Early Chemical and Petrographic Changes During Peat-to-Lignite Transformations Bailey, A. M. ; Cohen, A. D. ; Orem, W. H. ; Riese, W. C. ; Thibodeaux, S. Abstract Publication: Ninth Annual V. M. Goldschmidt Conference Pub Date: August 1999 Bibcode: 1999nag..conf.7189B