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Towards the reconstruction of the shallow plumbing system of the Barombi Mbo Maar (Cameroon) Implications for diatreme growth processes of a polygenetic maar volcano
30 Aug 2015 | Contributor(s): CHAKO TCHAMABE Boris, Takeshi Ohba, Gabor Kereszturi, Karoly Nemeth, Aka Festus Tongwa, Dieudone Youmen, Isabel Meza, Yasuo Miyabuchi, Seigo Ooki, Greg Zinkeng Tanyileke, Hell Joseph Victor
Understanding the mechanisms involved in the formation of maars and their diatreme growth processes has been a subject of contention. While there is no direct evidence of the presence of diatremes beneath most of the young maars, their existence is inferred based on the amount and type of country...
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Contribution of methane to total gas pressure in deep waters at lakes Nyos and Monoun (Cameroon, West Africa)
17 Jul 2014 | Contributor(s): Issa, Takeshi Ohba, Wilson Fangtong, Alain Fouepe, CHAKO TCHAMABE Boris, Yukata Yoshida, Minoru Kusakabe, Sigha Kamdjou, Urumu TSUNOGAI, Yu Uginuma, Greg Zinkeng Tanyileke, Hell J.V.
https://www.jstage.jst.go.jp/article/geochemj/47/3/47_2.0250/_article
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CVL8- Abstract Book
25 Aug 2013 | Contributor(s): CHAKO TCHAMABE Boris, Takeshi Ohba, Issa, Seigo Ooki, Mengnjo Jude Wirmvem, Yuka Sasaki, Takuya Ajiro, dmitri rouwet
This is a collection of works presented at the 8th workshop of the IAVCEI-Commission on Volcanic lakes.
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Qualitative insights (Cl, D) into evaporative degassing from active crater lakes: theoretical background and practical tools
23 Aug 2013 | Contributor(s): dmitri rouwet, Takeshi Ohba
This work provides the theoretical background and necessary practical tools to study one of the most spectacular natural features: vigorous evaporation from active crater lakes. We will give qualitative insights (lake water chemical –Cl content, and isotopical composition) rather than quantify...
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CVL8-Japan, Abstract book
23 Aug 2013 | Contributor(s): Takeshi Ohba, CHAKO TCHAMABE Boris, Issa, Seigo Ooki, Mengnjo Jude Wirmvem, Yuka Sasaki, Takuya Ajiro, dmitri rouwet
The 8th Workshop on Volcanic Lakes was held in Japan from 25 to 31 July 2013. Two days of talks were held in Kumamoto, near Aso Volcano, Central Kyushu. The abstracts of the presented studies is attached here.