Proc. IODP, 317, Data report: preliminary investigation of carbonate-cemented zones in IODP cores from Canterbury Basin, South Island, New Zealand

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Chapter contents Abstract Introduction Geologic setting and Expedition 317 background Methodology Thin section imaging and point counts Results and observations Lithologies XRD and SEM Isotopes Acknowledgments References Figures F1. Location map. F2. Lithology and unit boundaries. F3. BSE micrograph. F4. Isotopic data. Tables T1. Sample identification and analysis. T2. Porosity estimation and bioclastic content. T3. Thin section point count data. T4. XRD analysis. T5. SEM-EDS elemental analysis. T6. Stable isotope analysis. PDF file			Previous \| Next doi:10.2204/iodp.proc.317.204.2015 Data report: preliminary investigation of carbonate-cemented zones in IODP cores from Canterbury Basin, South Island, New Zealand¹ David Carson² and Kathleen M. Marsaglia² Abstract A selection of 30 indurated (cemented) sediment samples from Integrated Ocean Drilling Program Expedition 317 sites were examined using various techniques to assess the nature and chemistry of authigenic carbonate cements. Flatbed scanning of thin sections coupled with optical microscopy and scanning electron microscope/energy dispersive X-ray (SEM/EDS) mapping provides a visual reference catalog that is presented here as supplementary material. These techniques, along with X-ray diffraction, were used to confirm the presence of calcite cement in 24 of the 30 samples, with the remaining 6 samples having either dolomite or magnesian calcite cement. Carbon and oxygen isotopic analysis was performed on a subset of samples to provide additional information regarding the nature of the cements. Proportions of terrigenous and bioclastic components, matrix, cement, and porosity were estimated by point-counting thin sections. ¹Carson, D., and Marsaglia, K.M., 2015. Data report: preliminary investigation of carbonate-cemented zones in IODP cores from Canterbury Basin, South Island, New Zealand. In Fulthorpe, C.S., Hoyanagi, K., Blum, P., and the Expedition 317 Scientists, Proc. IODP, 317: Tokyo (Integrated Ocean Drilling Program Management International, Inc.). doi:10.2204/iodp.proc.317.204.2015 ²Department of Geological Sciences, California State University, 18111 Nordhoff Street, Northridge CA 91330-8266, USA. Correspondence author: DCarson@getty.edu Initial receipt: 5 September 2012 Acceptance: 29 January 2015 Publication: 22 May 2015 MS 317-204 Top of page \| Previous \| Next