| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
|---|
| 40 | UU |
1990.05 | Personal Communication, U.S. Geological Survey, Lakewood | | | | J.S.Kane, J.G.Crock, R.M.O'Leary, K.R.Kennedy and |
| <700 | NAA |
1990 | Personal Communication, Los Aramos, USA | | | | E.S.Gladney |
| 33 | AA |
1994 | Personal Communication, Czech Geol. surv, Czech Republic | | | | I.Rubeska |
| 33 | AA |
1994 | Personal communication, Geological Survey of Japan | | | | S.Terashima |
| 30 | AA |
1997 | Personal Communication,SKK,Japan | | | | |
| 36 | OES |
1999 | Personarl Communication, Institute of Geology, Estonia | | | | T. Kiipli |