Proc. IODP, 311, Data report: gas hydrate structural and compositional characterization by spectroscopic analysis, IODP Expedition 311


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Chapter contents Abstract Introduction Methods Raman spectroscopy NMR spectroscopy Cage occupancy ratio calculation Results and discussion Site U1328: Sample 311-U1328B-2H-HydCC (Hester, 2007) Site U1328: Sample 311-U1328E-2X-Hyd17 Cage occupancy and hydration number Presence of H₂S Estimates of sample degradation due to recovery Conclusions Acknowledgments References Figures F1. Raman spectrum of hydrate, Sample H1. F2. NMR spectrum of hydrate, Sample H1. F3. Raman spectrum of hydrate, Sample H2. F4. Raman spectra of synthetic sI methane hydrate and water ice. F5. Comparison of Raman spectra from Sample H1. F6. Molar percentage sI methane hydrate. Table T1. Absolute occupancies and hydration numbers, Sample H2. PDF file		Previous \| Next doi:10.2204/iodp.proc.311.202.2008 Acknowledgments We thank the Integrated Ocean Drilling Program and all involved in Expedition 311, especially Michael Riedel and Tim Collett, for making these samples available to us. The authors thank H. Lu for his helpful review of this work. K. Hester was supported through National Undersea Research Program grant UAF03-0098. Top of page \| Previous \| Next

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