TY  - GEN
AU  - Swadley,W.C
TI  - The marble hillbed: on offshore bar-tidal channel complex in the Upper Ordovician drakes formation of Kentuchy
T2  - U. S. Geological survey professional paper, 1126-D
KW  - Stratigraphie
KW  - Sédimentation estuaire
KW  - Ordovicien
KW  - Etats Unis
KW  - Kentucky
N1  - bibliogr. p. D8
ER  -