ALBERT

Description / Table of Contents: Thirty-nine species (31 Monogonota and 8 Bdelloidea) are described from Macquarie Island. Thirty-eight of these are new records for the island.

Description / Table of Contents: There is much interest in gas hydrates in relation to their potential role as an importantdriver for climate change and as a major new energy source; however, many questionsremain, not least the size of the global hydrate budget. Much of the current uncertaintycentres on how hydrates are physically stored in sediments at a range of scales. Thisvolume details advances in our understanding of sediment-hosted hydrates, and containspapers covering a range of studies of real and artificial sediments containing bothmethane hydrates and CO2 hydrates. The papers include an examination of the techniquesused to locate, sample and characterize hydrates from natural, methane-rich systems, soas to understand them better. Other contributions consider the nature and stability ofsynthetic hydrates formed in the laboratory, which in turn improve our ability to makeaccurate predictive models.

Description / Table of Contents: There is much interest in gas hydrates in relation to their potential role as an important driver for climate change and as a major new energy source; however, many questions remain, not least the size of the global hydrate budget. Much of the current uncertainty centres on how hydrates are physically stored in sediments at a range of scales. This volume details advances in our understanding of sediment-hosted hydrates, and contains papers covering a range of studies of real and artificial sediments containing both methane hydrates and CO2 hydrates. The papers include an examination of the techniques used to locate, sample and characterize hydrates from natural, methane-rich systems, so as to understand them better. Other contributions consider the nature and stability of synthetic hydrates formed in the laboratory, which in turn improve our ability to make accurate predictive models.

Description / Table of Contents: A. J. G. Notholt and I. Jarvis: Preface / Geological Society, London, Special Publications, 52:v-viii, doi:10.1144/GSL.SP.1990.052.01.01 --- P. J. Cook, J. H. Shergold, W. C. Burnett, and S. R. Riggs: Phosphorite research: a historical overview / Geological Society, London, Special Publications, 52:1-22, doi:10.1144/GSL.SP.1990.052.01.02 --- G. H. McClellan and S. J. Van Kauwenbergh: Mineralogy of sedimentary apatites / Geological Society, London, Special Publications, 52:23-31, doi:10.1144/GSL.SP.1990.052.01.03 --- Jacques Lucas, El Mâti El Faleh, and Liliane Prevot: Experimental study of the substitution of Ca by Sr and Ba in synthetic apatites / Geological Society, London, Special Publications, 52:33-47, doi:10.1144/GSL.SP.1990.052.01.04 --- Y. Nathan: Humic substances in phosphorites: occurrence, characterization and significance / Geological Society, London, Special Publications, 52:49-58, doi:10.1144/GSL.SP.1990.052.01.05 --- G. W. O’Brien, A. R. Milnes, H. H. Veeh, D. T. Heggie, S. R. Riggs, D. J. Cullen, J. F. Marshall, and P. J. Cook: Sedimentation dynamics and redox iron-cycling: controlling factors for the apatite—glauconite association on the East Australian continental margin / Geological Society, London, Special Publications, 52:61-86, doi:10.1144/GSL.SP.1990.052.01.06 --- D. T. Heggie, G. W. Skyring, G. W. O’Brien, C. Reimers, A. Herczeg, D. J. W. Moriarty, W. C. Burnett, and A. R. Milnes: Organic carbon cycling and modern phosphorite formation on the East Australian continental margin: an overview / Geological Society, London, Special Publications, 52:87-117, doi:10.1144/GSL.SP.1990.052.01.07 --- J. M. McArthur and A. Herczeg: Diagenetic stability of the isotopic composition of phosphate-oxygen: palaeoenvironmental implications / Geological Society, London, Special Publications, 52:119-124, doi:10.1144/GSL.SP.1990.052.01.08 --- Peter S. Balson: Episodes of phosphogenesis and phosphorite concretion formation in the North Sea Tertiary / Geological Society, London, Special Publications, 52:125-137, doi:10.1144/GSL.SP.1990.052.01.09 --- S. J. Van Kauwenbergh and G. H McClellan: Comparative geology and mineralogy of the southeastern United States and Togo phosphorites / Geological Society, London, Special Publications, 52:139-155, doi:10.1144/GSL.SP.1990.052.01.10 --- Michel Lamboy: Microbial mediation in phosphatogenesis: new data from the Cretaceous phosphatic chalks of northern France / Geological Society, London, Special Publications, 52:157-167, doi:10.1144/GSL.SP.1990.052.01.11 --- Zeev Lewy: Pebbly phosphate and granular phosphorite (Late Cretaceous, southern Israel) and their bearing on phosphatization processes / Geological Society, London, Special Publications, 52:169-178, doi:10.1144/GSL.SP.1990.052.01.12 --- Y. Nathan, D. Soudry, and A. Avigour: Geological significance of carbonate substitution in apatites: Israeli phosphorites as an example / Geological Society, London, Special Publications, 52:179-191, doi:10.1144/GSL.SP.1990.052.01.13 --- Abdulkader M. Abed and Khalid Fakhouri: Role of microbial processes in the genesis of Jordanian Upper Cretaceous phosphorites / Geological Society, London, Special Publications, 52:193-203, doi:10.1144/GSL.SP.1990.052.01.14 --- Craig R. Glenn: Depositional sequences of the Duwi, Sibâîya and Phosphate Formations, Egypt: phosphogenesis and glauconitization in a Late Cretaceous epeiric sea / Geological Society, London, Special Publications, 52:205-222, doi:10.1144/GSL.SP.1990.052.01.15 --- Yu. N. Zanin, K. V. Zverev, and E. P. Solotchina: Clay minerals and phosphorite genesis in the Upper Cretaceous of the northern Siberian Platform / Geological Society, London, Special Publications, 52:223-235, doi:10.1144/GSL.SP.1990.052.01.16 --- Karl B. Föllmi: Condensation and phosphogenesis: example of the Helvetic mid-Cretaceous (northern Tethyan margin) / Geological Society, London, Special Publications, 52:237-252, doi:10.1144/GSL.SP.1990.052.01.17 --- A. V. Ilyin and H. N. Heinsalu: Early Ordovician shelly phosphorites of the Baltic Phosphate Basin / Geological Society, London, Special Publications, 52:253-259, doi:10.1144/GSL.SP.1990.052.01.18 --- Peter F. Howard: The distribution of phosphatic facies in the Georgina, Wiso and Daly River Basins, Northern Australia / Geological Society, London, Special Publications, 52:261-272, doi:10.1144/GSL.SP.1990.052.01.19 --- T. H. Donnelly, J. H. Shergold, P. N. Southgate, and C. J. Barnes: Events leading to global phosphogenesis around the Proterozoic/Cambrian boundary / Geological Society, London, Special Publications, 52:273-287, doi:10.1144/GSL.SP.1990.052.01.20 --- M. D. Brasier: Phosphogenic events and skeletal preservation across the Precambrian-Cambrian boundary interval / Geological Society, London, Special Publications, 52:289-303, doi:10.1144/GSL.SP.1990.052.01.21 --- R. Choudhuri: Two decades of phosphorite investigations in India / Geological Society, London, Special Publications, 52:305-311, doi:10.1144/GSL.SP.1990.052.01.22 --- M. S. Sisodia and D. S. Chauhan: The influence of magnesium ions during the formation of stromatolitic phosphorites of Udaipur, Rajasthan, India / Geological Society, London, Special Publications, 52:313-320, doi:10.1144/GSL.SP.1990.052.01.23