• Chapter contents
• Abstract
• Introduction
• Methods and materials
• Sampling and sample handling
• Constant-flow apparatus
• Backpressure saturation
• Constant-flow tests
• Data reduction
• Imaging microfabric
• Energy dispersive X-ray spectroscopy
• Results
• Textural and compositional characterization
• Microfabric statistics
• Permeability
• Acknowledgments
• References
• Figures
• F1. NanTroSEIZE site locations.
• F2. Lithology, stratigraphy, and bedding dips.
• F3. X-ray CT and core images.
• F4. Constant-flow permeability test.
• F5. Flow-through testing response.
• F6. Geometric relations of bedding and orientation.
• F7. ESEM images of specimens tested for permeability.
• F8. ESEM image and major element spectrum.
• F9. Grain size differences.
• F10. Pyrite framboid.
• F11. ESEM images of different grain sizes.
• F12. Uniform grain size distribution.
• F13. Orientation of grains.
• F14. Cumulative frequency curves of grain orientations.
• F15. Index of orientation.
• F16. Vertical intrinsic permeability.
• F17. Relation between intrinsic permeability and post-test porosity.
• Tables
• T1. Specimen properties before and after permeability tests.
• T2. Statistics of preferred orientation of microfabric.
• T3. Average values of permeability and hydraulic conductivity.
• T4. Flow-through permeability test results.
• Appendix
• Appendix figures
• AF1. Hydraulic gradient versus discharge velocity, Sample 3R-1, 51 cm.
• AF2. Hydraulic gradient versus discharge velocity, Sample 4R-2, 98 cm.
• AF3. Hydraulic gradient versus discharge velocity, Sample 6R-1, 64 cm.
• AF4. ESEM images of specimens, Sample 3R-1, 51 cm.
• AF5. Documentation of microfossils.
• AF6. ESEM images of specimens, Sample 4R-2, 98 cm.
• AF7. Documentation of pyrite.
• AF8. ESEM images of specimens, Sample 6R-1, 64 cm.
• AF9. Documentation of barite.
• PDF file

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doi:10.2204/iodp.proc.348.201.2017

Acknowledgments

Samples were provided by the Integrated Ocean Drilling Program (IODP). We thank the Mantle Quest Japan crew, Marine Works Japan technicians, and shipboard scientists aboard the D/V Chikyu for their assistance in acquisition of samples during Expedition 348. The Consortium for Ocean Leadership provided funding (Task Order T348A58 to M. Underwood). We thank W. Likos and J. Bowders for valuable guidance on use of the constant-flow apparatus. E. Screaton provided a review of the manuscript.

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