TY  - SER
AU  - Stith,David
ED  - Symposium on industrial minerals of the upper Midwest
TI  - Chemical composition, stratigraphy, and depositional environments of the Black River Group (middle Ordovician), southwestern Ohio
SN  - 00167606
KW  - Analyse chimique
KW  - Stratigraphie
KW  - Etude milieu
KW  - Roche carbonatée
KW  - Ordovicien moyen
KW  - Etats Unis
KW  - Ohio
KW  - Groupe Black River
N1  - <Donation ORSTOM>; bibliogr. p. 633
ER  -