| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
|---|
| 1 | XRF |
1996 | Personal communication, Bremen Univ., Germany | | | | M.Zuther |
| 1.5 | XRF |
1996 | Personal communication, Institut fur Geowissenschaften,Germany | | | | Frau N.Groschopf |
| 0.31 | ICPMS |
1998 | Personal communication,M.Watanabe,MKK,Tokyo, Japan | | | | M.Watanabe |
| 0.32 | HAA |
1998 | Personal communication,GSJ,Japan | | | | S.Terashima |
| 0.8 | ICPMS |
1998 | Personal communcation,Universite de Liege,Belgium | | | | I.Roelandts |
| <1 | EXRF |
2002 | Personal Communication, Southern Connecticut State Univ., USA | | | | T. Fleming |