| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
| 0.0725 | XRF |
1990.01 | Personal communication, IFREMER, Centre de Brest, France | | | | J.Etoubleau |
| 0.0705 | OES |
1990.05 | Personal Communication, U.S. Geological Survey, Lakewood | | | | J.S.Kane, J.G.Crock, P.H.Briggs and D.L.Fey |
| 0.0440 | ICPES |
1993 | Determination of trace elements in calcite by ICP-AES after coprecipitation with indium sulfide | Bunseki Kagaku | 42 | 305-309 | K.Yamazaki, H.Tsuji, K.Chayama, Y.Tamari and Y.Kus |
| 0.0750 | NAA |
1990 | Personal Communication, Los Aramos, USA | | | | E.S.Gladney |