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Par Collection Par Auteur- LEEMAN, W. P. (1)
- SMITH, D. R. (1)
- 1982 (1)
- Journal of Research, 3, 329-335) on the basis of field relations, Fe-Mg phenocryst assemblage, and C chronology and are valuable marker beds for regional stratigraphic studies. In this study modal abundances and mineral compositions were determined (via