See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/224709733 A Novel Vanadyl Alkylporphyrins from Geological Samples: A Possible Derivative of Divinylchlorophylls or... Article · February 2007 DOI: 10.1246/cl.2007.706 CITATIONS 8 READS 18 4 authors, including: Some of the authors of this publication are also working on these related projects: Illuminating the 'black box' of brown food webs View project Yuichiro Kashiyama Ritsumeikan University 31 PUBLICATIONS 572 CITATIONS SEE PROFILE Ryuji Tada The University of Tokyo 208 PUBLICATIONS 3,282 CITATIONS SEE PROFILE Naohiko Ohkouchi Japan Agency for Marine-Earth Science Tech… 240 PUBLICATIONS 3,498 CITATIONS SEE PROFILE All content following this page was uploaded by Yuichiro Kashiyama on 27 December 2016. The user has requested enhancement of the downloaded file.