| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
| 0.59 | CHEM |
1990.04 | Personal communication, Geological Survey of India | | | | B.G.Rao |
| 0.46 | GRAV |
1990.04 | Personal communication, Govern. Chem. Lab., Brisbane, Australia | | | | H.A.Olszowy, J.Hegarty, P.Smith, R.Sumner, S.Mckeo |
| 0.40 | CHEM |
1990.05 | Personal Communication, U.S. Geological Survey, Menlo Park | | | | J.S.Kane, T.Fries and N.H.Elsheimer |
| 0.33 | GRAV |
1990.04 | Elemental concentrations in nine new GSJ rock reference samples 'sedimentary rock series' | Geost. Newsletter | 14 | 1-5 | S.Terashima, A.Ando, T.Okai, Y.Kanai, M.Taniguchi, |
| 0.52 | GRAV |
1991.09 | Major and trace elemental abundances of the GSJ sedimentary rock reference samples | J.Japan Assoc.Min. Pet.Econ.Geol | 86 | 432-437 | K.Ishikawa,T.Yoshida and |
| 0.24 | GRAV |
1992 | Personal Communication,Dowa Engineering Co., Ltd.(Anal.Iijima Bunseki Center) | | | | Y.Kinryu |
| 0.22 | GRAV |
1993.11 | Personal Communication, Toshiba, Japan | | | | M.Konuma and Y.Yokote |
| 0.140 | CHEM |
1994 | Personal Communication, Czech Geol. surv, Czech Republic | | | | I.Rubeska |
| 0.40 | GRAV |
1997 | Personal communication,GSH,Japan | | | | K.Suga |