All abstracts by Ryuji Tada at Goldschmidt2006
| (2006) Nitrogen and carbon isotopic analyses on sedimentary porphyrins of organic-rich shales from Miocene and mid-Cretaceous
Kashiyama Y, Ogawa NO, Chikaraishi Y, Suga H, Tada R, Kitazato H & Ohkouchi N |
| (2006) Nitrogen isotopic composition of chlorophylls and porphyrins in geological samples as tools for reconstructing paleoenvironment
Ohkouchi N, Kashiyama Y, Chikaraishi Y, Ogawa N, Tada R & Kitazato H |