| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
|---|
| 10 | OES |
1990.04 | Personal communication, Geological Survey of India | | | | B.G.Rao |
| 8 | XRF |
1990.04 | Personal communication, Govern. Chem. Lab., Brisbane, Australia | | | | H.A.Olszowy, J.Hegarty, P.Smith, R.Sumner, S.Mckeo |
| <10 | OES |
1990.05 | Personal Communication, U.S. Geological Survey, Lakewood | | | | J.S.Kane, J.G.Crock, P.H.Briggs and D.L.Fey |
| 3.1 | FAA |
1990 | Personal communication, U.S. Geological Survey | | | | H.N.Elsheimer and |
| 1 | XRF |
1996 | Personal communication,Bremen Univ., Germany | | | | M.Zuther |
| 3.1 | HAA |
1998 | Personal communication,GSJ,Japan | | | | S.Terashima |
| 4 | OES |
1999 | Personarl Communication, Institute of Geology, Estonia | | | | T. Kiipli |
| 3.1 | EXRF |
2002 | Personal Communication, Southern Connecticut State Univ., USA | | | | T. Fleming |