검색결과 : 1건
| No. | Article |
|---|---|
| 1 |
Radiometric age determination of tonsteins and stratigraphic constraints for the Lower Permian coal succession in southern Parana Basin, Brazil Guerra-Sommer M, Cazzulo-Klepzig M, Santos JOS, Hartmann LA, Ketzer JM, Formoso MLL International Journal of Coal Geology, 74(1), 13, 2008 |