, 2021
Depth of the S-wave velocity discontinuity in the post-LGM incised-valley fills beneath the Tokyo Bay area : How deep is the base of "soft" strata ?

Komatsubara Junko, Cho Ikuo, Sakata Kentaro, Nakazawa Tsutomu

Annual Meeting of the Geological Society of Japan, 2021 157, 2021
Ground-type classification based on the 3D Urban Geological Map of central Tokyo and the corresponding ground motion characteristics

Nakazawa Tsutomu, Cho Ikuo, Komatsubara Junko, Naya Tomonori, Nonogaki Susumu, Miyachi Yoshinori, Ozaki Masanori, Sakata Kentaro, Nakazato Hiroomi, Suzuki Takehiko …

Annual Meeting of the Geological Society of Japan, 2021 158, 2021
Large-scale cross-stratified Eocene fluvial sandstone exposed at the Mount Laojin National Geopark, Yunnan Province, China

Komatsubara Junko

Journal of the Sedimentological Society of Japan, 78(1) 2-2, Nov 30, 2019
GSJ's historical transfer to Tsukuba : Concluding remarks

GSJ地質ニュース = GSJ chishitsu news, 8(10) 277-280, Oct, 2019
「地質情報展2019北海道 : 明治からつなぐ地質の知恵」開催報告—Report on Geoscience Exhibition in Hokkaido 2019

野々垣進, 斎藤眞, 宮地良典, 藤原治, 伊尾木圭衣, 内野隆之, 昆慶明, 藤井孝志, 角井朝昭, 森田啓子 …

GSJ地質ニュース = GSJ chishitsu news, 8(8) 217-219, Aug, 2019
Report on the lecture of geomorphological interpretation

GSJ地質ニュース = GSJ chishitsu news, 8(5) 128-131, May, 2019
The 17th GSJ Geosalon "Bumpy Japanese islands : Unraveling the history of the earth with analog model"

8(5) 132-135, May, 2019
GSJ's historical transfer to Tsukuba(7)Influence on labor union activities, and the project of geological maps covering the specified areas for earthquake prediction

GSJ地質ニュース = GSJ chishitsu news, 8(4) 106-110, Apr, 2019
GSJ's historical transfer to Tsukuba(5)From the view point of an administrative staff in GSJ

GSJ地質ニュース = GSJ chishitsu news, 8(2) 55-59, Feb, 2019
GSJ's historical transfer to Tsukuba(4)Early period of the Marine Geology Department in GSJ

GSJ地質ニュース = GSJ chishitsu news, 8(1) 20-26, Jan, 2019
Report of 9th International Conference on Asian Marine Geology and a post-conference fieldtrip

GSJ地質ニュース = GSJ chishitsu news, 8(1) 10-15, Jan, 2019
Preliminary report of ground motion characteristics of the Pleistocene and Holocene incised-valley fills in Tokyo Bay area

Komatsubara Junko, Nakazawa Tsutomu, Cho Ikuo, Sakata Kentaro

Annual Meeting of the Geological Society of Japan, 2019 284, 2019
Cenozoic stratigraphy of the area of 1:200,000 quadrangle geological map of the Noheji District

Kudo Takashi, Komatsubara Junko, Uchino Takayuki

Annual Meeting of the Geological Society of Japan, 2019 432, 2019
GSJ's historical transfer to Tsukuba(1)Facility design of GSJ

GSJ地質ニュース = GSJ chishitsu news, 7(4) 115-117, Apr, 2018
Formation of river terraces - an example of the climate controlled terraces

Yagishita Koji, Komatsubara Junko

Annual Meeting of the Geological Society of Japan, 2018 204, 2018

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Books and Other Publications

2

列島自然めぐり日本の川東日本編

北中, 康文, 斎藤, 眞, 小松原, 純子 (Role: Supervisor (editorial))

文一総合出版, May, 2023 (ISBN: 9784829988152)
列島自然めぐり日本の川西日本編

北中, 康文, 斎藤, 眞, 小松原, 純子 (Role: Supervisor (editorial))

文一総合出版, May, 2023 (ISBN: 9784829988169)

Professional Memberships

7