Preface COOK, P.J., SHERGOLD, J.H., BURNETT, W.C. & RIGGS, S.R. Phosphorite Research: a historical overview McCLELLAN, G.H. & VAN KAUWENBERGH, S.J. Mineralogy of Sedimentary apatites LUCAS, J., EL FALEH, E.M. & PREVOT, L. Experimental study of the substitution of Ca by Sr and Ba in synthetic apatites NATHAN, Y. Humic substances in phosphorites: occurrence, characterization and Significance OBRIEN, G.W., MILNES, A.R., VEEH, H.H., HEGGIE, D.T., RIGGS, S.R., CULLEN, D.J., MARSHALL, J.F. & COOK, P.J. Sedimentation dynamics and redox iron-cycling: Controlling factors for the apatite-glauconite association on the East Australian Continental margin HEGGIE, D.T., SKYRING, G.W., OBRIEN, G.W. REIMERS, C., HERCZEG, A., MORIARTY, D.J.W., BURNETT, W.C., & MILNES, A.R. Organic carbon cycling and Modern phosphorite formation on the East Australian continental margin: an overview McARTHUR, J.M., & HERCZEG, A. Diagenetic stability of the isotopic composition of Phosphate-oxygen: palaeoenvironmental implications BALSON, P.C. Episodes of phosphogenesis and phosphorite concretion formation in the North Sea Tertiary VAN KAUWENBERGH, S.J. & McCLELLAN, G.H. Comparative geology and Mineralogy of the southeastern United States and Togo phosphorites LAMBOY, M. Microbial mediation in phosphatogenesis: new data from the Cretaceous Phosphatic chalks of northern France LEWY, Z. Pebbly phosphate and granular phosphorite (Late Cretaceous, southern Israel) And their bearing on phosphatization processes NTHAN, Y., SOUDRY, D. & AVIGOUR, A. Geological significance of carbonate Substitution in apatites: Israeli phosphorites as an example ABED, A.M. & FAKHOURI, K. Role of microbial processes in the genesis of Jordanian Upper Cretaceous phosphorites GLENN, C.R. Depositional sequences of the Duwi, Sibaiya and Phosphate Formations, Egypt: phosphogenesis and glauconitization in a Late Cretaceous epeiric sea ZANIN, YU. N., ZVEREV, K.V. & SOLOTCHINA, E.P. Clay minerals phosphorite Genesis in the Upper Cretaceous of the northern Siberian Platform FOLLMI, K.B. Condensation and phosphogenesis: example of the Helvetic mid-Cretaceous (northern Tethyan margin) ILYIN, A.V. & HEINSALU, H.N. Early Ordovician shelly phosphorites of the Baltic Basin HOWARD, P.F. The distribution of phosphatic facies in the Georgia, Wiso and Daly River Basins, Northern Australia DONNELLY, T.H., SHERGOLD, J.H., SOUTHGATE, P.N. & BARNES, C.J. Events Leading to global phosphogenesis around the Proterozoic/Cambrian boundary BRASIER, M.D. Phosphogenic events and skeletal preservation across the Precambrian- Cambrian boundary interval CHOUDHURI, R. Two decades of phosphorite investigations in India &bull SISODIA, M.S. & CHAUHAN, D.S. The influence of magmesium ions during the Formation of stromatolitic phosphorites of Udaipur, Rajasthan, India &bull ; Index