Research field (2)：
Solid earth science
, Biogeoscience
Research keywords (10)：
安定同位体
, 微生物
, 温泉
, トラバーチン
, 炭酸塩岩
, stable isotope
, bacteria
, Hot spring
, travertine
, carbonate rock
Research theme for competitive and other funds (4)：
2019 - 2023 太古の環境と微生物復元につなげる温泉成シリカ堆積物の長期観測
2018 - 2023 Understanding of causal relationship between extreme climate and animal evolution in the Ediacaran ocean
2014 - 2017 Microbial processes of micro-scale lamination in hot spring deposits
2010 - 2012 Geomicrobiological studies of hot spring deposits for ancient earth environment reconstruction.
Papers (38)：
T.Okumura, C.Takashima, K.Yanagawa, A.Harijoko A.Kano. Stromatolite formation by Anaerolineae-dominated microbial communities in hot spring travertine in North Sumatra, Indonesia. 2022. 440. 106263. 1-19
SUGIHARA Chiya, TAKASHIMA Chizuru, YANAGAWA Katsunori, MORI Taiki, OKUMURA Tomoyo, HARIJOKO Agung. Various Microbial Mat Developing in Hot Spring on Northern Sumatra(Photo). Earth Science (Chikyu Kagaku). 2015. 69. 3. 141-142
Okumura Tomoyo, Takashima Chiduru. P-58 The process forming daily lamination of a aragonite travertine. 2007. 114. 244-244
Kano, A, Takashima, C, Ohtsuka, S. Hot-springs in eastern Kyushu and their related sedimentation and microbial processes. ISC 2006 Field Excursion Guidebook FE-A. 2006. 10. 1-16
Books (6)：
Geomicrobiological Properties and Processes of Travertine
Springer 2018
