| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
|---|
| <0.8 | AA |
1984.1 | Personal communication, Geological Survey Prague, Czechoslovakia | | | | B.Moldan |
| 0.5 | OES |
1984.03 | Personal communication, DDR Zentrales Geologisches Institut, Berlin | | | | Gotte |
| <0.25 | AA |
1987.07 | Personal communication, BMG, Philippines | | | | E.M.Macalalad |
| 0.103 | AA |
1988.02 | Personal communication, USSR Academy of Sciences Siberian Branch | | | | V.P.Afonin |
| 0.059 | NAA |
1988.09 | The noble metals in GSJ rock reference samples(Abst.,in Japanese) | 32nd Symp. Radiochem. | | 174-175 | K.Arai, Y.Saito and K.Kimura |
| 0.060 | INAA |
1989.04 | Personal communication, Aoyama Gakuin University, Japan | | | | K.Kimura and K.Arai |
| 0.100 | OES |
1989.1 | Determination of trace abundances of Ag, B, Ge, Mo, Sn, Tl and W in geochemical reference samples by atomic emission spectrography | Geost. Newsletter | 13 | 269-272 | A.I.Kuznetsova and N.L.Chumakova |
| 0.055 | AA |
1991.01 | Personal communication, Geological Survey of Japan | | | | S.Terashima |
| 0.06 | OES |
1999 | Personarl Communication, Institute of Geology, Estonia | | | | T. Kiipli |