| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
|---|---|---|---|---|---|---|---|
| 0.064 | AA | 1991.01 | Personal communication, Geological Survey of Japan | S.Terashima | |||
| 0.1 | AA | 1997 | Personal Communication,SKK,Japan | ||||
| <0.1 | AA | 1998 | Personal communication,SKK,Japan | ||||
| <2 | EXRF | 2002 | Personal Communication, Southern Connecticut State Univ., USA | T. Fleming |