| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
|---|---|---|---|---|---|---|---|
| 4.92 | NAA | 1998 | Personal communication,Lucas Heights Science and Technology center ,Australia | H.Waldron | |||
| 5.67 | ICPMS | 1994 | Personal Communication,WSU GeoAnalytical Laboratory, USA | C. Knaack, S. Cornelius and P. Hooper | |||
| 5.67 | ICPMS | 2000 | Personarl Communication,Washington State University | D. Johnson | |||
| 3.2 | OES | 1999 | Personarl Communication, Institute of Geology, Estonia | T. Kiipli |