2013 Fiscal Year Final Research Report
Characterization of hot-spring microbial mat for understanding ancient ocean environments
| Project/Area Number |
24654163
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Geology
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| Research Institution | Kyushu University |
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Principal Investigator |
KANO Akihiro 九州大学, 比較社会文化研究科(研究院), 教授 (60231263)
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| Co-Investigator(Renkei-kenkyūsha) |
TAKASHIMA Chiduru 佐賀大学, 文化教育学部, 准教授 (10568348)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | トラバーチン / ストロマトライト |
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| Research Abstract |
Microbial mat and film on hot-spring travertines were studied for understanding developmental processes of stromatolites that had been widely debeloped in ancient oceans. Togetherwith a post-doc reseacher, I performed continuous observation of sedimentary texture and water chemistry. Genetic analyses were also done for the specimens collected from the travertine surfaces. The results of these analyses indicated that the laminated textures were basically daily and refrected from metabolic cycle of photosynthesic bacteria including cyanobacteria. Results from study localities (e.g., Nagayu hot-sprng in Ohita Prefecture and Myoken hot-spring in Kagoshima Prefecture) were published in reseach papers including three international journal papers. Study in Nagayu hot-spring was especially important in terms with similality with the ancient stromatolites.
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Research Products
(14 results)
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[Journal Article] (2013a) Processes forming daily lamination in a microbe-rich travertine under low flow condition at the Nagano-yu Hot Spring, Southwestern Japan2013
Author(s)
Okumura, T., Takashima, C., Shiraishi, F., Nishida, S., Kano, A.
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Journal Title
Geomicrobiology Journal
Volume: Vol. 30
Pages: 910-927
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[Journal Article] (2012) Textural transition in an aragonite travertine formed under various flow conditions at Pancuran Pitu, Central Java, Indonesia2012
Author(s)
Okumura, T., Takashima, C., Shiraishi, F., Akmaluddin, Kano, A.
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Journal Title
Sedimentary Geology
Volume: Vol. 265-266
Pages: 195-209
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