| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
|---|---|---|---|---|---|---|---|
| <2 | AA | 1990.04 | Personal communication, Geological Survey of India | B.G.Rao | |||
| <2 | OES | 1990.05 | Personal Communication, U.S. Geological Survey, Lakewood | J.S.Kane, J.G.Crock, P.H.Briggs and D.L.Fey | |||
| 0.006 | AA | 1991.01 | Personal communication, Geological Survey of Japan | S.Terashima | |||
| <0.8 | AA | 1994 | Personal Communication, Czech Geol. surv, Czech Republic | I.Rubeska |